mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2025-03-04 19:45:29 +08:00
354 lines
9.7 KiB
C
354 lines
9.7 KiB
C
/*
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* Copyright (c) 2022-2024, Xiaohua Semiconductor Co., Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024-12-30 CDT first version
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*/
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/*
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* 程序清单：这是一个 SPI 设备使用例程
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* 例程导出了 spi_w25q_sample 命令到控制终端
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* 命令调用格式：spi_w25q_sample spi10
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* 命令解释：命令第二个参数是要使用的SPI设备名称，为空则使用默认的SPI设备
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* 程序功能：通过SPI设备读取 w25q 的 ID 数据
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*/
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "board_config.h"
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#include <string.h>
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#if defined(BSP_USING_SPI)
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#include "drv_spi.h"
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#define W25Q_FLAG_BUSY (0x01)
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#define W25Q_WR_ENABLE (0x06)
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#define W25Q_SECTOR_ERASE (0x20)
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#define W25Q_RD_STATUS_REG1 (0x05)
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#define W25Q_PAGE_PROGRAM (0x02)
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#define W25Q_STD_RD (0x03)
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#define W25Q_PAGE_SIZE (256UL)
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#define W25Q_SECTOR_SIZE (1024UL * 4UL)
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#define W25Q_PAGE_PER_SECTOR (W25Q_SECTOR_SIZE / W25Q_PAGE_SIZE)
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#define W25Q_MAX_ADDR (0x800000UL)
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#define W25Q_SPI_WR_RD_ADDR 0x4000
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#define W25Q_SPI_DATA_BUF_LEN 0x2000
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#if defined(HC32F4A0) || defined(HC32F448)
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#define SPI_CS_PORT SPI1_CS_PORT
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#define SPI_CS_PIN SPI1_CS_PIN
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#define SPI_CS_PORT_PIN GET_PIN(C, 7)
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#define W25Q_SPI_BUS_NAME "spi1"
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#define W25Q_SPI_DEVICE_NAME "spi10"
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#elif defined(HC32F472)
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#define SPI_CS_PORT SPI1_CS_PORT
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#define SPI_CS_PIN SPI1_CS_PIN
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#define SPI_CS_PORT_PIN GET_PIN(B, 12)
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#define W25Q_SPI_BUS_NAME "spi1"
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#define W25Q_SPI_DEVICE_NAME "spi10"
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#elif defined(HC32F460)
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#define SPI_CS_PORT SPI3_CS_PORT
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#define SPI_CS_PIN SPI3_CS_PIN
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#define SPI_CS_PORT_PIN GET_PIN(C, 7)
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#define W25Q_SPI_BUS_NAME "spi3"
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#define W25Q_SPI_DEVICE_NAME "spi30"
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#endif
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struct rt_spi_device *spi_dev_w25q; /* SPI 设备句柄 */
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static uint8_t u8WrBuf[W25Q_SPI_DATA_BUF_LEN];
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static uint8_t u8RdBuf[W25Q_SPI_DATA_BUF_LEN];
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static int rt_hw_spi_flash_init(void)
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{
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if (RT_EOK != rt_hw_spi_device_attach(W25Q_SPI_BUS_NAME, W25Q_SPI_DEVICE_NAME, SPI_CS_PORT_PIN))
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{
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rt_kprintf("Failed to attach the spi device.");
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return -RT_ERROR;
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}
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return RT_EOK;
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}
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/* 导出到自动初始化 */
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INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init);
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void w25q_read_uid(struct rt_spi_device *device)
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{
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rt_uint8_t w25x_read_uid = 0x4B; /* 命令 */
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rt_uint8_t u8UID[8] = {0};
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rt_uint8_t txBuf[5] = {0};
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memset(txBuf, 0xFF, 5);
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txBuf[0] = w25x_read_uid;
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/* 方式1：使用 rt_spi_send_then_recv()发送命令读取ID */
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if (RT_EOK != rt_spi_send_then_recv(device, txBuf, 5, u8UID, 8))
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{
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rt_kprintf("spi get uid failed!\n");
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}
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else
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{
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rt_kprintf("w25q UID is: %02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x\r\n",
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u8UID[0], u8UID[1], u8UID[2], u8UID[3], u8UID[4], u8UID[5], u8UID[6], u8UID[7]);
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}
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/* 方式2：使用 rt_spi_transfer_message()发送命令读取ID */
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struct rt_spi_message msg1, msg2;
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msg1.send_buf = txBuf;
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msg1.recv_buf = RT_NULL;
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msg1.length = 5;
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msg1.cs_take = 1;
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msg1.cs_release = 0;
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msg1.next = &msg2;
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msg2.send_buf = RT_NULL;
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msg2.recv_buf = u8UID;
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msg2.length = 8;
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msg2.cs_take = 0;
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msg2.cs_release = 1;
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msg2.next = RT_NULL;
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rt_spi_transfer_message(device, &msg1);
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rt_kprintf("use rt_spi_transfer_message() read w25q ID is: UID is: %02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x\r\n",
