Цитата:
If you have programmed the wrong 3 or 6-12 bit CPLD or have a corrupted CPLD, hold all 3 menu buttons down during reset until you get the "rainbow" screen then wait a few seconds and release the buttons. This will get you back into the recovery menu. The recovery menu will not work if you have accidentally programmed the Atom CPLD into the 3 or 6 bit boards.
Finally, if for some reason the CPLD is corrupt in a way that prevents you from using the menu buttons, put the SD card in a PC and enter the "cpld_firmware" folder. In this folder is a file called "Delete_This_File_To_Erase_CPLD.txt".
Delete this file, put the SD card back in the Pi and reset. The CPLD will be erased on bootup without waiting for any keypresses and you can then use the recovery menu to reprogram it. The file will automatically be re-created after bootup.
Но мне это в своё время не помогло, а программатора для Ксилинкса нету. В итоге Алиэкспресс просто вернул мне бабки, а эти CPLD где-то до сих пор валяются.