S'Hase I have encountered an issue with the APM32F003 microcontroller that I’m hoping someone can help me with. I have been trying to use USART3, but it doesn’t seem to be working correctly.
Gavin I have encountered an issue with the APM32F003 microcontroller that I’m hoping someone can help me with. I have been trying to use USART3, but it doesn’t seem to be working correctly.
jim.kai The IOs of uart3 associated only have open drain mode, so it cannot output high levels, you need to connect the pull-up resistor to vdd. Please refer to our latest article. Thanks. https://community.geehy.com/d/600-why-apm32f003-uart3-tx-cannot-be-sent
