When the following c-code is loaded, the leds will light up but not respond to the attached pot.
The leds hold their initial value, and this initial value changes on different load attempts (I'm not sure what changes I've made to make this happen).
De0 Nano
Platform Designer Modules:
Nios ii, econ-mode
on-chip memory
ADC
Leds
JTAG
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#define ADC_ADDR 0x00011000 //Qsys defined base address for the ADC
#define LED_ADDR 0x00011020 //Qsys defined base address for the LEDs
int main (void)
{
volatile int * adc = (int*)(ADC_ADDR);
volatile int * led = (int*)(LED_ADDR);
unsigned int data;
int channel;
data = 0;
channel = 0;
while(1)
{
*(adc) = 0; //Start the ADC read
data = *(adc+channel); //Get the value of the selected channel
data = data/16; //Ignore the lowest 4 bits
*(led) = data; //Display the value on the LEDs
usleep(100000);
//*(led) = 0x00;
//usleep(100000);
//*(led) = 0xFE;
//usleep(100000);
}
return 0;
}
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Any help is greatly appreciated
