625 lines
18 KiB
C
625 lines
18 KiB
C
/*
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* 模块名称：GD5F2GQ5UE SPI NAND Flash 驱动
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* 模块功能：提<EFBC9A>?GD5F2GQ5UE SPI NAND Flash 的初始化、读、写、擦除接<E999A4>? * 适用平台：STM32F407ZGT6 + SPI1 硬件 SPI
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* 作者：王建<E78E8B>? * 创建日期<E697A5>?026-07-16
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* 修改记录<E8AEB0>? * 2026-07-16 王建<E78E8B>? 创建初始版本
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* 2026-07-17 王建<E78E8B>? 切换硬件 SPI，修正擦除地址，参<EFBC8C>?NuttX 驱动
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*/
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/* 头文件包含区 */
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#include <string.h>
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#include "gd5f2gq5ue.h"
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/*
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* 调试输出配置
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*/
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#define DBG_TAG "[NAND]"
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#include "dbg_log.h"
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/* 私有宏定义区 */
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#define GD5F_SPI_TIMEOUT 100
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#define GD5F_BBT_SIZE (GD5F_TOTAL_BLOCKS / 8)
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/* BBT 静态数组（1 bit 表示一个块，0=好块 1=坏块） */
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static uint8_t s_bbt[GD5F_BBT_SIZE];
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/* 外部 SPI 句柄声明 */
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extern SPI_HandleTypeDef hspi1;
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/* DMA 完成标志（ch395f.c 中的 HAL_SPI_TxRxCpltCallback 会设置此标志） */
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volatile uint8_t g_spi1_dma_done;
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/* DMA 阈值（字节数超过此值使用 DMA 传输） */
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#define GD5F_DMA_THRESHOLD 32
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/*
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* 函数功能：SPI1 TX DMA 完成回调（PROGRAM_LOAD 数据发送用）
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*/
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void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi) {
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if (hspi->Instance == SPI1) {
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g_spi1_dma_done = 1U;
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}
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}
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/*
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* 函数功能：SPI1 RX DMA 完成回调（READ_FROM_CACHE 数据接收用）
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* 函数说明：HAL_SPI_Receive_DMA() 在 2 线 master 模式下
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* 内部走 HAL_SPI_TransmitReceive_DMA 但 state=BUSY_RX，
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* 完成回调是 HAL_SPI_RxCpltCallback 而非 TxRxCpltCallback
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*/
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void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi) {
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if (hspi->Instance == SPI1) {
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g_spi1_dma_done = 1U;
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}
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}
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/* ======================== 私有函数声明 ======================== */
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static int gd5f_page_program(uint32_t page_addr, uint16_t column,
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const uint8_t *p_buf, size_t size);
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static int gd5f_set_feature(uint8_t addr, uint8_t data);
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/* ======================== SPI 原语定义 ======================== */
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/*
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* 函数功能：等待芯片操作完成（轮询 OIP 位）
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* 入口参数：timeout_ms - 超时时间 uint32_t > 0
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* 返回值：0 - 操作完成，-2 - 超时
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* 限定条件：SPI 已初始化
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* 函数说明：循环读取状态寄存器直到 OIP 位清零或超时
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*/
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int gd5f_wait_busy(uint32_t timeout_ms) {
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uint8_t cmd = GD5F_CMD_GET_FEATURE;
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uint8_t addr = GD5F_REG_STATUS;
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uint8_t status = 0;
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uint32_t tick_start = HAL_GetTick();
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while (1) {
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, &cmd, 1, GD5F_SPI_TIMEOUT);
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HAL_SPI_Transmit(&hspi1, &addr, 1, GD5F_SPI_TIMEOUT);
