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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Flash Interface</title>
<title>CMSIS-Driver: Flash Interface</title>
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<div id="projectname">CMSIS-Driver
 <span id="projectnumber">Version 2.04</span>
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<div id="projectbrief">Peripheral Interface for Middleware and Application Code</div>
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<div class="title">Flash Interface</div> </div>
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<p>Driver API for Flash Device Interface (Driver_Flash.h)
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
Content</h2></td></tr>
<tr class="memitem:group___flash__events"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___flash__events.html">Flash Events</a></td></tr>
<tr class="memdesc:group___flash__events"><td class="mdescLeft"> </td><td class="mdescRight">The Flash driver generates call back events that are notified via the function <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a>. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r">ARM_FLASH_SECTOR</a></td></tr>
<tr class="memdesc:struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r"><td class="mdescLeft"> </td><td class="mdescRight">Flash Sector information. <a href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r">More...</a><br/></td></tr>
<tr class="separator:struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:struct_a_r_m___f_l_a_s_h___i_n_f_o"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a></td></tr>
<tr class="memdesc:struct_a_r_m___f_l_a_s_h___i_n_f_o"><td class="mdescLeft"> </td><td class="mdescRight">Flash information. <a href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">More...</a><br/></td></tr>
<tr class="separator:struct_a_r_m___f_l_a_s_h___i_n_f_o"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h">ARM_DRIVER_FLASH</a></td></tr>
<tr class="memdesc:struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h"><td class="mdescLeft"> </td><td class="mdescRight">Access structure of the Flash Driver. <a href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h">More...</a><br/></td></tr>
<tr class="separator:struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a></td></tr>
<tr class="memdesc:struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s"><td class="mdescLeft"> </td><td class="mdescRight">Flash Driver Capabilities. <a href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">More...</a><br/></td></tr>
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<tr class="memitem:struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a></td></tr>
<tr class="memdesc:struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s"><td class="mdescLeft"> </td><td class="mdescRight">Flash Status. <a href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">More...</a><br/></td></tr>
<tr class="separator:struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:gabeb4ad43b1e6fa4ed956cd5c9371d327"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#gabeb4ad43b1e6fa4ed956cd5c9371d327">ARM_Flash_SignalEvent_t</a> )(uint32_t event)</td></tr>
<tr class="memdesc:gabeb4ad43b1e6fa4ed956cd5c9371d327"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> : Signal Flash Event. <a href="#gabeb4ad43b1e6fa4ed956cd5c9371d327"></a><br/></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga1cfe24b2ffa571ee50ae544bd922b604"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga1cfe24b2ffa571ee50ae544bd922b604">ARM_Flash_GetVersion</a> (void)</td></tr>
<tr class="memdesc:ga1cfe24b2ffa571ee50ae544bd922b604"><td class="mdescLeft"> </td><td class="mdescRight">Get driver version. <a href="#ga1cfe24b2ffa571ee50ae544bd922b604"></a><br/></td></tr>
<tr class="separator:ga1cfe24b2ffa571ee50ae544bd922b604"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga27c23c998032cd47cb47293c0185ee5d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a> (void)</td></tr>
<tr class="memdesc:ga27c23c998032cd47cb47293c0185ee5d"><td class="mdescLeft"> </td><td class="mdescRight">Get driver capabilities. <a href="#ga27c23c998032cd47cb47293c0185ee5d"></a><br/></td></tr>
<tr class="separator:ga27c23c998032cd47cb47293c0185ee5d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa5b4bbe529d620d4ad4825588a4c4cf0"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#gaa5b4bbe529d620d4ad4825588a4c4cf0">ARM_Flash_Initialize</a> (<a class="el" href="group__flash__interface__gr.html#gabeb4ad43b1e6fa4ed956cd5c9371d327">ARM_Flash_SignalEvent_t</a> cb_event)</td></tr>
<tr class="memdesc:gaa5b4bbe529d620d4ad4825588a4c4cf0"><td class="mdescLeft"> </td><td class="mdescRight">Initialize the Flash Interface. <a href="#gaa5b4bbe529d620d4ad4825588a4c4cf0"></a><br/></td></tr>
<tr class="separator:gaa5b4bbe529d620d4ad4825588a4c4cf0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gae23af293e9f8a67cdb19c7d0d562d415"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#gae23af293e9f8a67cdb19c7d0d562d415">ARM_Flash_Uninitialize</a> (void)</td></tr>
<tr class="memdesc:gae23af293e9f8a67cdb19c7d0d562d415"><td class="mdescLeft"> </td><td class="mdescRight">De-initialize the Flash Interface. <a href="#gae23af293e9f8a67cdb19c7d0d562d415"></a><br/></td></tr>
<tr class="separator:gae23af293e9f8a67cdb19c7d0d562d415"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa8baa4618ea33568f8b3752afb2ab5a2"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#gaa8baa4618ea33568f8b3752afb2ab5a2">ARM_Flash_PowerControl</a> (<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td></tr>
<tr class="memdesc:gaa8baa4618ea33568f8b3752afb2ab5a2"><td class="mdescLeft"> </td><td class="mdescRight">Control the Flash interface power. <a href="#gaa8baa4618ea33568f8b3752afb2ab5a2"></a><br/></td></tr>
<tr class="separator:gaa8baa4618ea33568f8b3752afb2ab5a2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga223138342383219896ed7e255faeb99a"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga223138342383219896ed7e255faeb99a">ARM_Flash_ReadData</a> (uint32_t addr, void *data, uint32_t cnt)</td></tr>
