CC2541 迷你开发套件使用心得分享+ my love

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一个SimpleBLEPeripheral项目。用到了UART，蓝牙通信不是用的串口，CC2541实现蓝牙通信可以不用串口。

1. <p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">attWriteReq_t req;</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">req.pValue = GATT_bm_alloc( simpleBLEConnHandle, ATT_WRITE_REQ, 1, NULL );
   
2. if ( req.pValue != NULL )
   
3. {
   
4. req.handle = simpleBLECharHdl;
   
5. req.len = 1;
   
6. req.pValue[0] = simpleBLECharVal;
   
7. req.sig = 0;
   
8. req.cmd = 0;
   
9. status = GATT_WriteCharValue( simpleBLEConnHandle, &req, simpleBLETaskId );</span></p>

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蓝牙主模块、CC2541连接成功。

CC2541往蓝牙主模块发送数据，蓝牙主模块是可以接收到的。

发送代码：

1. <p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">if(BL_Flag==9)</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">{</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">BL_Flag=0;</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">HAL_UART_Transmit (&huart1 ,(uint8_t *)(START),1,1500);</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">flag=1;</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">}</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">if(BL_Flag==1)</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">{</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">BL_Flag=0;</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">HAL_UART_Transmit (&huart1 ,(uint8_t *)(STO),1,1500);</span></p><p style="line-height: 28px; color: rgb(51, 51, 51); font-family: " microsoft="" yahei";"=""><span style="font-size: 16px;">}</span></p>

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接收代码：

1. attWriteReq_t req;
   
2. 
   
3. req.pValue = GATT_bm_alloc( simpleBLEConnHandle, ATT_WRITE_REQ, 1, NULL );
   
4. if ( req.pValue != NULL )
   
5. {
   
6. req.handle = simpleBLECharHdl;
   
7. req.len = 1;
   
8. req.pValue[0] = simpleBLECharVal;
   
9. req.sig = 0;
   
10. req.cmd = 0;
    
11. status = GATT_WriteCharValue( simpleBLEConnHandle, &req, simpleBLETaskId );

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