外挂W25Q128 easyflash初始化错误

发布于 2020-03-17 16:18:45 浏览：2367 订阅该版

芯片是stm32f103，基本是按照这篇帖子操作的：[https://www.rt-thread.org/qa/forum.php?mod=viewthread&tid=423771&highlight=sfud](https://www.rt-thread.org/qa/forum.php?mod=viewthread&tid=423771&highlight=sfud)
之后有一个很奇怪的现象
程序第一次启动之后会打印这条log:
[Flash] Warning: Sector header check failed. Format this sector (0x00000000).
但是芯片reset之后再启动会打印这条log，然后在读flash时死机:
[Flash] Warning: Sector header check failed. Format this sector (0x00000800).
之后每次reset会在这两种情况中循环，一次0x00000000，0x00000800。
这是spi初始化代码，其中PA4是NSS，PC4是nRST，PC5是nWP：
```void HAL_SPI_MspInit(SPI_HandleTypeDef* hspi)
{
GPIO_InitTypeDef GPIO_InitStruct = { 0 };
if (hspi->Instance == SPI1)
{
    __HAL_RCC_SPI1_CLK_ENABLE()
    ;

__HAL_RCC_GPIOA_CLK_ENABLE()
    ;
    __HAL_RCC_GPIOC_CLK_ENABLE()
    ;
    /**SPI1 GPIO Configuration
     PA5     ------> SPI1_SCK
     PA6     ------> SPI1_MISO
     PA7     ------> SPI1_MOSI
     */
    GPIO_InitStruct.Pin = GPIO_PIN_5 | GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

GPIO_InitStruct.Pin = GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

/*Configure GPIO pins : PC4 PC5 */
    GPIO_InitStruct.Pin = GPIO_PIN_4;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
    HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, GPIO_PIN_RESET);

/*Configure GPIO pins : PC4 PC5 */
    GPIO_InitStruct.Pin = GPIO_PIN_4 | GPIO_PIN_5;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
    HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4 | GPIO_PIN_5, GPIO_PIN_SET);
}

}```这是flash初始化代码：
```int ef_init(void)
{
    __HAL_RCC_GPIOA_CLK_ENABLE()
    ;
    rt_hw_spi_device_attach("spi1", "spi10", GPIOA, GPIO_PIN_4);
    if (RT_NULL == rt_sfud_flash_probe(FAL_USING_NOR_FLASH_DEV_NAME, "spi10"))
    {
        return -RT_ERROR;
    };

fal_init();
    if (easyflash_init() == EF_NO_ERR)
    {
        return RT_EOK;
    }
    else
    {
        return RT_ERROR;
    }
}

INIT_DEVICE_EXPORT(ef_init);```这是分区表：
```#ifndef _FAL_CFG_H_
#define _FAL_CFG_H_

#include <rtconfig.h>
#include <board.h>

#define NOR_FLASH_DEV_NAME             "norflash0"

/* ===================== Flash device Configuration ========================= */
extern const struct fal_flash_dev stm32_onchip_flash;
extern struct fal_flash_dev nor_flash0;

/* flash device table */
#define FAL_FLASH_DEV_TABLE                                          \
{                                                                    \
    &stm32_onchip_flash,                                             \
    &nor_flash0,                                                     \
}
/* ====================== Partition Configuration ========================== */
#ifdef FAL_PART_HAS_TABLE_CFG
/* partition table */
#define FAL_PART_TABLE                                                               \
{                                                                                    \
    {FAL_PART_MAGIC_WORD, "app", "onchip_flash", 0,  256*1024, 0}, \
    {FAL_PART_MAGIC_WORD, "easyflash", NOR_FLASH_DEV_NAME, 0, 1024*1024, 0}, \
}
#endif /* FAL_PART_HAS_TABLE_CFG */

#endif /* _FAL_CFG_H_ */```