RT-Thread MicroPython 正点原子STM32F429-apollo开发板固件

发布于 2018-04-20 16:25:07 浏览：5176 订阅该版

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* 本帖最后由 Summer_gift 于 2018-5-4 17:54 编辑 *

## 正点原子STM32F429-apollo

![1524128744817.png](/uploads/201804/20/162414cwo5wij4eioww3x9.png)

### Pin

| Pin 设备引脚号 | 开发板引脚名 | 功能 |
| -------------- | ------------ | -------------- |
|     57       |      PB1      | LED      |
|     44     |      PH3      | KEY      |

- 示例

```python
from machine import Pin
p_out = Pin(("LED", 57), Pin.OUT_PP)
p_in = Pin(("KEY", 44), Pin.IN, Pin.PULL_UP)
while True:
    if p_in.value():
        p_out.value(0)
    else:
        p_out.value(1)
```

### I2C

| Pin 设备引脚号 | 开发板引脚名 | 功能 |
| -------------- | ------------ | -------------- |
|     43       |      PH2     | SCL     |
|     44     |      PH3      | SDA      |

- 示例

```python
>>> from machine import Pin, I2C
>>> clk = Pin(("clk", 43), Pin.OUT_OD)    
>>> sda = Pin(("sda", 44), Pin.OUT_OD)   
>>> i2c = I2C(-1, clk, sda, freq=100000) 
>>> i2c.scan()
[81]
>>> i2c.writeto(0x51,b'\x05')
1
>>> i2c.readfrom(0x51, 2)
b'\xfa\xfa'
```

### SPI

| Pin 设备引脚号 | 开发板引脚名 | 功能 |
| -------------- | ------------ | -------------- |
|     43         |      PH2     | SCLK             |
|     44              |      PH3     | MOSI      |
|     45               |      PH4         | MISO                 |

- 示例

```python
from machine import Pin, SPI
clk = Pin(("clk", 43), Pin.OUT_PP)         
mosi = Pin(("mosi", 44), Pin.OUT_PP)       
miso = Pin(("miso", 45), Pin.IN)          
spi = SPI(-1, 500000, polarity = 0, phase = 0, bits = 8, firstbit = 0, sck = clk, mosi = mosi, miso = miso)
spi.write("hello rt-thread!")
```

- 正点原子STM32F429-apollo固件下载

![rtthread.bin](/uploads/201804/20/162457alr5e10150eq99hn.attach)

- 网络开发例程全功能固件

![apollo.bin](/uploads/201805/04/175335o6c6lqtywq54qy7n.attach)

- 网络示例需要解压到 SD 卡中的内容

![sd_card.rar](/uploads/201805/04/175339ah4h94y4ff34eze1.rar)