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A UART (Universal Asynchronous Receiver Transmitter) is a piece of logic that sends and receives data on a serial port.

4
votes
0answers
change any UART, GPIO, RCC or NVIC configuration. Surprisingly, when I comment two lines in SysTick Interrupt Handler function i.e. SysTick_Handler, HAL_UART_Receive starts working but this comes …
asked Dec 11 '15 by bex
1
vote
First I want to say thanks for all the contributions towards finding the right answer and I've tried every solution you suggested. After spending a lot of time on reading SIM900 documentation, I foun …
answered Dec 9 '15 by bex
1
vote
3answers
(); SystemClock_Config(); MX_GPIO_Init(); MX_USART1_UART_Init(); /* UART TX and RX */ HAL_UART_Transmit(&huart1, (uint8_t*) Message, TXATMESSAGESIZE, 1); if( HAL_UART_Receive(&huart1, (uint8_t …
asked Dec 8 '15 by bex