<tr class="memdesc:ga223138342383219896ed7e255faeb99a"><td class="mdescLeft"> </td><td class="mdescRight">Read data from Flash. <a href="#ga223138342383219896ed7e255faeb99a"></a><br/></td></tr>
<tr class="separator:ga223138342383219896ed7e255faeb99a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga947f24ea4042093fdb5605a68ae74f9d"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga947f24ea4042093fdb5605a68ae74f9d">ARM_Flash_ProgramData</a> (uint32_t addr, const void *data, uint32_t cnt)</td></tr>
<tr class="memdesc:ga947f24ea4042093fdb5605a68ae74f9d"><td class="mdescLeft"> </td><td class="mdescRight">Program data to Flash. <a href="#ga947f24ea4042093fdb5605a68ae74f9d"></a><br/></td></tr>
<tr class="separator:ga947f24ea4042093fdb5605a68ae74f9d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga0b2b4fe5a7be579cf3644995a765ea20"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga0b2b4fe5a7be579cf3644995a765ea20">ARM_Flash_EraseSector</a> (uint32_t addr)</td></tr>
<tr class="memdesc:ga0b2b4fe5a7be579cf3644995a765ea20"><td class="mdescLeft"> </td><td class="mdescRight">Erase Flash Sector. <a href="#ga0b2b4fe5a7be579cf3644995a765ea20"></a><br/></td></tr>
<tr class="separator:ga0b2b4fe5a7be579cf3644995a765ea20"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6cbaebe069d31d56c70b1f8f847e2d55"><td class="memItemLeft" align="right" valign="top">int32_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga6cbaebe069d31d56c70b1f8f847e2d55">ARM_Flash_EraseChip</a> (void)</td></tr>
<tr class="memdesc:ga6cbaebe069d31d56c70b1f8f847e2d55"><td class="mdescLeft"> </td><td class="mdescRight">Erase complete Flash. Optional function for faster full chip erase. <a href="#ga6cbaebe069d31d56c70b1f8f847e2d55"></a><br/></td></tr>
<tr class="separator:ga6cbaebe069d31d56c70b1f8f847e2d55"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga06885c0d4587d5a23f97614a8b849ef1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> (void)</td></tr>
<tr class="memdesc:ga06885c0d4587d5a23f97614a8b849ef1"><td class="mdescLeft"> </td><td class="mdescRight">Get Flash status. <a href="#ga06885c0d4587d5a23f97614a8b849ef1"></a><br/></td></tr>
<tr class="separator:ga06885c0d4587d5a23f97614a8b849ef1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gac047b7509356e888502e0424a9d189ae"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#gac047b7509356e888502e0424a9d189ae">ARM_Flash_GetInfo</a> (void)</td></tr>
<tr class="memdesc:gac047b7509356e888502e0424a9d189ae"><td class="mdescLeft"> </td><td class="mdescRight">Get Flash information. <a href="#gac047b7509356e888502e0424a9d189ae"></a><br/></td></tr>
<tr class="separator:gac047b7509356e888502e0424a9d189ae"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga97b75555b5433b268add81f2e60f095a"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> (uint32_t event)</td></tr>
<tr class="memdesc:ga97b75555b5433b268add81f2e60f095a"><td class="mdescLeft"> </td><td class="mdescRight">Signal Flash event. <a href="#ga97b75555b5433b268add81f2e60f095a"></a><br/></td></tr>
<tr class="separator:ga97b75555b5433b268add81f2e60f095a"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>Driver API for Flash Device Interface (Driver_Flash.h) </p>
<p><a href="http://en.wikipedia.org/wiki/Flash_memory" target="_blank">Flash devices</a> based on NOR memory cells are the preferred technology for embedded applications requiring a discrete non-volatile memory device. The low read latency characteristic of these Flash devices allow a direct code execution (<a href="http://en.wikipedia.org/wiki/Execute_in_place" target="_blank">XIP</a>) and data storage in a single memory product.</p>
<p><b>Flash API</b></p>
<p>The <b>Flash</b> <b>API</b> provides a generic API suitable for Flashes with NOR memory cells independent from the actual interface to the MCU (memory bus, SPI, ...). <a href="http://en.wikipedia.org/wiki/Flash_memory#Serial_flash" target="_blank">SPI</a> flashes are typically not named NOR flashes but have usually same flash cell properties.</p>
<p>The following header files define the Application Programming Interface (API) for the Flash interface:</p>
<ul>
<li><b>Driver_Flash.h</b> : Driver API for Flash Device Interface</li>
</ul>
<p><b>Driver Functions</b></p>
<p>The driver functions are published in the access struct as explained in <a class="el" href="_theory_operation.html#DriverFunctions">Common Driver Functions</a></p>
<ul>
<li><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h">ARM_DRIVER_FLASH</a> : access struct for Flash driver functions </li>
</ul>
<hr/><h2 class="groupheader">Data Structure Documentation</h2>
<a name="struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r" id="struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r"></a>
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<td class="memname">struct ARM_FLASH_SECTOR</td>
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<div class="textblock"><p>Flash Sector information. </p>
<p>Specifies sector start and end address.</p>
<p><b>Element of</b>:</p>
<ul>
<li><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a> structure </li>
</ul>
</div><table class="fieldtable">
<tr><th colspan="3">Data Fields</th></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a61eb63d26b2fa6c2971603ceccffb14b"></a>uint32_t</td>
<td class="fieldname">
start</td>
<td class="fielddoc">
Sector Start address. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a204a3f4fa39b9c007f9784d3e4af4667"></a>uint32_t</td>
<td class="fieldname">
end</td>
<td class="fielddoc">
Sector End address (start+size-1) </td></tr>
</table>
</div>
</div>
<a name="struct_a_r_m___f_l_a_s_h___i_n_f_o" id="struct_a_r_m___f_l_a_s_h___i_n_f_o"></a>
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<td class="memname">struct ARM_FLASH_INFO</td>
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<div class="textblock"><p>Flash information. </p>