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HAL_SPI_Receive(&hspi1, &status, 1, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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if ((status & GD5F_STATUS_OIP) == 0) {
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return GD5F_OK;
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}
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if ((HAL_GetTick() - tick_start) >= timeout_ms) {
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return GD5F_BUSY_TIMEOUT;
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}
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}
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}
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/*
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* 函数功能：发送写使能命令
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* 入口参数：无
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* 返回值：0 - 成功
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* 限定条件：SPI 已初始化
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* 函数说明：CS# 拉低后发<E5908E>?06h 命令再拉<E5868D>? */
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int gd5f_write_enable(void) {
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uint8_t cmd = GD5F_CMD_WRITE_ENABLE;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, &cmd, 1, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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return GD5F_OK;
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}
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/*
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* 函数功能：读取状态寄存器
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* 入口参数：p_status - 状态值输出指<E587BA>? uint8_t* 不为 NULL
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* 返回值：0 - 成功
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* 限定条件：SPI 已初始化
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* 函数说明：发<EFBC9A>?0Fh + C0h 地址后读<E5908E>?字节状态<E78AB6>? */
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int gd5f_read_status(uint8_t *p_status) {
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uint8_t cmd = GD5F_CMD_GET_FEATURE;
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uint8_t addr = GD5F_REG_STATUS;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, &cmd, 1, GD5F_SPI_TIMEOUT);
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HAL_SPI_Transmit(&hspi1, &addr, 1, GD5F_SPI_TIMEOUT);
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HAL_SPI_Receive(&hspi1, p_status, 1, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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return GD5F_OK;
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}
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/*
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* 函数功能：页读取（将数据从存储阵列加载到内部缓存<E7BC93>? * 入口参数：page_addr - 页地址 uint32_t
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* 返回值：0 - 成功，其<EFBC8C>?- 错误<E99499>? * 限定条件：SPI 已初始化
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* 函数说明：发<EFBC9A>?13h + 3字节行地址，等<EFBC8C>?OIP 清零
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*/
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int gd5f_page_read(uint32_t page_addr) {
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uint8_t cmd[4] = {0};
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cmd[0] = GD5F_CMD_PAGE_READ;
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cmd[1] = (page_addr >> 16) & 0xFF;
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cmd[2] = (page_addr >> 8) & 0xFF;
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cmd[3] = page_addr & 0xFF;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, cmd, 4, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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return gd5f_wait_busy(100);
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}
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/*
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* 函数功能：从内部缓存读取数据
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* 入口参数：column - 列地址（页内偏移） uint16_t 0 - 2047
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* p_buf - 数据输出缓冲<E7BC93>? uint8_t* 不为 NULL
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* size - 读取字节<E5AD97>? size_t > 0
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* 返回值：0 - 成功
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* 限定条件：必须先调用 gd5f_page_read 完成数据加载
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* 函数说明：发<EFBC9A>?0Bh + 2字节列地址 +1字节 dummy 后读取数<E58F96>? */
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int gd5f_read_from_cache(uint16_t column, uint8_t *p_buf,
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size_t size) {
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uint8_t cmd[4] = {0};
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cmd[0] = GD5F_CMD_READ_FROM_CACHE;
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cmd[1] = (column >> 8) & 0xFF;
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cmd[2] = column & 0xFF;
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cmd[3] = 0x00;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, cmd, 4, GD5F_SPI_TIMEOUT);
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if (size > GD5F_DMA_THRESHOLD) {
