Manage multiple uarts in STM32 || Head and Tail || circular buffer || serial devices

Purchase the Products shown in this video from :: https://controllerstech.store ________________________________________________________________________________________ How to manage multiple UARTs in STM32 Like circular buffers. This will be done using head and tail method, and it will help interfacing serial based sensors like esp8266, GSM, GPRS etc. ************* UPDATE 2 *************** L4 series and G series MCUs have some issues with UART_ISR_TXE. If you are having issues even after making changes according to UPDATE 1, then Replace the Uart_isr with the file https://controllerstech.com/wp-content/uploads/2020/10/uart_isr_multi_new.c ************* UPDATE 1 *************** Those, who have errors in the Uart_isr function, like DR or SR registers are not present, replace the Uart_isr code with the one provided in this file https://controllerstech.com/wp-content/uploads/2020/04/Uart_isr.c STM32 UART Playlist:::: https://www.youtube.com/playlist?list=PLfIJKC1ud8gjhc4HiqVXUzcVq4iL5MqTz STM32 Playlist :::: https://www.youtube.com/playlist?list=PLfIJKC1ud8gga7xeUUJ-bRUbeChfTOOBd DOWNLOAD THIS PROJECT FROM :::: https://controllerstech.com/managing-multiple-uarts-in-stm32/ ________________________________________________________________________________________