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The example demonstrates simple data exchange via USART. When PIC MCU
receives data, it immediately sends the same data back. If PIC is connected to the
PC (see the figure below), you can test the example from mikroC terminal for
RS232 communication, menu choice Tools > Terminal.
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mikroC
- C Compiler for Microchip PIC microcontrollers
mikroC
making it simple...
Prototype
char Usart_Write(char data);
Description Function transmits a byte (data) via USART.
Requires USART HW module must be initialized and communication established before using
this function. See
Usart_Init.
Example
int chunk;
...
Usart_Write(chunk);
/* send data chunk via USART */
Usart_Write
Library Example
unsigned short i;
void main() {
// Initialize USART module (8 bit, 2400 baud rate, no parity bit..)
Usart_Init(2400);
do {
if (Usart_Data_Ready()) {
// If data is received
i = Usart_Read();
// Read the received data
Usart_Write(i);
// Send data via USART
}
} while (1);
}
//~!