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uint32_t tick_start = HAL_GetTick();
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g_spi1_dma_done = 0U;
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if (HAL_SPI_Receive_DMA(&hspi1, p_buf, (uint16_t)size) != HAL_OK) {
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GD5F_CS_HIGH();
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return GD5F_ERROR;
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}
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while (g_spi1_dma_done == 0U) {
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if ((HAL_GetTick() - tick_start) >= GD5F_SPI_TIMEOUT) {
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HAL_SPI_DMAStop(&hspi1);
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GD5F_CS_HIGH();
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return GD5F_BUSY_TIMEOUT;
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}
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}
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} else {
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HAL_SPI_Receive(&hspi1, p_buf, size, GD5F_SPI_TIMEOUT);
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}
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GD5F_CS_HIGH();
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return GD5F_OK;
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}
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/*
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* 函数功能：页编程（将数据写入指定页）
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* 入口参数：page_addr - 页地址 uint32_t
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* column - 列地址 uint16_t 0 - 2047
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* p_buf - 数据缓冲<E7BC93>? const uint8_t*
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* size - 写入字节<E5AD97>? size_t > 0
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* 返回值：0 - 成功，其<EFBC8C>?- 错误<E99499>? * 限定条件：目标区域已擦除
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* 函数说明<E8AFB4>?. 写使<E58699>?- 02h 加载数据 - 10h 执行编程 - 等待完成
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* 2. 编程完成后检<E5908E>?P_FAIL <20>? */
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static int gd5f_page_program(uint32_t page_addr, uint16_t column,
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const uint8_t *p_buf, size_t size) {
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int ret;
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gd5f_write_enable();
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ret = gd5f_program_load(column, p_buf, size);
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if (ret != GD5F_OK) return ret;
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return gd5f_program_exec(page_addr);
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}
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int gd5f_program_load(uint16_t column, const uint8_t *p_buf, size_t size) {
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uint8_t cmd[3];
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cmd[0] = GD5F_CMD_PROGRAM_LOAD;
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cmd[1] = (uint8_t)(column >> 8);
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cmd[2] = (uint8_t)(column);
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, cmd, 3, GD5F_SPI_TIMEOUT);
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if (size > GD5F_DMA_THRESHOLD) {
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uint32_t tick_start = HAL_GetTick();
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g_spi1_dma_done = 0U;
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if (HAL_SPI_Transmit_DMA(&hspi1, (uint8_t *)p_buf, (uint16_t)size)
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!= HAL_OK) {
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GD5F_CS_HIGH();
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return GD5F_ERROR;
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}
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while (g_spi1_dma_done == 0U) {
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if ((HAL_GetTick() - tick_start) >= GD5F_SPI_TIMEOUT) {
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HAL_SPI_DMAStop(&hspi1);
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GD5F_CS_HIGH();
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return GD5F_BUSY_TIMEOUT;
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}
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}
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} else {
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HAL_SPI_Transmit(&hspi1, (uint8_t *)p_buf, size, GD5F_SPI_TIMEOUT);
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}
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GD5F_CS_HIGH();
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return GD5F_OK;
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}
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int gd5f_program_exec(uint32_t page_addr) {
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int ret;
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uint8_t cmd[4];
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uint8_t status;