<p>Stores the characteristics of a Flash device. This includes sector layout, programming size and a default value for erased memory. This information can be obtained from the Flash device datasheet and is used by the middleware in order to properly interact with the Flash device.</p>
<p>Sector layout is described by specifying the <em>sector_info</em> which points to an array of sector information (start and end address) and by specifying the <em>sector_count</em> which defines the number of sectors. The element <em>sector_size</em> is not used in this case and needs to be <em>0</em>. Flash sectors need not to be aligned continuously. Gaps are allowed in the device memory space in order to reserve sectors for other usage (for example application code).</p>
<p>When the device has uniform sector size than the sector layout can be described by specifying the <em>sector_size</em> which defines the size of a single sector and by specifying the <em>sector_count</em> which defines the number of sectors. The element <em>sector_info</em> is not used in this case and needs to be <em>NULL</em>.</p>
<p>The smallest programmable unit within a sector is specified by the <em>program_unit</em>. It defines the granularity for programming data.</p>
<p>Optimal programming page size is specified by the <em>page_size</em> and defines the amount of data that should be programmed in one step to achieve maximum programming speed.</p>
<p>Contents of erased memory is specified by the <em>erased_value</em> and is typically <em>0xFF</em>. This value can be used before erasing a sector to check if the sector is blank and erase can be skipped. </p>
</div><table class="fieldtable">
<tr><th colspan="3">Data Fields</th></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a8dfb9d5160358e45293bba527762238d"></a><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_e_c_t_o_r">ARM_FLASH_SECTOR</a> *</td>
<td class="fieldname">
sector_info</td>
<td class="fielddoc">
Sector layout information (NULL=Uniform sectors) </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a50947f9a42bbaa2d68d6e5079150d7bf"></a>uint32_t</td>
<td class="fieldname">
sector_count</td>
<td class="fielddoc">
Number of sectors. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a7d37def484362c6e97a2d75144080b1d"></a>uint32_t</td>
<td class="fieldname">
sector_size</td>
<td class="fielddoc">
Uniform sector size in bytes (0=sector_info used) </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a9dd3e47e968a8f6beb5d88c6d1b7ebe9"></a>uint32_t</td>
<td class="fieldname">
page_size</td>
<td class="fielddoc">
Optimal programming page size in bytes. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a483c41066757e2865bf3a27a2a627a54"></a>uint32_t</td>
<td class="fieldname">
program_unit</td>
<td class="fielddoc">
Smallest programmable unit in bytes. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a85c3826bf20669d38e466dfd376994db"></a>uint8_t</td>
<td class="fieldname">
erased_value</td>
<td class="fielddoc">
Contents of erased memory (usually 0xFF) </td></tr>
</table>
</div>
</div>
<a name="struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h" id="struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h"></a>
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<td class="memname">struct ARM_DRIVER_FLASH</td>
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<div class="textblock"><p>Access structure of the Flash Driver. </p>
<p>The functions of the Flash driver are accessed by function pointers exposed by this structure. Refer to <a class="el" href="_theory_operation.html#DriverFunctions">Common Driver Functions</a> for overview information.</p>
<p>Each instance of a Flash interface provides such an access structure. The instance is identified by a postfix number in the symbol name of the access structure, for example:</p>
<ul>
<li><b>Driver_Flash0</b> is the name of the access struct of the first instance (no. 0).</li>
<li><b>Driver_Flash1</b> is the name of the access struct of the second instance (no. 1).</li>
</ul>
<p>A middleware configuration setting allows connecting the middleware to a specific driver instance <b>Driver_Flash<em>n</em></b>. The default is <span class="XML-Token">0</span>, which connects a middleware to the first instance of a driver. </p>
</div><table class="memberdecls">
<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
<tr class="memitem:a8834b281da48583845c044a81566c1b3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#a8834b281da48583845c044a81566c1b3">GetVersion</a> )(void)</td></tr>
<tr class="memdesc:a8834b281da48583845c044a81566c1b3"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga1cfe24b2ffa571ee50ae544bd922b604">ARM_Flash_GetVersion</a> : Get driver version. <a href="#a8834b281da48583845c044a81566c1b3"></a><br/></td></tr>
<tr class="separator:a8834b281da48583845c044a81566c1b3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a25076bd7274af5d3b0af6380ed1f0331"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#a25076bd7274af5d3b0af6380ed1f0331">GetCapabilities</a> )(void)</td></tr>
<tr class="memdesc:a25076bd7274af5d3b0af6380ed1f0331"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a> : Get driver capabilities. <a href="#a25076bd7274af5d3b0af6380ed1f0331"></a><br/></td></tr>
<tr class="separator:a25076bd7274af5d3b0af6380ed1f0331"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2d1eb2b5c3ee21ba5c92c37e89412567"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#a2d1eb2b5c3ee21ba5c92c37e89412567">Initialize</a> )(<a class="el" href="group__flash__interface__gr.html#gabeb4ad43b1e6fa4ed956cd5c9371d327">ARM_Flash_SignalEvent_t</a> cb_event)</td></tr>
<tr class="memdesc:a2d1eb2b5c3ee21ba5c92c37e89412567"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#gaa5b4bbe529d620d4ad4825588a4c4cf0">ARM_Flash_Initialize</a> : Initialize Flash Interface. <a href="#a2d1eb2b5c3ee21ba5c92c37e89412567"></a><br/></td></tr>
