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串口连接4G模块修改问题 #6

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sb10000 opened this issue May 8, 2025 · 1 comment
Closed

串口连接4G模块修改问题 #6

sb10000 opened this issue May 8, 2025 · 1 comment

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@sb10000
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sb10000 commented May 8, 2025

想用A01外接ML307 4G模块，需要Uart口进行通信，遇到问题如下：
如果定义 ML307_RX_PIN GPIO_NUM_19
ML307_TX_PIN GPIO_NUM_20
就会报错
如果定义ML307_RX_PIN GPIO_NUM_10
ML307_TX_PIN GPIO_NUM_18
就能正常编译

是不是这个串口被内置的ASR芯片占用了？或者是说明书文件里的引脚标错了？这个引出的串口能否使用？麻烦解答一下
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@HoGC
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HoGC commented May 10, 2025

是的，内部语音芯片默认使用了Uart1，可以把VB6824_UART_PORT改为0

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@SmartArduino @HoGC @sb10000