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1. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
Can you please post your complete project, so that we all can have a look at all of your settings. To do so, use
Creator->File->Create Workspace Bundle (minimal)
and attach the resulting file.Bob
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2. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
Example running at 14 bits
When I GND pins, I get count of 65535 and when I put VDD on Pins I get approx 10977. Not sure if the EOC pin is firing (I don't have a scope at my location)
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3. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
Signed arithmetic (aligned to 16 bits)
65535 = -1 = good value for ground , only one bit off
10977 = 0x2AE1, a bit more than 1FFFF maximum for 14 bit signed, the delta sigma is known to overshoot the specified range, check the datasheet. This could be good or not depending on the analog reference value used.
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4. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
Thank you Magnus. That explains the numbers I am getting. I have it on Vssa to 7.5V range and 65565 * 5.0/7.5 is 10922.
The triggering is a separate and intermittent issue which we have not got to the bottom of.
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5. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
You have a 4 input Mux but only a 2 input count signal. The original example the trigger example matched the mux inputs. This may be causing your issues.
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6. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
No - that's not it. With 2 lines, you can set 0x00, 0x01,0x02, 0x03. A 16 channel MUX only needs 4 Count lines. The LUT sets these lines.
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7. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
Increase your stack size it is set to 0x80 by default but this is too small for some applications increase it to 0x200 and see what happens.
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8. Re: Getting DelSig_16Channel Example to Work on CY8KIT-059 (with Serial instead of LCD)
Okay I made the example and it seems to read channel one but doesn't toggle to the other inputs. Your project is missing the selection switch and that may be the issue. I haven't added the switch yet so for now I am stuck on channel 0. I just tried the switch input. It will not sequence without a user input in the example program. Did you put a sequencer in your program?