<tr class="separator:a2d1eb2b5c3ee21ba5c92c37e89412567"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adcf20681a1402869ecb5c6447fada17b"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#adcf20681a1402869ecb5c6447fada17b">Uninitialize</a> )(void)</td></tr>
<tr class="memdesc:adcf20681a1402869ecb5c6447fada17b"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#gae23af293e9f8a67cdb19c7d0d562d415">ARM_Flash_Uninitialize</a> : De-initialize Flash Interface. <a href="#adcf20681a1402869ecb5c6447fada17b"></a><br/></td></tr>
<tr class="separator:adcf20681a1402869ecb5c6447fada17b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aba8f1c8019af95ffe19c32403e3240ef"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#aba8f1c8019af95ffe19c32403e3240ef">PowerControl</a> )(<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td></tr>
<tr class="memdesc:aba8f1c8019af95ffe19c32403e3240ef"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#gaa8baa4618ea33568f8b3752afb2ab5a2">ARM_Flash_PowerControl</a> : Control Flash Interface Power. <a href="#aba8f1c8019af95ffe19c32403e3240ef"></a><br/></td></tr>
<tr class="separator:aba8f1c8019af95ffe19c32403e3240ef"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adec45569a2f6f0d915a206f8f19107bd"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#adec45569a2f6f0d915a206f8f19107bd">ReadData</a> )(uint32_t addr, void *data, uint32_t cnt)</td></tr>
<tr class="memdesc:adec45569a2f6f0d915a206f8f19107bd"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga223138342383219896ed7e255faeb99a">ARM_Flash_ReadData</a> : Read data from Flash. <a href="#adec45569a2f6f0d915a206f8f19107bd"></a><br/></td></tr>
<tr class="separator:adec45569a2f6f0d915a206f8f19107bd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a429fc193f1ec62858219ab8749c563ae"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#a429fc193f1ec62858219ab8749c563ae">ProgramData</a> )(uint32_t addr, const void *data, uint32_t cnt)</td></tr>
<tr class="memdesc:a429fc193f1ec62858219ab8749c563ae"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga947f24ea4042093fdb5605a68ae74f9d">ARM_Flash_ProgramData</a> : Program data to Flash. <a href="#a429fc193f1ec62858219ab8749c563ae"></a><br/></td></tr>
<tr class="separator:a429fc193f1ec62858219ab8749c563ae"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ad9d78f9fe07aabf12b23b95239818b55"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ad9d78f9fe07aabf12b23b95239818b55">EraseSector</a> )(uint32_t addr)</td></tr>
<tr class="memdesc:ad9d78f9fe07aabf12b23b95239818b55"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga0b2b4fe5a7be579cf3644995a765ea20">ARM_Flash_EraseSector</a> : Erase Flash Sector. <a href="#ad9d78f9fe07aabf12b23b95239818b55"></a><br/></td></tr>
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<tr class="memitem:ae873705c743d94572fb6500421e15760"><td class="memItemLeft" align="right" valign="top">int32_t(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ae873705c743d94572fb6500421e15760">EraseChip</a> )(void)</td></tr>
<tr class="memdesc:ae873705c743d94572fb6500421e15760"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga6cbaebe069d31d56c70b1f8f847e2d55">ARM_Flash_EraseChip</a> : Erase complete Flash. <a href="#ae873705c743d94572fb6500421e15760"></a><br/></td></tr>
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<tr class="memitem:afc1db6f33f777784f3c95efc816d4856"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#afc1db6f33f777784f3c95efc816d4856">GetStatus</a> )(void)</td></tr>
<tr class="memdesc:afc1db6f33f777784f3c95efc816d4856"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> : Get Flash status. <a href="#afc1db6f33f777784f3c95efc816d4856"></a><br/></td></tr>
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<tr class="memitem:ae64d4ee61b7a7ee0b38a0ef2b61f1db2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a> *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flash__interface__gr.html#ae64d4ee61b7a7ee0b38a0ef2b61f1db2">GetInfo</a> )(void)</td></tr>
<tr class="memdesc:ae64d4ee61b7a7ee0b38a0ef2b61f1db2"><td class="mdescLeft"> </td><td class="mdescRight">Pointer to <a class="el" href="group__flash__interface__gr.html#gac047b7509356e888502e0424a9d189ae">ARM_Flash_GetInfo</a> : Get Flash information. <a href="#ae64d4ee61b7a7ee0b38a0ef2b61f1db2"></a><br/></td></tr>
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<h4 class="groupheader">Field Documentation</h4>
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<td class="memname"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a>(* GetVersion)(void)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga1cfe24b2ffa571ee50ae544bd922b604">ARM_Flash_GetVersion</a> : Get driver version. </p>
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<td class="memname"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a>(* GetCapabilities)(void)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a> : Get driver capabilities. </p>
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<td class="memname">int32_t(* Initialize)(<a class="el" href="group__flash__interface__gr.html#gabeb4ad43b1e6fa4ed956cd5c9371d327">ARM_Flash_SignalEvent_t</a> cb_event)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#gaa5b4bbe529d620d4ad4825588a4c4cf0">ARM_Flash_Initialize</a> : Initialize Flash Interface. </p>
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<td class="memname">int32_t(* Uninitialize)(void)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#gae23af293e9f8a67cdb19c7d0d562d415">ARM_Flash_Uninitialize</a> : De-initialize Flash Interface. </p>
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<td class="memname">int32_t(* PowerControl)(<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#gaa8baa4618ea33568f8b3752afb2ab5a2">ARM_Flash_PowerControl</a> : Control Flash Interface Power. </p>
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<td class="memname">int32_t(* ReadData)(uint32_t addr, void *data, uint32_t cnt)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga223138342383219896ed7e255faeb99a">ARM_Flash_ReadData</a> : Read data from Flash. </p>
