1 files changed, 135 insertions, 0 deletions
diff --git a/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/main.c b/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/main.c
new file mode 100644
index 0000000..95f080d
--- /dev/null
+++ b/examples/imx7_colibri_m4/driver_examples/ecspi/ecspi_polling/master/main.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include "board.h"
+#include "debug_console_imx.h"
+#include "ecspi.h"
+#include "clock_freq.h"
+
+/* define ECSPI master mode parameters configuration. */
+#define ECSPI_MASTER_BURSTLENGTH        (7)
+#define ECSPI_MASTER_STARTMODE          (0)
+#define BURST_LENGTH_IN_BYTES(x)        ((8 * x) - 1)
+
+/* ECSPI data transfer */
+static bool ECSPI_MasterTransfer(uint8_t* txBuffer, uint8_t* rxBuffer, uint32_t transferSize);
+
+int main(void)
+{
+    uint8_t txData = 0;
+    uint8_t rxData = 0;
+    uint8_t control_char;
+
+    ecspi_init_config_t initConfig = {
+        .baudRate = 500000,
+        .mode = ecspiMasterMode,
+        .burstLength = ECSPI_MASTER_BURSTLENGTH,
+        .channelSelect = BOARD_ECSPI_CHANNEL,
+        .clockPhase = ecspiClockPhaseSecondEdge,
+        .clockPolarity = ecspiClockPolarityActiveHigh,
+        .ecspiAutoStart = ECSPI_MASTER_STARTMODE
+    };
+
+    /* Hardware initialize, include RDC, CLOCK, IOMUX, ENABLE MODULE */
+    hardware_init();
+
+    /* Update clock frequency of this module */
+    initConfig.clockRate = get_ecspi_clock_freq(BOARD_ECSPI_BASEADDR);
+
+    PRINTF("\n-------------- ECSPI master driver example --------------\n\n\r");
+    PRINTF("This example application demonstrates usage of SPI driver in master mode.\n\r");
+    PRINTF("It transfers data to/from remote MCU in SPI slave mode.\n\r");
+
+    /* Ecspi module initialize, include configure parameters */
+    ECSPI_Init(BOARD_ECSPI_BASEADDR, &initConfig);
+
+    /* Wait slave ready, then press 's' to start communication. */
+    while (true)
+    {
+        PRINTF("Press \"s\" when SPI slave is ready.\n\r");
+        control_char = GETCHAR();
+        if ((control_char == 's') || (control_char == 'S'))
+            break;
+    }
+
+    /* Send 1~20 to slave and receive data from slave */
+    for (uint8_t i = 0; i < 20; i++)
+    {
+        txData++;
+        ECSPI_MasterTransfer(&txData, &rxData, 1);
+        PRINTF("MASTER: Transmited data: %d \n\r", txData);
+        PRINTF("      : Received   data: %d \n\r", rxData);
+    }
+
+    PRINTF("Example finish!!!\n\r");
+    while (1)
+        __WFI();
+}
+
+/******************************************************************************
+*
+* Function Name: ECSPI_MasterTransfer
+* Comments: Transmit and Receive an amount of data in no-blocking mode with
+*           interrupt.
+*
+******************************************************************************/
+static bool ECSPI_MasterTransfer(uint8_t* txBuffer, uint8_t* rxBuffer, uint32_t transferSize)
+{
+    if (0 == transferSize)
+        return false;
+
+    /* Set the burst length to one byte(8 bits) */
+    ECSPI_SetBurstLength(BOARD_ECSPI_BASEADDR, BURST_LENGTH_IN_BYTES(1));
+
+    while (transferSize)
+    {
+        /* Fill the TXFIFO */
+        ECSPI_SendData(BOARD_ECSPI_BASEADDR, *txBuffer++);
+
+        /* start transmission */
+        ECSPI_StartBurst(BOARD_ECSPI_BASEADDR);
+
+        /* Wait transmission finish */
+        while (!ECSPI_GetStatusFlag(BOARD_ECSPI_BASEADDR, ecspiFlagTxfifoTc));
+        ECSPI_ClearStatusFlag(BOARD_ECSPI_BASEADDR, ecspiFlagTxfifoTc);
+
+        /* Fill the RXFIFO */
+        *rxBuffer = ECSPI_ReceiveData(BOARD_ECSPI_BASEADDR);
+
+        transferSize--;
+    }
+
+    return true;
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/