Added assert test to main.c with stderr debug console output

This commit is contained in:
Arti Zirk 2016-09-10 00:57:01 +03:00
parent ae55fbac04
commit 85dca87ff3

View File

@ -1,18 +1,46 @@
#include <stdio.h>
#include <avr/io.h>
#include <util/delay.h>
#define __ASSERT_USE_STDERR
#include <assert.h>
#include "uart.h"
#define BLINK_DELAY_MS 1000
#define BLINK_DELAY_MS 100
int main (void)
{
/* set pin 25 of PORTB for output*/
/* set pin 3 of PORTA for output*/
DDRA |= _BV(DDA3);
/* Init error console as stderr in UART3 and print user code info */
uart3_init();
stderr = &uart3_out;
fprintf(stderr, "Version: %s built on: %s %s\n",
GIT_DESCR, __DATE__, __TIME__);
fprintf(stderr, "avr-libc version: %s\n", __AVR_LIBC_VERSION_STRING__);
/*End UART3 init and info print */
/* Test assert - REMOVE IN FUTURE LABS */
char *array;
uint32_t i = 1;
extern int __heap_start, *__brkval;
int v;
array = malloc( i * sizeof(char));
assert(array);
/* End test assert */
while (1) {
/* set pin 25 high to turn led on */
/* set pin 3 high to turn led on */
PORTA |= _BV(PORTA3);
_delay_ms(BLINK_DELAY_MS);
/* set pin 25 low to turn led off */
/* Test assert - REMOVE IN FUTURE LABS */
/* Increase memory allocated for array by 100 chars
* until we have eaten it all and print space between Stack and Heap.
* Thats how assert works in run-time */
array = realloc( array, (i++ * 100) * sizeof(char));
fprintf(stderr, "%d ",
(int) &v - (__brkval == 0 ? (int) &__heap_start : (int) __brkval));
assert(array);
/* End test assert */
/* set pin 3 low to turn led off */
PORTA &= ~_BV(PORTA3);
_delay_ms(BLINK_DELAY_MS);
}