I have a TE0720 XC7Z020 chip connected to to the TE0703-06 Carrier.
In my system I plugged in a cable incorrectly and blew U3 on the carrier, verified with a thermal camera :(. Hoping to salvage, I took the TE0720 off and plugged it into a new carrier. Now instead of getting by the flashing red on the TE0720 it is a solid red, and instead of D3 and D4 on the TE0703 being solid, all of D1, D2, D3, and D4 are blinking slowly. I am not able to connect to the device though JTAG. When I swap this out with a different chip (TE0720-04-31C33MA) on the same carrier behavior goes back to normal.
Wondering what this indicates, and hoping to salvage. I don't have any spares of my part.
Would appreciate any help or insights.
Hi,
CPLD Firmware documentation:
https://wiki.trenz-electronic.de/display/PD/TE0720+CPLD#TE0720CPLD-On-boardLEDs
But when you say all 4 leds are blinking...I would say module is damaged, looks like it restarts very time.
Green LED D4 is Done LED (Indicates PL Part is Programmed or not):
https://wiki.trenz-electronic.de/display/PD/TE0720+TRM#TE0720TRM-MainComponents
When you change boot mode to SD an power on without SD, it should be stay on. Is it on in this case or still blinking.
In any case I think something is damaged on the module.
br
John