Hi..
I am using C6748 EVM ZOOM kit. The objective of one of the examples codes given is like this:
/* printf("Test Description\r\n");
printf("----------------\r\n");
printf("The test will begin producing a 73.2421875KHz sine wave on the analog out line\r\n");
printf("(left SMA connector). After 20 seconds 64 samples will be collected from the ADC (right \r\n");
printf("SMA connector). These samples will be output through the DAC for a period of 20 Seconds. \n\r");
printf("Note that the DAC and ADC are inductively/capacitively coupled with thier connectors.\n\r");
printf("It is strongly reccomended that the signal provided to the ADC have a freqency that is an \n\r");
printf("an integer multiple of 73.2421875KHz and below 1.171875MHz.\n\r"); */
Now the problems we are facing are:
1. When we give a sinusoidal signal of freq 73.2421875KHz through function generator, it is not at all displaying on the CRO
2. Even when we try with other integral multiples like 2,3,4,.....16 ( 16 corresponds to 1.171875MHz.), the output is not coming as exact sinusoidal. Instead it is showing some thing like a capacitor discharging waveform.
3. When we try to give a sinusoidal waveform of frequency 100Hz.. The ADC , either it is showing 1023 (10 bit ADC max. value) or '0' or some garbage values.
How to resolve the above issues..?
