Why i cant read and send data between UART2 of a STM32L412RBT6 (PA2 and PA3) and the BlueNRG-M2SP UART(DIO8 and DIO11)
I designed a PCB with an STM32L412RBT6 and a BlueNRG-M2SP, and I checked the connection and I can't read data from the bluetooth module and I can't send data from the STM32.I made the following code:stm32l4xx_it.cvoid USART2_IRQHandler(void) { /* U...