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<td class="memname">int32_t(* ProgramData)(uint32_t addr, const void *data, uint32_t cnt)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga947f24ea4042093fdb5605a68ae74f9d">ARM_Flash_ProgramData</a> : Program data to Flash. </p>
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<td class="memname">int32_t(* EraseSector)(uint32_t addr)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga0b2b4fe5a7be579cf3644995a765ea20">ARM_Flash_EraseSector</a> : Erase Flash Sector. </p>
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<td class="memname">int32_t(* EraseChip)(void)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga6cbaebe069d31d56c70b1f8f847e2d55">ARM_Flash_EraseChip</a> : Erase complete Flash. </p>
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<td class="memname"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a>(* GetStatus)(void)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> : Get Flash status. </p>
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<td class="memname"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a>*(* GetInfo)(void)</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#gac047b7509356e888502e0424a9d189ae">ARM_Flash_GetInfo</a> : Get Flash information. </p>
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<td class="memname">struct ARM_FLASH_CAPABILITIES</td>
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<div class="textblock"><p>Flash Driver Capabilities. </p>
<p>A Flash driver can be implemented with different capabilities. The data fields of this struct encode the capabilities implemented by this driver.</p>
<p>The element <em>event_ready</em> indicates that the driver is able to generate the <a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> event. In case that this event is not available it is possible to poll the driver status by calling the <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> and check the <em>busy</em> flag.</p>
<p>The element <em>data_width</em> specifies the data access size and also defines the data type (uint8_t, uint16_t or uint32_t) for the <em>data</em> parameter in <a class="el" href="group__flash__interface__gr.html#ga223138342383219896ed7e255faeb99a">ARM_Flash_ReadData</a> and <a class="el" href="group__flash__interface__gr.html#ga947f24ea4042093fdb5605a68ae74f9d">ARM_Flash_ProgramData</a> functions.</p>
<p>The element <em>erase_chip</em> specifies that the <a class="el" href="group__flash__interface__gr.html#ga6cbaebe069d31d56c70b1f8f847e2d55">ARM_Flash_EraseChip</a> function is supported. Typically full chip erase is much faster than erasing the whole device sector per sector.</p>
<p><b>Returned by:</b></p>
<ul>
<li><a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a> </li>
</ul>
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<tr><th colspan="3">Data Fields</th></tr>
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<a class="anchor" id="add296ba516c8fc17ba51e30f2a00f0a9"></a>uint32_t</td>
<td class="fieldname">
event_ready: 1</td>
<td class="fielddoc">
Signal Flash Ready event. </td></tr>
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<a class="anchor" id="a04c173610dd0a545ecae308e342aafb0"></a>uint32_t</td>
<td class="fieldname">
data_width: 2</td>
<td class="fielddoc">
Data width: 0=8-bit, 1=16-bit, 2=32-bit. </td></tr>
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<a class="anchor" id="af5ec2b569c193fc5024c2739f46b328a"></a>uint32_t</td>
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erase_chip: 1</td>
<td class="fielddoc">
Supports EraseChip operation. </td></tr>
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<div class="textblock"><p>Flash Status. </p>
<p>Structure with information about the status of the Flash.</p>
<p>The flag <em>busy</em> indicates that the driver is busy executing read/program/erase operation.</p>
<p>The flag <em>error</em> flag is cleared on start of read/program/erase operation and is set at the end of the current operation in case of error.</p>
<p><b>Returned by:</b></p>
<ul>
<li><a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> </li>
</ul>
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<tr><th colspan="3">Data Fields</th></tr>
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<a class="anchor" id="a50c88f3c1d787773e2ac1b59533f034a"></a>uint32_t</td>
<td class="fieldname">
busy: 1</td>
<td class="fielddoc">
Flash busy flag. </td></tr>
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<a class="anchor" id="aa8d183302fdfa4a6892f1d80300cdb32"></a>uint32_t</td>
<td class="fieldname">
error: 1</td>
<td class="fielddoc">
Read/Program/Erase error flag (cleared on start of next operation) </td></tr>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">ARM_Flash_SignalEvent_t</td>
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<p>Pointer to <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> : Signal Flash Event. </p>
<p>Provides the typedef for the callback function <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a>.</p>
<p><b>Parameter for:</b></p>
<ul>
<li><a class="el" href="group__flash__interface__gr.html#gaa5b4bbe529d620d4ad4825588a4c4cf0">ARM_Flash_Initialize</a> </li>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname"><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a> ARM_Flash_GetVersion </td>
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<p>Get driver version. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a></dd></dl>
<p>The function <b>ARM_Flash_GetVersion</b> returns version information of the driver implementation in <a class="el" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n">ARM_DRIVER_VERSION</a></p>
<ul>
<li>API version is the version of the CMSIS-Driver specification used to implement this driver.</li>
<li>Driver version is source code version of the actual driver implementation.</li>
</ul>
