Posted on April 03, 2014 at 18:16
Dear,
i am proceeding over a development of a quiet simple application (23K of code now), increasing complexity, everything was working fine, but from some recent code improvements and builds, i started to have the application behavior corrupted.
I am driving am SSD1289 lcd / touch, and driving also some gpio.
Increasing the code size, LCD started to be non responsive to the graphic commands, so i commented out the great part of the code, and let only a small code working.
If i just init the gpio, and make a relay click on and off each second, it works.
/**
* @brief This function handles SysTick Handler.
* @param None
* @retval None
*/
void SysTick_Handler(void)
{
delay_decrement();
prescaler--;
if(prescaler == 0)
{
prescaler = 200;
}
}
void delay_decrement(void)
{
if (time_preload != 0x00) time_preload--;
}
void delay_ms(volatile uint32_t t)
{
time_preload = t;
while(time_preload != 0);
}
void run ()
{
for(;;)
{
gpio_relay_on_off(i);
i=!i;
delay_ms(1000);
}
}
But, if i start to enable the FSMC controller, with the line:
RCC_AHB3PeriphClockCmd(RCC_AHB3Periph_FSMC, ENABLE);
Then i hear the relay clicking on or off each 4 seconds.
Very strange. Could i have some hardware issue ?
Many thanks
Angelo