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cmd[0] = GD5F_CMD_PROGRAM_EXEC;
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cmd[1] = (page_addr >> 16) & 0xFF;
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cmd[2] = (page_addr >> 8) & 0xFF;
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cmd[3] = page_addr & 0xFF;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, cmd, 4, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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ret = gd5f_wait_busy(1000);
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if (ret != GD5F_OK) return ret;
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gd5f_read_status(&status);
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if (status & GD5F_STATUS_P_FAIL) return GD5F_PROGRAM_FAIL;
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return GD5F_OK;
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}
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int gd5f_check_ecc(void) {
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uint8_t status;
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gd5f_read_status(&status);
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uint8_t ecc = (status >> 4) & 0x03;
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if (ecc == 0x02) return GD5F_ECC_ERROR;
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return GD5F_OK;
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}
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/*
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* 函数功能：设<EFBC9A>?Feature 寄存<E5AF84>? * 入口参数：addr - 寄存器地址 uint8_t
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* data - 写入数据 uint8_t
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* 返回值：0 - 成功
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* 限定条件：SPI 已初始化
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* 函数说明：先写使能，发<EFBC8C>?1Fh + 地址 + 数据，等待操作完<E4BD9C>? */
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static int gd5f_set_feature(uint8_t addr, uint8_t data) {
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uint8_t cmd[3];
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gd5f_write_enable();
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cmd[0] = GD5F_CMD_SET_FEATURE;
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cmd[1] = addr;
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cmd[2] = data;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, cmd, 3, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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gd5f_wait_busy(100);
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return GD5F_OK;
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}
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/*
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* 函数功能：块擦除（擦除128KB块）
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* 入口参数：block_addr - 块编号 uint32_t 0 - 2047
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* 返回值：0 - 成功，其他 - 错误码
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* 限定条件：gd5f2gq5ue_init() 已调用
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* 函数说明：1. 写使能 - D8h + 3字节页地址 - 等待完成
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* 2. 擦除完成后检查 E_FAIL */
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int gd5f_block_erase(uint32_t block_addr) {
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int ret = GD5F_OK;
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uint8_t cmd[4];
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uint8_t status = 0;
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uint32_t page_addr = block_addr * GD5F_PAGES_PER_BLOCK;
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gd5f_write_enable();
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cmd[0] = GD5F_CMD_BLOCK_ERASE;
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cmd[1] = (page_addr >> 16) & 0xFF;
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cmd[2] = (page_addr >> 8) & 0xFF;
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cmd[3] = page_addr & 0xFF;
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GD5F_CS_LOW();
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HAL_SPI_Transmit(&hspi1, cmd, 4, GD5F_SPI_TIMEOUT);
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GD5F_CS_HIGH();
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ret = gd5f_wait_busy(5000);
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if (ret != GD5F_OK) {
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return ret;
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}
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gd5f_read_status(&status);
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if (status & GD5F_STATUS_E_FAIL) {
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return GD5F_ERASE_FAIL;
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}
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return GD5F_OK;
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}
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/*
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* 函数功能：扫描所有块构建 BBT（在 ECC 使能前调用）
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* 入口参数：无
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* 返回值：0 - 成功
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* 限定条件：SPI 已初始化，ECC 尚未使能
