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/*
* 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 <stdint.h>
#include <stdbool.h>
#include "FreeRTOS.h"
#include "task.h"
#include "board.h"
#include "uart_imx.h"
#include "debug_console_imx.h"
#include "ecspi_xfer.h"
#include "spi_memory.h"
#include "clock_freq.h"
/* define ECSPI module parameters configuration. */
#define ECSPI_BURSTLENGTH (39)
#define ECSPI_STARTMODE (false)
/* buffer used to transfer data */
static uint8_t txData[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00};
static uint8_t rxData[32] = {0};
/******************************************************************************
*
* Function Name: vMemoryTask
* Comments: this task is used to operate memory, such as read status, write data
* in memory and read data from memory.
*
******************************************************************************/
void vMemoryTask(void *pvParameters)
{
PRINTF("\n--------------------------- ECSPI Flash Demo ----------------------------\n\n\r");
PRINTF("This demo application demonstrates usage of ECSPI driver based on FreeRTOS.\n\r");
PRINTF("It transfers data to/from external memory over SPI bus.\n\n\r");
PRINTF("Start Flash Memory Operating!\n\r");
/* start SPI serial flash memory operation */
/* Read the flash memory status register */
M25P32_ReadStatus();
/* Disable protection */
M25P32_SetProtection(false);
/* Erase memory before tests, user can erase the memory according to need */
//M25P32_EraseChip();
/* write data to memory */
M25P32_WriteData(SPI_MEMORY_ADDR2, 32, txData);
/* read data from memory */
M25P32_ReadData(SPI_MEMORY_ADDR2, 32, rxData);
PRINTF("Finish Flash Memory Operating!\n\r");
for(;;);
}
/******************************************************************************
*
* Function Name: main
* Comments: main function, MCU configured as master mode, read from and write to
* flash memory with FreeRTOS.
*
******************************************************************************/
int main(void)
{
/* Hardware initialiize, include RDC, CLOCK, IOMUX, ENABLE MODULE */
hardware_init();
/* Ecspi module initialize, include configure parameters */
ecspi_init_config_t ecspiInitConfig = {
.clockRate = get_ecspi_clock_freq(BOARD_ECSPI_BASEADDR),
.baudRate = 500000,
.mode = ecspiMasterMode,
.burstLength = ECSPI_BURSTLENGTH,
.channelSelect = BOARD_ECSPI_CHANNEL,
.clockPhase = ecspiClockPhaseFirstEdge,
.clockPolarity = ecspiClockPolarityActiveHigh,
.ecspiAutoStart = ECSPI_STARTMODE
};
ECSPI_XFER_Config(&ecspiInitConfig);
/* Create two tasks with different priority */
xTaskCreate(vMemoryTask, "memory", configMINIMAL_STACK_SIZE,
NULL, tskIDLE_PRIORITY+1, NULL);
/* Start task schedule */
vTaskStartScheduler();
for(;;);
}
/*******************************************************************************
* EOF
******************************************************************************/
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