PIC24FJ256GB206 / 64pin package / UART1 TX example code

PIC24FJ256GB206 / 64pin package / UART1 TX example code

---

	#define USE_AND_OR /* To enable AND_OR mask setting */
	#include "include/gpio.h"
	#include "include/board.h"
	#include <PIC24F_periph_features.h> // from XC16 comfiler : LEEBS 2014_1209
	#include <PIC24F_plib.h> // from XC16 comfiler : LEEBS 2014_1209
	void Initial_UART_1(void)
	{
	#if defined(PIC24FJ256GB206)
	//********************** Assign UART 1 signals onto pins using PPS *************
	mPORTFOutputConfig(RF_5);
	mPORTFInputConfig(RF_4);
	ANSF = 0x0000;
	iPPSInput(IN_FN_PPS_U1RX, IN_PIN_PPS_RP10); //Assing U1RX to pin RP10
	iPPSOutput(OUT_PIN_PPS_RP17, OUT_FN_PPS_U1TX); //Assing U1TX to pin RP17
	// Output for TX : SCL2/RP17/PMA8/CN18/RF5
	// Input for RX : SDA2/RP10/PMA9/CN17/RF4
	CloseUART1(); //dsiable UART if enabled previously
	//********************** UART 1 Configuration **********************************
	// 9600 baudrate / Low baud rate / 8 bit transmission/reception
	// No parity bit / 1 stop bit
	/*Enable UART intrrupts*/
	//ConfigIntUART1(UART_RX_INT_EN |UART_RX_INT_PR6 | UART_TX_INT_EN |UART_TX_INT_PR6);
	ConfigIntUART1(UART_RX_INT_EN |UART_RX_INT_PR1 | UART_TX_INT_EN |UART_TX_INT_PR2);
	OpenUART1(UART_EN, UART_TX_ENABLE, 25); //configure UART and enable it
	IFS0bits.U1TXIF = 1; // UART1 TX interrupt Enable.
	#endif
	}
	void UART1PutChar(uint8_t data)
	{
	while(BusyUART1()) // 1 is busy
	; // wait for TX finish
	U1TXREG = data;// WriteUART1(character);
	while(!(U1STA && 0x0100)) // TRMT: Transmit Shift Register Empty bit (read-only)
	;
	EnableIntU1TX;
	}
	uint8_t UART_rx;
	void __attribute__ ((interrupt, no_auto_psv)) _U1RXInterrupt(void) {
	UART_rx = U1RXREG;
	IFS0bits.U1RXIF = 0;
	EnableIntU1RX;
	}
	void __attribute__ ((interrupt, no_auto_psv)) _U1TXInterrupt(void) {
	IFS0bits.U1TXIF = 0;
	}
	void UART1PrintString( uint8_t *str )
	{
	uint8_t c;
	while( (c = *str++) )
	UART1PutChar(c);
	}
	void main(void)
	{
	Initial_UART_1();
	while(1)
	{
	// Tx send same string for test only.
	UART1PrintString("Hello\r\n");
	MY_delay_1ms(100);
	}
	}
	// 8MHz clock ( 4 MIPS ) case...
	void MY_delay_1ms(uint16_t delay)
	{
	uint32_t temp, i;
	temp = delay*312;
	for(i=0; i<temp; i++)
	;
	}

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