瑞萨RA6M4使用RC522软件包示例无反馈

发布于 2022-07-28 21:31:55 浏览：664 订阅该版

最近在瑞萨RA6M4开发板上使用RTT官方RC522软件包时进行测试代码的运行，但是只是打印了提示信息，没有显示卡片的读取数据。

```c
#include "mfrc522.h"
#include <drv_spi.h>

static struct rt_spi_device mfrc522_spi_dev;

static int rt_hw_spi_rc522_init()
{
    rt_err_t res = RT_EOK;
    rt_hw_spi_device_attach(&mfrc522_spi_dev, MFRC522_SPI_DEVICE_NAME, MFRC522_SPI_BUS_NAME, MFRC522_SS_PIN);

struct rt_spi_device *spi_dev = (struct rt_spi_device *)rt_device_find(MFRC522_SPI_DEVICE_NAME);
    // Set device SPI Mode
    struct rt_spi_configuration cfg = {0};
    cfg.data_width = 8;
    cfg.mode = RT_SPI_MASTER | RT_SPI_MODE_0 | RT_SPI_MSB | RT_SPI_NO_CS;
    cfg.max_hz = MFRC522_SPICLOCK;
    rt_spi_configure(spi_dev, &cfg);
    rt_kprintf("rt_hw_spi_rc522_init successed...\n");

return RT_EOK;
}
INIT_COMPONENT_EXPORT(rt_hw_spi_rc522_init);
//MSH_CMD_EXPORT(rt_hw_spi_rc522_init,rt_hw_spi_rc522_init);
```

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20220728/9ef304471c2319ba1f8991b090d9ecc3.png.webp)

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20220728/e48cbb834afa41ee487a738c1345f5ec.png)

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20220728/32d994f990509e02113a18a27f8ed3da.png.webp)