[own mistake-solved] VDD_SDIO 1.8V switch back to 3.3V after reboot, boostrap not helpfull

[rudi ;-)]

@WiFive

but only for the protocol:

IO12 pulled up
Regulator again 3.3V

no 1.8 is here

now i take a rest.



edit: this is a never ending story

edit: now i have 1.8

i can*t reproduce again?!

i come back to this theme after the OSC test
this TRMS 115 is good but OSC is better.


take a rest now
@WiFive
txs!

[rudi ;-)]

viewtopic.php?f=2&t=1934#p9265

I don't know what you are saying. You mean with gpio12 3.3v strap and crash, ROM bootloader does not properly read strap? What is printed value of strapping pins?

you are right
forget my post -
my wire was total wrong

my agenda was right written to use IO12

the shematic was done right on IO12

IO12.png (48.69 KiB) Viewed 2885 times

not sure why i take this weekend in all doings IO15