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- C Compiler for Microchip PIC microcontrollers
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Prototype
char Usart_Data_Ready(void);
Returns Function returns 1 if data is ready or 0 if there is no data.
Description Use the function to test if data is ready for transmission.
Requires USART HW module must be initialized and communication established before using
this function. See Usart_Init.
Example
int receive;
...
// If data is ready, read it:
if (Usart_Data_Ready()) receive = Usart_Read;
Usart_Data_Ready
Prototype
char Usart_Read(void);
Returns Returns the received byte. If byte is not received, returns 0.
Description Function receives a byte via USART. Use the function Usart_Data_Ready to test if
data is ready first.
Requires USART HW module must be initialized and communication established before using
this function. See Usart_Init.
Example
int receive;
...
// If data is ready, read it:
if (Usart_Data_Ready()) receive = Usart_Read;
Usart_Read