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* 函数说明：读取每个块最后一页（page 63）的 spare byte 0，
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* 若不为 0xFF 则为出厂坏块
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*/
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static int gd5f_bbt_scan(void) {
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uint32_t block;
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uint8_t spare[8];
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uint32_t bad_count = 0;
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memset(s_bbt, 0, GD5F_BBT_SIZE);
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for (block = 0; block < GD5F_TOTAL_BLOCKS; block++) {
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uint32_t page = (block << 6) | 63;
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gd5f_page_read(page);
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gd5f_read_from_cache(GD5F_PAGE_SIZE, spare, 1);
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if (spare[0] != 0xFF) {
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s_bbt[block >> 3] |= (1 << (block & 7));
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bad_count++;
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}
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}
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DBG_INFO("BBT scan: %lu bad blocks found", bad_count);
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return GD5F_OK;
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}
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void gd5f2gq5ue_bbt_rescan(void) {
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uint32_t blk;
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uint8_t spare[64];
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memset(s_bbt, 0, GD5F_BBT_SIZE);
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for (blk = 0; blk < GD5F_TOTAL_BLOCKS; blk++) {
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uint32_t page = (blk << 6) | 63;
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gd5f_page_read(page);
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gd5f_read_from_cache(GD5F_PAGE_SIZE, spare, sizeof(spare));
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if (spare[0] != 0xFF) {
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s_bbt[blk >> 3] |= (1 << (blk & 7));
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}
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}
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}
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void gd5f2gq5ue_bbt_clear(void) {
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memset(s_bbt, 0, GD5F_BBT_SIZE);
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}
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void gd5f2gq5ue_print_bbt(void) {
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uint32_t bad_count = 0;
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for (uint32_t b = 0; b < GD5F_TOTAL_BLOCKS; b++) {
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if ((s_bbt[b >> 3] >> (b & 7)) & 1) bad_count++;
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}
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DBG_INFO("BBT: %lu/%lu blocks bad", bad_count, GD5F_TOTAL_BLOCKS);
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if (bad_count > 0) {
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uint32_t shown = 0;
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for (uint32_t b = 0; b < GD5F_TOTAL_BLOCKS && shown < 32; b++) {
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if ((s_bbt[b >> 3] >> (b & 7)) & 1) {
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DBG_INFO(" block %lu (offset 0x%08lX)", b, b * GD5F_BLOCK_SIZE);
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shown++;
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}
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}
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if (bad_count > 32) DBG_INFO(" ... and %lu more", bad_count - 32);
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}
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}
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/* ======================== 公共函数定义 ======================== */
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/*
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* 函数功能：初始化 GD5F2GQ5UE
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* 入口参数：无
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* 返回值：0 - 成功，其他 - 错误码
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* 限定条件：SPI1 和相关 GPIO 已由 CubeMX 初始化完成
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* 函数说明：1. 发送复位命令并等待完成
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* 2. 读取芯片 ID 并校验
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* 3. 扫描出厂坏块构建 BBT（ECC 使能前）
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* 4. 使能内部 ECC (B0h bit4)
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* 5. 解除所有块保护 (A0h = 0x00)
|
||
*/
|
||
int gd5f2gq5ue_init(void) {
|
||
int ret = GD5F_OK;
|
||
uint8_t mid = 0;
|
||
uint8_t did = 0;
|
||
|
||
GD5F_CS_HIGH();
|
||
GD5F_WP_HIGH();
|
||
GD5F_HOLD_HIGH();
|
||
|
||
HAL_Delay(10);
|
||
|
||
DBG_INFO("Resetting NAND...");
