stm32f429+RW007 初始化一直失败？？？

发布于 2020-10-20 16:38:51 浏览：1730 订阅该版

[tocm]

**硬件使用的ALIENTEK的F429核心板，底板是自己画的板子**
**RW007在SPI4上总线上挂载**
**spi4通过cubmux配置IO口，KCONFIG里也修改了，list_device里也有spi4设备**
**初始化一直失败，感觉是SPI初始化的有问题，请大家帮我看看**
SPI4 IO口配置（cubmux生成的）
```c
  /* USER CODE END SPI4_MspInit 0 */
    /* Peripheral clock enable */
    __HAL_RCC_SPI4_CLK_ENABLE();
  
    __HAL_RCC_GPIOE_CLK_ENABLE();
    /**SPI4 GPIO Configuration    
    PE2     ------> SPI4_SCK
    PE5     ------> SPI4_MISO
    PE6     ------> SPI4_MOSI 
    */
    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_5|GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF5_SPI4;
    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
```
硬件连接图
![1.png](/uploads/20201020/a6c71f23ea985dae1abfdf6e516c3229.png)

![2.png](/uploads/20201020/b0adbf7b52d5708081c7d365ad3e122c.png)
![3.png](/uploads/20201020/fa01046494bb01840bd5a8fb42b1c825.png)

## rw007_stm32_port.c
```c
#include <rtthread.h>

#ifdef RW007_USING_STM32_DRIVERS
#include <rtdevice.h>
#include <drv_spi.h>
#include <board.h>
#include <spi_wifi_rw007.h>

extern void spi_wifi_isr(int vector);

#define RW007_nCS_PIN       GET_PIN(E,4)
#define RW007_nBOOT0_PIN    GET_PIN(E,2)
#define RW007_nBOOT1_PIN    GET_PIN(E,4)
#define RW007_nINT_BUSY_PIN GET_PIN(E,3)
#define RW007_nRST_PIN      GET_PIN(I,11)

static void rw007_gpio_init(void)
{
    /* Configure IO */
    rt_pin_mode(RW007_nRST_PIN, PIN_MODE_OUTPUT);
    rt_pin_mode(RW007_nINT_BUSY_PIN, PIN_MODE_INPUT_PULLDOWN);

/* Reset rw007 and config mode */
    rt_pin_write(RW007_nRST_PIN, PIN_LOW);
    rt_thread_delay(rt_tick_from_millisecond(100));
    rt_pin_write(RW007_nRST_PIN, PIN_HIGH);

/* Wait rw007 ready(exit busy stat) */
    while(!rt_pin_read(RW007_nINT_BUSY_PIN))
    {
        rt_thread_delay(1000);
        rt_kprintf("WIFI BUSY...\n");
    }

rt_thread_delay(rt_tick_from_millisecond(200));
    rt_pin_mode(RW007_nINT_BUSY_PIN, PIN_MODE_INPUT_PULLUP);
}

int wifi_spi_device_init(void)
{
    char sn_version[32];
    
    GPIO_TypeDef *cs_gpiox;
    uint16_t cs_pin;

cs_gpiox = GPIOE;
    cs_pin = GPIO_PIN_4;

rw007_gpio_init();
    rt_hw_spi_device_attach("spi4", "wspi", cs_gpiox, cs_pin);
    rt_hw_wifi_init("wspi");

rt_wlan_set_mode(RT_WLAN_DEVICE_STA_NAME, RT_WLAN_STATION);
    rt_wlan_set_mode(RT_WLAN_DEVICE_AP_NAME, RT_WLAN_AP);

rw007_sn_get(sn_version);
    rt_kprintf("\nrw007  sn: [%s]\n", sn_version);
    rw007_version_get(sn_version);
    rt_kprintf("rw007 ver: [%s]\n\n", sn_version);

return 0;
}
INIT_APP_EXPORT(wifi_spi_device_init);

static void int_wifi_irq(void * p)
{
    ((void)p);
    spi_wifi_isr(0);
}

void spi_wifi_hw_init(void)
{
    rt_pin_attach_irq(RW007_nINT_BUSY_PIN, PIN_IRQ_MODE_FALLING, int_wifi_irq, 0);
    rt_pin_irq_enable(RW007_nINT_BUSY_PIN, RT_TRUE);
}

#endif /* RW007_USING_STM32_DRIVERS */

```

串口输出内容：
![49.png](/uploads/20201020/1cf3ece12d2f1b7f977c4fef27a65eee.png)

检查了2天了没找到问题，请各位前辈指导，谢谢！