bg2rhe 发表于 2019-6-6 17:34
已解决。
爬了一下罗杰克拉克的网站，发现原来是个坑。
HardwareSerial Serial2(USART2);
HardwareSerial Serial3(USART3);
补一下哈哈
bg2rhe 发表于 2019-6-6 17:34
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你好啊大佬你是怎么解决的啊 我始终不行哭了
HardwareSerial Serial2(USART2);
HardwareSerial Serial3(USART3);
void setup()
{
Serial.begin(115200);
Serial1.begin(115200);//TX=PA9,RX=PA10
Serial2.begin(115200);//TX=PA2,RX=PA3
Serial3.begin(115200);//TX=PB10,RX=PB11
}
void loop()
{
delay(100);
Serial.println("Test Serial");
Serial1.println("Test Serial1");
Serial2.println("Test Serial2");
Serial3.println("Test Serial3");
}
代码如上
more_serial:1:25: error: 'USART2' was not declared in this scope
more_serial:2:25: error: 'USART3' was not declared in this scope
exit status 1
stray '\302' in program
报错情况是这样的