<p>Example: </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h" title="Access structure of the Flash Driver.">ARM_DRIVER_FLASH</a> Driver_Flash0;</div>
<div class="line"><a class="code" href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h" title="Access structure of the Flash Driver.">ARM_DRIVER_FLASH</a> *drv_info;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> read_version (<span class="keywordtype">void</span>) {</div>
<div class="line"> <a class="code" href="group__common__drv__gr.html#struct_a_r_m___d_r_i_v_e_r___v_e_r_s_i_o_n" title="Driver Version.">ARM_DRIVER_VERSION</a> version;</div>
<div class="line"> </div>
<div class="line"> drv_info = &Driver_Flash0; </div>
<div class="line"> version = drv_info-><a class="code" href="group__flash__interface__gr.html#a8834b281da48583845c044a81566c1b3" title="Pointer to ARM_Flash_GetVersion : Get driver version.">GetVersion</a> ();</div>
<div class="line"> <span class="keywordflow">if</span> (version.<a class="code" href="group__common__drv__gr.html#ad180da20fbde1d3dafc074af87c19540" title="API version.">api</a> < 0x10A) { <span class="comment">// requires at minimum API version 1.10 or higher</span></div>
<div class="line"> <span class="comment">// error handling</span></div>
<div class="line"> <span class="keywordflow">return</span>;</div>
<div class="line"> }</div>
<div class="line">}</div>
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<td class="memname"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a> ARM_Flash_GetCapabilities </td>
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<p>Get driver capabilities. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a></dd></dl>
<p>The function <b>ARM_Flash_GetCapabilities</b> returns information about capabilities in this driver implementation. The data fields of the struct <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a> encode various capabilities, for example if a hardware is able to create signal events using the <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> callback function.</p>
<p>Example: </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h" title="Access structure of the Flash Driver.">ARM_DRIVER_FLASH</a> Driver_Flash0;</div>
<div class="line"><a class="code" href="group__flash__interface__gr.html#struct_a_r_m___d_r_i_v_e_r___f_l_a_s_h" title="Access structure of the Flash Driver.">ARM_DRIVER_FLASH</a> *drv_info;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> read_capabilities (<span class="keywordtype">void</span>) {</div>
<div class="line"> <a class="code" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s" title="Flash Driver Capabilities.">ARM_FLASH_CAPABILITIES</a> drv_capabilities;</div>
<div class="line"> </div>
<div class="line"> drv_info = &Driver_Flash0; </div>
<div class="line"> drv_capabilities = drv_info-><a class="code" href="group__flash__interface__gr.html#a25076bd7274af5d3b0af6380ed1f0331" title="Pointer to ARM_Flash_GetCapabilities : Get driver capabilities.">GetCapabilities</a> ();</div>
<div class="line"> <span class="comment">// interrogate capabilities</span></div>
<div class="line"> </div>
<div class="line">}</div>
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<td class="memname">int32_t ARM_Flash_Initialize </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__flash__interface__gr.html#gabeb4ad43b1e6fa4ed956cd5c9371d327">ARM_Flash_SignalEvent_t</a> </td>
<td class="paramname"><em>cb_event</em></td><td>)</td>
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<p>Initialize the Flash Interface. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">cb_event</td><td>Pointer to <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> </td></tr>
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<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <b>ARM_Flash_Initialize</b> initializes the Flash interface. It is called when the middleware component starts operation.</p>
<p>The function performs the following operations:</p>
<ul>
<li>Initializes the resources needed for the Flash interface.</li>
<li>Registers the <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> callback function.</li>
</ul>
<p>The parameter <em>cb_event</em> is a pointer to the <a class="el" href="group__flash__interface__gr.html#ga97b75555b5433b268add81f2e60f095a">ARM_Flash_SignalEvent</a> callback function; use a NULL pointer when no callback signals are required.</p>
<p><b>Example:</b> </p>
<ul>
<li>see <a class="el" href="group__flash__interface__gr.html">Flash Interface</a> - Driver Functions </li>
</ul>
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<td class="memname">int32_t ARM_Flash_Uninitialize </td>
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<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>De-initialize the Flash Interface. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <b>ARM_Flash_Uninitialize</b> de-initializes the resources of Flash interface.</p>
<p>It is called when the middleware component stops operation and releases the software resources used by the interface. </p>
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<td class="memname">int32_t ARM_Flash_PowerControl </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> </td>
<td class="paramname"><em>state</em></td><td>)</td>
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<p>Control the Flash interface power. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">state</td><td>Power state </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The function <b>ARM_Flash_PowerControl</b> operates the power modes of the Flash interface.</p>
<p>The parameter <em>state</em> can have the following values:</p>
<ul>
<li><a class="el" href="_driver___common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5abed52b77a9ce4775570e44a842b1295e">ARM_POWER_FULL</a> : set-up peripheral for data transfers, enable interrupts (NVIC) and optionally DMA. Can be called multiple times. If the peripheral is already in this mode, then the function performs no operation and returns with <a class="el" href="group__execution__status.html#ga85752c5de59e8adeb001e35ff5be6be7">ARM_DRIVER_OK</a>.</li>
