蓝牙现在通过PCA9555关闭使能，反初始化串口，拉低PCA中断脚，现在是0.8v

zhangbo

2025-04-23 755f0e3a86e41e9e3cb98f36578b3199c6206e59

 keil/include/drivers/serial_at_cmd_app.c

@@ -10,7 +10,7 @@
#include "board.h"
//#include "Spi.h"
//#include "radio.h"

#include "PCA9555.h"


//#define EUART_RX_BUF_SIZE 100
@@ -185,7 +185,7 @@
        } else if ((usart_receive_state == UsartReceiveWaitMsgType) && (data == 0x41))
            {
            usart_receive_state = UsartReceiveWaitDataLen;
        
            BT_LED_ON;
        }
        else {
            usart_receive_state = UsartReceiveWaitHead0;