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// Source code under CC0 1.0
#include <stdint.h>
#include <stdio.h>
#include "stm8.h"
#include "serial.h"
volatile unsigned char *sif= (unsigned char *)0x7fff;
void main(void)
{
unsigned long i = 0;
unsigned int a= 0;
CLK->ckdivr = 0x00; // Set the frequency to 16 MHz
CLK->pckenr1 = 0xFF; // Enable peripherals
// USART2
// TX: PD5, CN4.10
// RX: PD6, CN4.11
USART->cr2 = USART_CR2_TEN | USART_CR2_REN; // Allow TX and RX
USART->cr3 &= ~(USART_CR3_STOP1 | USART_CR3_STOP2); // 1 stop bit
USART->brr2 = 0x03;
USART->brr1 = 0x68; // 9600 baud
USART->cr2|= USART_CR2_RIEN;
EI;
for(;;)
{
i++;
if (serial_received())
{
char c= getchar();
if (c == '*')
{
printf("0x%04x\n", a);
}
printf("%c", c);
i= 0;
}
if (i > 147456*2)
{
printf("tick %u 0x%04x Hello World!\n", a, a);
i= 0;
a++;
}
}
}
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