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u8UID[0], u8UID[1], u8UID[2], u8UID[3], u8UID[4], u8UID[5], u8UID[6], u8UID[7]);
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}
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int32_t w25q_check_process_done(struct rt_spi_device *device, uint32_t u32Timeout)
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{
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__IO uint32_t u32Count = 0U;
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int32_t i32Ret = LL_ERR_TIMEOUT;
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rt_uint8_t rxBuf[5] = {0};
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rt_uint8_t txBuf[5] = {0};
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txBuf[0] = W25Q_RD_STATUS_REG1;
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while (u32Count < u32Timeout)
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{
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if (RT_EOK != rt_spi_send_then_recv(device, txBuf, 1, rxBuf, 1))
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{
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rt_kprintf("spi get SR failed!\n");
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}
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else
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{
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if (W25Q_FLAG_BUSY != (rxBuf[0] & W25Q_FLAG_BUSY))
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{
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i32Ret = LL_OK;
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break;
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}
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}
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rt_thread_mdelay(1);
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u32Count++;
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}
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return i32Ret;
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}
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int32_t w25q_read_data(struct rt_spi_device *device, uint32_t u32Addr, uint8_t *pu8ReadBuf, uint32_t u32Size)
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{
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int32_t i32Ret = LL_OK;
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rt_uint8_t txBuf[5] = {0};
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txBuf[0] = W25Q_STD_RD;
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txBuf[1] = (u32Addr >> 16) & 0xFFU;
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txBuf[2] = (u32Addr >> 8) & 0xFFU;
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txBuf[3] = u32Addr & 0xFFU;
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if (RT_EOK != rt_spi_send_then_recv(device, txBuf, 4, pu8ReadBuf, u32Size))
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{
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i32Ret = LL_ERR;
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}
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return i32Ret;
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}
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int32_t w25q_write_data(struct rt_spi_device *device, uint32_t u32Addr, uint8_t *pu8WriteBuf, uint32_t u32Size)
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{
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int32_t i32Ret = LL_OK;
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uint32_t u32TempSize, u32AddrOffset = 0U;
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uint8_t w25q_txBuf[W25Q_PAGE_SIZE + 10];
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if ((u32Addr % W25Q_PAGE_SIZE) != 0U)
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{
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return LL_ERR_INVD_PARAM;
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}
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while (u32Size != 0UL)
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{
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if (u32Size >= W25Q_PAGE_SIZE)
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{
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u32TempSize = W25Q_PAGE_SIZE;
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}
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else
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{
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u32TempSize = u32Size;
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}
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w25q_txBuf[0] = W25Q_WR_ENABLE;
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if (1 != rt_spi_send(device, w25q_txBuf, 1))
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{
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rt_kprintf("spi send cmd failed!\n");
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}
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w25q_txBuf[0] = W25Q_PAGE_PROGRAM;
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w25q_txBuf[1] = (u32Addr >> 16) & 0xFFU;
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w25q_txBuf[2] = (u32Addr >> 8) & 0xFFU;
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w25q_txBuf[3] = u32Addr & 0xFFU;
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memcpy(&w25q_txBuf[4], &pu8WriteBuf[u32AddrOffset], u32TempSize);
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if ((u32TempSize + 4) != rt_spi_send(device, w25q_txBuf, u32TempSize + 4))
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{
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rt_kprintf("spi send addr failed!\n");
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}
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i32Ret = w25q_check_process_done(device, 500U);
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if (i32Ret != LL_OK)
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{
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break;
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}
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u32Addr += u32TempSize;
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u32AddrOffset += u32TempSize;
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u32Size -= u32TempSize;
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}
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return i32Ret;
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}
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int32_t w25q_erase_sector(struct rt_spi_device *device, uint32_t u32Addr, uint32_t u32Size)
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{
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uint8_t txBuf[10];
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uint32_t u32SectorNum, u32Cnt;
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int32_t i32Ret = LL_OK;
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if ((u32Addr % W25Q_SECTOR_SIZE) != 0U)
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{
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return LL_ERR_INVD_PARAM;
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}
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u32SectorNum = u32Size / W25Q_SECTOR_SIZE;
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if ((u32Size % W25Q_SECTOR_SIZE) != 0U)
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{
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u32SectorNum += 1;
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}
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for (u32Cnt = 0; u32Cnt < u32SectorNum; u32Cnt++)
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{
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txBuf[0] = W25Q_WR_ENABLE;
