Hello everybody.
I'm trying to get my Pic18f4550 to send a simple 'hello' to realterm through the uart. I receive data, sometimes it looks like a 'hello', but sometimes also hnllo... hxxxx lwwlo ....
**broken link removed**
As you can see I've got realterm at 2400bps. My pic should be setup this way aswell. Right?
It seems like there is some synchronization problem. Is it okay to use the internal clock ? Any help would be greatly appreciated.
I'm trying to get my Pic18f4550 to send a simple 'hello' to realterm through the uart. I receive data, sometimes it looks like a 'hello', but sometimes also hnllo... hxxxx lwwlo ....
**broken link removed**
As you can see I've got realterm at 2400bps. My pic should be setup this way aswell. Right?
Code:
#include <p18f4550.h>
#include <stdio.h>
#include <delays.h>
#include <spi.h>
#include <usart.h>
/* 4550's settings */
#pragma config WDT = OFF
#pragma config FOSC = INTOSCIO_EC //Internal oscillator, port function on RA6, EC used by USB
#pragma config MCLRE = OFF
#pragma config LVP = OFF
void setup(void)
{
/* Port Set Up*/
ADCON1 = 0b00001111; //set all pins to digital mode
TRISD = 0;
TRISA = 0;
TRISB = 0b00000011; //set RB0 and RB1 as input for SPI communication
TRISC = 0b10000000; // RX is an input, TX is output
/* Interrupt Setup */
INTCON = 0x00; /* Clear Registers */
PIR1 = 0x00;
PIE1 = 0x00;
TMR1L = 0x00;
TMR1H = 0x00;
T1CON = 0x00;
RCON = 0x00;
/* RS232 Enable */
//RCSTA = 0b10000000;
//TXSTA = 0b00100000;
//BAUDCON = 0b00000000;
//SPBRG = 51; //FOSC = 8.000 MHz,SYNC = 0, BRGH = 0, BRG16 = 0
OpenUSART (USART_TX_INT_OFF & USART_RX_INT_OFF & USART_ASYNCH_MODE & USART_EIGHT_BIT & USART_CONT_RX & USART_BRGH_LOW, 51);
/* Clock Setup*/
OSCCON = 0b01110110; //select 8 MHz clock
void main()
{
setup();
while (1)
{
putrsUSART("Hello");
while(BusyUSART());
Delay1KTCYx(1000);
//refresh(red_byte_array,green_byte_array,blue_byte_array);
}
}It seems like there is some synchronization problem. Is it okay to use the internal clock ? Any help would be greatly appreciated.