PSoC™ 5, 3 & 1 Forum Discussions

Hello,

i want to display a ADC result in decimal on the display. I have found something to display in float but not in decimal.

char *pResult;            // Pointer used to store the result returned by ftoa function
int iStatus;                  // Status variable for the ftoa function

LCD_Position(1,5);

pResult = ftoa(ADC_value,&iStatus );
 LCD_PrString(pResult);

 regards Alex

Trying to build fine frequency meter I discover that capture function fail to work in case of external measuring signal used.

I use sequential capturing on terminal count of Counter_1. Then I calculate difference between two neighbor FIFO values. 

 See attached setup.

If I use as test signal internally generated Clock2 everything works fine.

But in any case of using external signal from the port pin(doesn't matter as digital input or analog with comparator) lead to zeroes in FIFO status bits.

This is absolutely the same for PSOC3 and PSOC5. Tests were done on CY8KIT-003 and CY8KIT-014.  

All,

I am using the CY8CKIT-001 PSoC-5 demo board and have been able to get the 16-bit ADC example to work in "diff" mode, and then send the data out using the USBUART example. I use the original switch routine to start the conversion, then I turn on an LED showing the the DMA is done, then use another switch to dump the data out the USBUART portion.....BUT.... when I try to setup my array to bigger than 2,000 and do an ADC sample, I end up with a bunch of 0's in the reset of the array. Example, if I wanted to make my array 20,000 samples, only about the first 2000 samples are actual data, while the rest are all 0's. (it varies from acquire to acquire)

the uint16 should be 0 -- 65535 values so that should be ok.  The code is exactly as the original Cypress example. I have just changed the NO_OF_SAMPLES to a larger number.

#define NO_OF_SAMPLES 2000

uint16 ADC_sample[NO_OF_SAMPLES]={0};

The array of 2,000 works fine, along with a sample rate of upto 100,000Sps. Verified with sig-gen and Excel. I don't understand why changing the array won't work. Even changing it to 3,000 samples doesn't work. Why / Where is the array/DMA transfer limitation?

Any ideas????

Keith

 hi..

i am working with RTC code provided in example code,

but it gives some problem

after successful compilation & programming

program dose not shows the required output

its min variable &one letter(last) of day get disappear 

i need continuous running rtc code.

plz go through attached code

thank you