<li><a class="el" href="_driver___common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5a9ef9e57cbcc948d0e22314e73dc8c434">ARM_POWER_LOW</a> : may use power saving. Returns <a class="el" href="group__execution__status.html#ga2efa59e480d82697795439220e6884e4">ARM_DRIVER_ERROR_UNSUPPORTED</a> when not implemented.</li>
<li><a class="el" href="_driver___common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5ab6f5becc85ebd51c3dd2524a95d2ca35">ARM_POWER_OFF</a> : terminates any pending data transfers, disables peripheral, disables related interrupts and DMA.</li>
</ul>
<p>Refer to <a class="el" href="_theory_operation.html#CallSequence">Function Call Sequence</a> for more information. </p>
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<td class="memname">int32_t ARM_Flash_ReadData </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>addr</em>, </td>
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<td class="paramname"><em>data</em>, </td>
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<td class="paramname"><em>cnt</em> </td>
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<p>Read data from Flash. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>Data address. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">data</td><td>Pointer to a buffer storing the data read from Flash. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">cnt</td><td>Number of data items to read. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of data items read or <a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>This function <b>ARM_Flash_ReadData</b> reads data from the Flash device.</p>
<p>The parameter <em>addr</em> specifies the address from where to read data (needs to be aligned to data type size). <br/>
The parameter <em>data</em> specifies the pointer to a buffer storing the data read. The data type is <em>uint8_t</em>, <em>uint16_t</em> or <em>uint32_t</em> and is specified by the <em>data_width</em> in <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a>. <br/>
The parameter <em>cnt</em> specifies the number of data items to read.</p>
<p>The function executes in the following ways:</p>
<ul>
<li>When the operation is non-blocking (typical for SPI Flash) then the function only starts the operation and returns with zero number of data items read. When the operation is completed the <a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> event is generated (if supported and reported by <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a>). In case of errors the <a class="el" href="group___flash__events.html#ga0dfea52761c0eed83e5d73e7a7f69962">ARM_FLASH_EVENT_ERROR</a> event is generated at the same time. Progress of the operation can also be monitored by calling the <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> function and checking the <em>busy</em> flag.</li>
<li>When the operation is blocking (typical for memory mapped Flash) then the function returns after the data is read and returns the number of data items read. </li>
</ul>
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<td class="memname">int32_t ARM_Flash_ProgramData </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>addr</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const void * </td>
<td class="paramname"><em>data</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>cnt</em> </td>
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<p>Program data to Flash. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>Data address. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">data</td><td>Pointer to a buffer containing the data to be programmed to Flash. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">cnt</td><td>Number of data items to program. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>number of data items programmed or <a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>This function <b>ARM_Flash_ProgramData</b> programs data to the Flash device.</p>
<p>The parameter <em>addr</em> specifies the address to where to program data (needs to be aligned to <em>program_unit</em> specified in <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a>). <br/>
The parameter <em>data</em> specifies the pointer to a buffer containing data to be programmed. The data type is <em>uint8_t</em>, <em>uint16_t</em> or <em>uint32_t</em> and is specified by the <em>data_width</em> in <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a>. <br/>
The parameter <em>cnt</em> specifies the number of data items to program (data size needs to be a multiple of <em>program_unit</em>).</p>
<p>The function executes in the following ways:</p>
<ul>
<li>When the operation is non-blocking (typically) then the function only starts the operation and returns with zero number of data items programmed. When the operation is completed the <a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> event is generated (if supported and reported by <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a>). In case of errors the <a class="el" href="group___flash__events.html#ga0dfea52761c0eed83e5d73e7a7f69962">ARM_FLASH_EVENT_ERROR</a> event is generated at the same time. Progress of the operation can also be monitored by calling the <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> function and checking the <em>busy</em> flag.</li>
<li>When the operation is blocking then the function returns after the data is programmed and returns the number of data items programmed. </li>
</ul>
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<td class="memname">int32_t ARM_Flash_EraseSector </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>addr</em></td><td>)</td>
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<p>Erase Flash Sector. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">addr</td><td>Sector address </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>This function <b>ARM_Flash_EraseSector</b> erases a flash sector specified by the parameter <em>adr</em> (points to start of the sector).</p>
