Julius Werner wrote: > > As I have access to a DediProg EM100Pro [1] including a 10-Pin Split > > Cable with a grabber on the hold pin [2], and a clip, I was wondering if > > I can hook it up without soldering to boot from (like an external chip). > > I mean... I can at least tell you that we do this in practice all the > time (with generally no issues). The SPI flash is not electrically > isolated, so yes, you're gonna leak some current into the SoC when you > do this (there are 100Ohm limiting series resistors so it's not a > complete short). I've never heard of a Chromebook board dying from > this but I can't legally guarantee you anything, of course.
I don't think there can be a problem with current leaking, but on some boards HOLD is tied directly to VCC, without a pullup. In that case there's no way to work with a clip, the whole chip or at least the HOLD pin has to be disconnected from the board, and HOLD tied low instead. //Peter _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
