营销型网站建设公司哪家好,品牌建设文案,seo产品是什么意思,成都装修公司推荐我们要在rtthread studio 开发环境中建立stm32h743xih6芯片的工程。我们使用一块stm32h743及fpga的核心板完成相关实验#xff0c;核心板如图#xff1a; 1.建立新工程#xff0c;选择相应的芯片型号及debug引脚及调试器 2.编译下载#xff0c;可以看到串口打印正常 3.…我们要在rtthread studio 开发环境中建立stm32h743xih6芯片的工程。我们使用一块stm32h743及fpga的核心板完成相关实验核心板如图 1.建立新工程选择相应的芯片型号及debug引脚及调试器 2.编译下载可以看到串口打印正常 3.在工程中打开cubemx设置串口及时钟设置内容如上一章节spi的管脚设置需要参考原理图。 4.打开drv_clk.c更改调试级别后编译下载可以看到打印时钟信息。 5.打开软件包中心打开spi和sfud框架如图 6.保存后在board.h中打开spi注册如图 7.编译下载发送list device指令查询下设备如图可以看到有spi设备了 8.在applications文件夹下添加程序,注意flash片选脚为G10. 这里需要修改为片选引脚 代码如下
#define SPI_BUS_NAME spi1
#define W25Q_SPI_DEVICE_NAME spi10
#define W25Q_FLASH_NAME W25Q512
//FAL_USING_NOR_FLASH_DEV_NAMErt_uint8_t wData[4096] {SPI bus write data to W25Q512 flash.};
rt_uint8_t rData[4096];static int rt_hw_spi_flash_init()
{rt_err_t ree RT_EOK;ree rt_hw_spi_device_attach(SPI_BUS_NAME, W25Q_SPI_DEVICE_NAME, GPIOA, GPIO_PIN_15);/* 使用 SFUD 探测 spi10 从设备并将 spi10 连接的 flash 初始化为块设备名称 W25Q128 */if (RT_NULL rt_sfud_flash_probe(FAL_USING_NOR_FLASH_DEV_NAME, W25Q_SPI_DEVICE_NAME)){return -RT_ERROR;}return ree;
}
INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init);
static void sfud_w25q_sample(void)
{rt_spi_flash_device_t flash_dev;sfud_flash_t sfud_dev;struct rt_device_blk_geometry geometry;// 1- use sfud apirt_kprintf(\n 1 - Use SFUD API \n);sfud_dev rt_sfud_flash_find_by_dev_name(W25Q_FLASH_NAME);if(sfud_dev RT_NULL){rt_kprintf(sfud cant find %s device.\n, W25Q_FLASH_NAME);}else{rt_kprintf(sfud device name: %s, sector_count: %d, bytes_per_sector: %d, block_size: %d.\n,sfud_dev-name, sfud_dev-chip.capacity / sfud_dev-chip.erase_gran,sfud_dev-chip.erase_gran, sfud_dev-chip.erase_gran);if(sfud_erase_write(sfud_dev, 0x002000, sizeof(wData), wData) SFUD_SUCCESS)rt_kprintf(sfud api write data to w25q128(address:0x2000) success.\n);if(sfud_read(sfud_dev, 0x002000, sizeof(rData), rData) SFUD_SUCCESS)rt_kprintf(sfud api read data from w25q128(address:0x2000) is:%s\n, rData);}// 2- use rt_device apirt_kprintf(\n 2 - Use rt_device API \n);flash_dev (rt_spi_flash_device_t)rt_device_find(W25Q_FLASH_NAME);if(flash_dev RT_NULL){rt_kprintf(rt_device api cant find %s device.\n, W25Q_FLASH_NAME);}else{rt_device_open(flash_dev-flash_device, RT_DEVICE_OFLAG_OPEN);if(rt_device_control(flash_dev-flash_device, RT_DEVICE_CTRL_BLK_GETGEOME, geometry) RT_EOK)rt_kprintf(spi flash device name: %s, sector_count: %d, bytes_per_sector: %d, block_size: %d.\n,flash_dev-flash_device.parent.name, geometry.sector_count, geometry.bytes_per_sector, geometry.block_size);if(rt_device_write(flash_dev-flash_device, 0x03, wData, 1) 0)rt_kprintf(rt_device api write data to w25q128(address:0x3000) success.\n);if(rt_device_read(flash_dev-flash_device, 0x03, rData, 1) 0)rt_kprintf(rt_device api read data from w25q128(address:0x3000) is:%s\n, rData);rt_device_close(flash_dev-flash_device);}
}
MSH_CMD_EXPORT(sfud_w25q_sample, sfud w25q128 sample);9.编译下载可以看到打印信息flash已经被检测到 10.读取下flash数据可以看到读取成功 可以看到我们就可以通过sfud指令读写flash了。挂载的w25q64可以被正常操作其余操作指令如下可以尝试
sf probe [spi_device] - probe and init SPI flash by given spi_device
sf read addr size - read size bytes starting at addr
sf write addr data1 ... dataN - write some bytes data to flash starting at addr
sf erase addr size - erase size bytes starting at addr
sf status [volatile status] - read or write 1:volatile|0:non-volatile status
sf bench - full chip benchmark. DANGER: It will erase full chip!
