[ 学习 ] STM32 HAL enc28j60 初始化配置

发布于 2019-04-08 14:59:19 浏览：2985 订阅该版

* 本帖最后由 wuhanstudio 于 2019-4-8 15:08 编辑 *

如果 enc28j60 也能像 AT 组件那样直接在 env 里配置设备名，加上 CS、INT、RST 引脚，然后自动初始化就好了。
```[ ]   Enable at device init by thread (NEW)```
![FastAdmin]()

ENC28J60 初始化

1. 首先在 env 里面选择 SPI 和ENC28J60```RT-Thread Components  --->
    Device Drivers  --->    
    (*) Using SPI Bus/Device device drivers
    (*)     Using ENC28J60 SPI Ethernet network interface```
2. 生成项目 scons --target=mdk5 -s，并新建文件 drv_enc28j60.c 添加到 Drivers

![TIM截图20190408154234.png](/uploads/201904/08/144704ihhawubrh5k8cqqv.png)

3. 编辑 drv_enc28j60.c
```#include <rtthread.h>
#include <enc28j60.h>
#include <drivers/pin.h>

#define ENC28J60_BUS          "spi1"
#define ENC28J60_DEVICE    "spi10"

// ENC28J60_CS
// ENC28J60_MISO
// ENC28J60_MOSI
#define ENC28J60_CS             14      // PA0 for STM32F103RC defined in drv_gpio.c
#define ENC28J60_INT            15      // PA1 for STM32F103RC defined in drv_gpio.c
#define ENC28J60_RESET      20      // PA4 for STM32F103RC defined in drv_gpio.c

void enc28j60_int_handler(void *args)
{
    /* enter interrupt */
    rt_interrupt_enter();

enc28j60_isr();

/* leave interrupt */
    rt_interrupt_leave();
}

static int rt_hw_enc28j60_init(void)
{
    /* Configure SPI */
    extern rt_err_t stm32_spi_bus_attach_device(rt_uint32_t pin, const char *bus_name, const char *device_name);
    stm32_spi_bus_attach_device(ENC28J60_CS, ENC28J60_BUS, ENC28J60_DEVICE);

/* Configure Reset */
    rt_pin_mode(ENC28J60_RESET, PIN_MODE_INPUT_PULLUP);
    rt_pin_write(ENC28J60_RESET,0);
    rt_thread_delay(1);
    rt_pin_write(ENC28J60_RESET,1);

enc28j60_attach(ENC28J60_DEVICE);

/* Configure Interrupt */
    rt_pin_mode(ENC28J60_INT, PIN_MODE_INPUT_PULLUP);
    rt_pin_attach_irq(ENC28J60_INT, PIN_IRQ_MODE_FALLING, enc28j60_int_handler, (void*)"callbackargs");
    rt_pin_irq_enable(ENC28J60_INT, PIN_IRQ_ENABLE);

return 0;
}
INIT_DEVICE_EXPORT(rt_hw_enc28j60_init);
```
4.  上传代码就能 ping 通了

![TIM截图20190408154528.png](/uploads/201904/08/144949umh2z52z52z2k0vo.png)

![FastAdmin](https://www.rt-thread.org/qa/static/image/hrline/line5.png)
> 参考链接： [https://www.rt-thread.org/qa/for ... &highlight=enc28j60](https://www.rt-thread.org/qa/forum.php?mod=viewthread&tid=7985&highlight=enc28j60)