<p>The function is non-blocking and returns as soon as the driver has started the operation. When the operation is completed the <a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> event is generated (if supported and reported by <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a>). In case of errors the <a class="el" href="group___flash__events.html#ga0dfea52761c0eed83e5d73e7a7f69962">ARM_FLASH_EVENT_ERROR</a> event is generated at the same time. Progress of the operation can also be monitored by calling the <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> function and checking the <em>busy</em> flag. </p>
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<td class="memname">int32_t ARM_Flash_EraseChip </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Erase complete Flash. Optional function for faster full chip erase. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__execution__status.html">Status Error Codes</a></dd></dl>
<p>The optional function <b>ARM_Flash_EraseChip</b> erases the complete device. If the device does not support global erase or only a portion of the Flash memory space is used for storing files, then the functions returns the error value <a class="el" href="group__execution__status.html#ga2efa59e480d82697795439220e6884e4">ARM_DRIVER_ERROR_UNSUPPORTED</a>. The data field <em>eras_chip</em> = <span class="XML-Token">1</span> of the structure <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a> encodes that <b>ARM_Flash_EraseChip</b> is supported. The field can be verified with the function <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a>.</p>
<p>The function is non-blocking and returns as soon as the driver has started the operation. When the operation is completed, the <a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> event is generated (if supported and reported by <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a>). In case of errors, the <a class="el" href="group___flash__events.html#ga0dfea52761c0eed83e5d73e7a7f69962">ARM_FLASH_EVENT_ERROR</a> event is generated at the same time. Progress of the operation can also be monitored by calling the <a class="el" href="group__flash__interface__gr.html#ga06885c0d4587d5a23f97614a8b849ef1">ARM_Flash_GetStatus</a> function and checking the <em>busy</em> flag.</p>
<p><b>See also:</b></p>
<ul>
<li>ARM_Flash_SignalEvent </li>
</ul>
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<td class="memname"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a> ARM_Flash_GetStatus </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
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<p>Get Flash status. </p>
<dl class="section return"><dt>Returns</dt><dd>Flash status <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a></dd></dl>
<p>The function <b>ARM_Flash_GetStatus</b> returns the current Flash interface status stored in the structure <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___s_t_a_t_u_s">ARM_FLASH_STATUS</a>. </p>
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<td class="memname"><a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a> * ARM_Flash_GetInfo </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Get Flash information. </p>
<dl class="section return"><dt>Returns</dt><dd>Pointer to Flash information <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___i_n_f_o">ARM_FLASH_INFO</a></dd></dl>
<p>The function <b>ARM_Flash_GetInfo</b> returns information about the Flash device. </p>
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<td class="memname">void ARM_Flash_SignalEvent </td>
<td>(</td>
<td class="paramtype">uint32_t </td>
<td class="paramname"><em>event</em></td><td>)</td>
<td></td>
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<p>Signal Flash event. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">event</td><td>Event notification mask </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<p>The function <b>ARM_Flash_SignalEvent</b> is a callback function registered by the function <a class="el" href="group__flash__interface__gr.html#gaa5b4bbe529d620d4ad4825588a4c4cf0">ARM_Flash_Initialize</a>. The function is called automatically after read/program/erase operation completes.</p>
<p>The parameter <em>event</em> indicates one or more events that occurred during driver operation. Each event is coded in a separate bit and therefore it is possible to signal multiple events in the event call back function.</p>
<p>Not every event is necessarily generated by the driver. This depends on the implemented capabilities stored in the data fields of the structure <a class="el" href="group__flash__interface__gr.html#struct_a_r_m___f_l_a_s_h___c_a_p_a_b_i_l_i_t_i_e_s">ARM_FLASH_CAPABILITIES</a>, which can be retrieved with the function <a class="el" href="group__flash__interface__gr.html#ga27c23c998032cd47cb47293c0185ee5d">ARM_Flash_GetCapabilities</a>.</p>
<p>The following events can be generated:</p>
<table class="doxtable">
<tr>
<th align="left">Parameter <em>event</em> </th><th align="center">Bit </th><th align="left">Description</th></tr>
<tr>
<td align="left"><a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> </td><td align="center">0 </td><td align="left">Occurs after read/program/erase operation completes. </td></tr>
<tr>
<td align="left"><a class="el" href="group___flash__events.html#ga0dfea52761c0eed83e5d73e7a7f69962">ARM_FLASH_EVENT_ERROR</a> </td><td align="center">1 </td><td align="left">Occurs together with <a class="el" href="group___flash__events.html#gaf7a9c4ad125ee90df35907d861151e23">ARM_FLASH_EVENT_READY</a> when operation completes with errors. </td></tr>
</table>
<p><b>See also:</b></p>
<ul>
<li><a class="el" href="group__flash__interface__gr.html#ga6cbaebe069d31d56c70b1f8f847e2d55">ARM_Flash_EraseChip</a> </li>
</ul>
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