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I have a board with a PSOC5 CY8C5268AXI chip that I am trying to communicate with using a miniprog3, I am using external power, SWD communication via the 5-pin connector. I can get it to recognize the chip and connect but then it looses connection and cant find it again without repowering the miniprog3.
See video of issue here: https://www.youtube.com/watch?v=5I-JARF-0Hs
I am new to the Cypress PSOC so I don't know what is normal to compare the behavior to.
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PSoC 5LP
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Xres is not being toggle I would guess.
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You can try Power Cycle mode of programming instead of Reset mode
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I will look into the xres not working but I am power cycling the programmer and the board and chip remained powered so the PSOC is not being power cycled by this. Yet the programmer can talk to the PSOC for a short period of time after it is rebooted. Maybe power cycling the programmer is toggling the xres line.
I tried to program directly with the programmer suppling the power in power cycle mode originally but it was not seeing the PSOC at all. When I checked the voltage level with a scope it was a half a volt. There is a WiFi module on the board that also uses the 3.3V which may be drawing more then the programmer can supply. When I connect 5V to the board which is regulated down to 3.3V I get a stable 3.3V reading for the power.