![]() ![]() If it is not empty then new data must have arrived. That’s why the IF condition is checking if the RX buffer is empty or not. The first part checks if any new data received. With these flags, we will know if new data arrived and if it is possible to send a new data. In the main code, we are checking both transmission complete and reception complete flags. Hardware ConnectionĬode Example #include "STM8S.h" void clock_setup(void) void GPIO_setup(void) void UART1_setup(void) void main(void) LIN and IRDA will hopefully be covered in future articles. Here we will explore the basic serial communication only. The UARTs of STM8 micros are so robust and packed with so many features that it is quite impossible to explain them all in this one article. To learn more about UART visit the following link: Different UARTs have different features as shown: Most STM8s have at least one UART module. Other communications rely on it, for example, RS-485, LIN, etc. Owing to its simplicity and wide usage, it is the communication interface backbone that is used with GSM modems, RF modules, Bluetooth devices like RN-52, Wi-Fi devices like the popular ESP8266, etc. With just two wire, we can achieve a full-duplex point-to-point communication. Serial communication is perhaps the mostly-used classic communication method for interfacing a PC or other machines with a micro. ![]()
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