|
||
ret = gd5f2gq5ue_reset();
|
||
if (ret != GD5F_OK) {
|
||
DBG_ERROR("Reset failed: %d", ret);
|
||
return ret;
|
||
}
|
||
|
||
HAL_Delay(5);
|
||
|
||
DBG_INFO("Reading NAND ID...");
|
||
ret = gd5f2gq5ue_read_id(&mid, &did);
|
||
if (ret != GD5F_OK) {
|
||
DBG_ERROR("Read ID failed: %d", ret);
|
||
return ret;
|
||
}
|
||
|
||
DBG_INFO("NAND ID: MID=0x%02X, DID=0x%02X", mid, did);
|
||
|
||
if (mid != GD5F_MANUFACTURER_ID || did != GD5F_DEVICE_ID) {
|
||
DBG_ERROR("ID mismatch: expected MID=0x%02X DID=0x%02X, got MID=0x%02X DID=0x%02X",
|
||
GD5F_MANUFACTURER_ID, GD5F_DEVICE_ID, mid, did);
|
||
return GD5F_ID_MISMATCH;
|
||
}
|
||
|
||
DBG_INFO("Scanning bad blocks...");
|
||
gd5f_bbt_scan();
|
||
|
||
DBG_INFO("Enabling ECC...");
|
||
gd5f_set_feature(0xB0, 0x10);
|
||
gd5f_wait_busy(100);
|
||
|
||
DBG_INFO("Unlocking block protection...");
|
||
gd5f_set_feature(GD5F_REG_PROTECT, 0x00);
|
||
gd5f_wait_busy(100);
|
||
|
||
DBG_INFO("NAND init OK");
|
||
return GD5F_OK;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：读取芯<E58F96>?ID（MID + DID<49>? * 入口参数：mid - 制造商 ID 输出指针 uint8_t* 不为 NULL
|
||
* did - 设备 ID 输出指针 uint8_t* 不为 NULL
|
||
* 返回值：0 - 成功
|
||
* 限定条件：SPI 已初始化
|
||
* 函数说明：发<EFBC9A>?9Fh 命令后接<E5908E>?<3F>?dummy + MID + DID
|
||
*/
|
||
int gd5f2gq5ue_read_id(uint8_t *p_mid, uint8_t *p_did) {
|
||
uint8_t cmd = GD5F_CMD_READ_ID;
|
||
uint8_t id_buf[3] = {0};
|
||
|
||
GD5F_CS_LOW();
|
||
HAL_SPI_Transmit(&hspi1, &cmd, 1, GD5F_SPI_TIMEOUT);
|
||
HAL_SPI_Receive(&hspi1, id_buf, 3, GD5F_SPI_TIMEOUT);
|
||
GD5F_CS_HIGH();
|
||
|
||
*p_mid = id_buf[1];
|
||
*p_did = id_buf[2];
|
||
|
||
return GD5F_OK;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：从 NAND 读取数据（支持跨页）
|
||
* 入口参数：offset - 起始字节偏移 long 0 ~ 总容<E680BB>?1
|
||
* p_buf - 数据缓冲<E7BC93>? uint8_t* 不为 NULL
|
||
* size - 读取字节<E5AD97>? size_t > 0
|
||
* 返回值：0 - 成功，其<EFBC8C>?- 错误<E99499>? * 限定条件：gd5f2gq5ue_init() 已成功调<E58A9F>? * 函数说明：自动处理跨页读<E9A1B5>? */
|
||
int gd5f2gq5ue_read(long offset, uint8_t *p_buf, size_t size) {
|
||
int ret = GD5F_OK;
|
||
|
||
while (size > 0) {
|
||
uint32_t page_addr = offset / GD5F_PAGE_SIZE;
|
||
uint16_t column = offset % GD5F_PAGE_SIZE;
|
||
size_t bytes = GD5F_PAGE_SIZE - column;
|
||
|
||
if (bytes > size) {
|
||
bytes = size;
|
||
}
|
||
|
||
ret = gd5f_page_read(page_addr);
|
||
if (ret != GD5F_OK) {
|
||
return ret;
|
||
}
|
||
|
||
ret = gd5f_read_from_cache(column, p_buf, bytes);
|
||
if (ret != GD5F_OK) {
|
||
return ret;
|
||
}
|
||
|
||
offset += bytes;
|
||
p_buf += bytes;
|
||
size -= bytes;
|
||
}
|
||
|
||
return GD5F_OK;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：向 NAND 写入数据（支持跨页）
|
||
* 入口参数：offset - 起始字节偏移 long 0 ~ 总容<E680BB>?1
|
||
* p_buf - 数据缓冲<E7BC93>? const uint8_t* 不为 NULL
|
||
* size - 写入字节<E5AD97>? size_t > 0
|
||
* 返回值：0 - 成功，其<EFBC8C>?- 错误<E99499>? * 限定条件：gd5f2gq5ue_init() 已成功调用，目标区域已擦<E5B7B2>? * 函数说明：自动处理跨页写<E9A1B5>? */
|
||
int gd5f2gq5ue_write(long offset, const uint8_t *p_buf, size_t size) {
|
||
int ret = GD5F_OK;
|
||
|
||
while (size > 0) {
|
||
uint32_t page_addr = offset / GD5F_PAGE_SIZE;
|
||
uint16_t column = offset % GD5F_PAGE_SIZE;
|
||
size_t bytes = GD5F_PAGE_SIZE - column;
|
||
|
||
if (bytes > size) {
|
||
bytes = size;
|
||
}
|
||
|
||
ret = gd5f_page_program(page_addr, column, p_buf, bytes);
|
||
if (ret != GD5F_OK) {
|
||
return ret;
|
||
}
|
||
|
||
offset += bytes;
|
||
p_buf += bytes;
|
||
size -= bytes;
|
||
}
|
||
|
||
return GD5F_OK;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：擦除块（按块擦除，最小单<E5B08F>?128KB<4B>? * 入口参数：offset - 起始字节偏移 long 必须块对<E59D97>? * size - 擦除字节<E5AD97>? size_t 必须块大小整数<E695B4>? * 返回值：0 - 成功，其<EFBC8C>?- 错误<E99499>? * 限定条件：gd5f2gq5ue_init() 已成功调<E58A9F>? * 函数说明：擦除操作以块为单位
|
||
*/
|
||
int gd5f2gq5ue_erase(long offset, size_t size) {
|
||
int ret = GD5F_OK;
|
||
|
||
if (offset % GD5F_BLOCK_SIZE != 0) {
|
||
return GD5F_ERROR;
|
||
}
|
||
if (size % GD5F_BLOCK_SIZE != 0) {
|
||
return GD5F_ERROR;
|
||
}
|
||
|
||
while (size > 0) {
|
||
uint32_t block_addr = offset / GD5F_BLOCK_SIZE;
|
||
|
||
ret = gd5f_block_erase(block_addr);
|
||
if (ret != GD5F_OK) {
|
||
return ret;
|
||
}
|
||
|
||
offset += GD5F_BLOCK_SIZE;
|
||
size -= GD5F_BLOCK_SIZE;
|
||
}
|
||
|
||
return GD5F_OK;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：复位芯<E4BD8D>? * 入口参数：无
|
||
* 返回值：0 - 成功
|
||
* 限定条件：SPI 已初始化
|
||
* 函数说明：发<EFBC9A>?FFh 复位命令后等<E5908E>?5ms
|
||
*/
|
||
int gd5f2gq5ue_reset(void) {
|
||
uint8_t cmd = GD5F_CMD_RESET;
|
||
|
||
GD5F_CS_LOW();
|
||
HAL_SPI_Transmit(&hspi1, &cmd, 1, GD5F_SPI_TIMEOUT);
|
||
GD5F_CS_HIGH();
|
||
|
||
HAL_Delay(5);
|
||
|
||
return GD5F_OK;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：查询块是否坏块
|
||
* 入口参数：block - 块编号 uint32_t 0 ~ GD5F_TOTAL_BLOCKS-1
|
||
* 返回值：0 - 好块，1 - 坏块
|
||
* 限定条件：gd5f2gq5ue_init() 已成功调用
|
||
* 函数说明：通过 BBT 查询
|
||
*/
|
||
int gd5f2gq5ue_is_block_bad(uint32_t block) {
|
||
if (block >= GD5F_TOTAL_BLOCKS) {
|
||
return 1;
|
||
}
|
||
return (s_bbt[block >> 3] >> (block & 7)) & 1;
|
||
}
|
||
|
||
/*
|
||
* 函数功能：标记块为坏块
|
||
* 入口参数：block - 块编号 uint32_t 0 ~ GD5F_TOTAL_BLOCKS-1
|
||
* 返回值：无
|
||
* 限定条件：gd5f2gq5ue_init() 已成功调用
|
||
* 函数说明：更新 BBT
|
||
*/
|
||
void gd5f2gq5ue_mark_block_bad(uint32_t block) {
|
||
if (block >= GD5F_TOTAL_BLOCKS) {
|
||
return;
|
||
}
|
||
s_bbt[block >> 3] |= (1 << (block & 7));
|
||
}
|
||
|