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if (1 != rt_spi_send(device, txBuf, 1))
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{
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rt_kprintf("spi send cmd failed!\n");
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}
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txBuf[0] = W25Q_SECTOR_ERASE;
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txBuf[1] = (u32Addr >> 16) & 0xFFU;
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txBuf[2] = (u32Addr >> 8) & 0xFFU;
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txBuf[3] = u32Addr & 0xFFU;
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if (4 != rt_spi_send(device, txBuf, 4))
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{
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rt_kprintf("spi send addr failed!\n");
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}
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if (LL_OK != w25q_check_process_done(device, 500U))
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{
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i32Ret = LL_ERR;
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break;
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}
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u32Addr += W25Q_SECTOR_SIZE;
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}
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return i32Ret;
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}
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void w25q_write_read_data(struct rt_spi_device *device, uint32_t u32Addr)
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{
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uint32_t u32Cnt;
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for (u32Cnt = 0; u32Cnt < W25Q_SPI_DATA_BUF_LEN; u32Cnt++)
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{
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u8WrBuf[u32Cnt] = u32Cnt & 0xFFUL;
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u8RdBuf[u32Cnt] = 0U;
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}
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if (LL_OK != w25q_erase_sector(device, u32Addr, W25Q_SPI_DATA_BUF_LEN))
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{
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rt_kprintf("spi erase sector failed!\n");
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}
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if (LL_OK != w25q_write_data(device, u32Addr, u8WrBuf, W25Q_SPI_DATA_BUF_LEN))
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{
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rt_kprintf("spi write data failed!\n");
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}
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if (LL_OK != w25q_read_data(device, u32Addr, u8RdBuf, W25Q_SPI_DATA_BUF_LEN))
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{
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rt_kprintf("spi read data failed!\n");
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}
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if (memcmp(u8WrBuf, u8RdBuf, W25Q_SPI_DATA_BUF_LEN) == 0)
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{
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rt_kprintf("spi write and read test ok! addr=%06x\n", u32Addr);
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}
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else
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{
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rt_kprintf("spi write and read failed!\n");
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}
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}
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static void spi_thread_entry(void *parameter)
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{
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uint32_t u32Addr = W25Q_SPI_WR_RD_ADDR;
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struct rt_spi_configuration cfg;
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cfg.data_width = 8;
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cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB;
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cfg.max_hz = 80 * 1000 * 1000; /* 80M */
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rt_spi_configure(spi_dev_w25q, &cfg);
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/* 读取UID */
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w25q_read_uid(spi_dev_w25q);
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while (1)
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{
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/* 读写对比数据 */
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w25q_write_read_data(spi_dev_w25q, u32Addr);
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u32Addr += W25Q_SPI_DATA_BUF_LEN;
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if (u32Addr >= (W25Q_MAX_ADDR - W25Q_SPI_DATA_BUF_LEN))
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{
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u32Addr = W25Q_SPI_WR_RD_ADDR;
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}
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rt_thread_mdelay(500);
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}
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}
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static void spi_w25q_sample(int argc, char *argv[])
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{
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char name[RT_NAME_MAX];
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if (argc == 2)
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{
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rt_strncpy(name, argv[1], RT_NAME_MAX);
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}
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else
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{
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rt_strncpy(name, W25Q_SPI_DEVICE_NAME, RT_NAME_MAX);
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}
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/* 查找 spi 设备获取设备句柄 */
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spi_dev_w25q = (struct rt_spi_device *)rt_device_find(name);
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if (!spi_dev_w25q)
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{
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rt_kprintf("spi sample run failed! can't find %s device!\n", name);
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}
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else
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{
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/* 创建 线程 */
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rt_thread_t thread = rt_thread_create("spi", spi_thread_entry, RT_NULL, 2048, 15, 10);
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/* 创建成功则启动线程 */
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if (thread != RT_NULL)
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{
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rt_thread_startup(thread);
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}
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}
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}
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/* 导出到 msh 命令列表中 */
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MSH_CMD_EXPORT(spi_w25q_sample, spi w25q sample);
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#endif
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