Re: Unable to start debugger on XL216-512 board
Posted: Thu Aug 16, 2018 10:03 am
Pin 102 of your cpu wiring is not correct as shown. This is a +1v0 rail via the 4r7 ohm resistor and cannot mate with +3v3 rail.
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It does not mate with 3.3V. PWR-FLAG is just a CAD symbol to say that PLL_AVDD is a power supply pin that is powered by 1V0 via the 4R7 resistor. If you don't put this symbol on the schematics, the software issues a warning telling that PLL_AVDD pin is not powered (since R6 "isolates" the PLL_AVDD from the 1V0 source).mon2 wrote:Pin 102 of your cpu wiring is not correct as shown. This is a +1v0 rail via the 4r7 ohm resistor and cannot mate with +3v3 rail.
Code: Select all
http://isogrid.org/blob/CrowdSwitchHW_Design_0v5.zip
Yep, I already made the change on the PCB. The first version was equipped with a LSN10, but I replaced it with a LSN09 (we have older designs based on XS1-L16 chips, and we use the LSN09. The designer made a small error by choosing the LSN10, but we have not yet updated the schematics)mon2 wrote:Understood.
Are you using NCP303LSN09 or assembled with NCP303LSN10? The 1v0 may be borderline for use so do confirm that reset is released and remains released during normal use.