rudi ;-) wrote:the next think over:
--------------------------

......
test the steps on DevKitC like i mentioned.
make the measuring on VDD_SDIO
and you will make

yes rudi - we got all a big .. better next time don't think ...
take a rest now - it is better


sry guys

@WiFive
same here
forget my last 2-3 postings
the boostrap wire was done on wrong IO15 here too.

holy moly
( jeroen i hear you laughing - but you have right )

where is the next corner
i am so small now

https://www.esp32.com/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 ...

@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 ...

so all my waste time was cause we did all time the wrong pull up on wrong bootstrap? :oops: :oops: :oops: where is the next corner ... oh my holy poly - where comes the wrong info / cross we did allways MTDI - yes you full right - it is IO12 why we did this weekend on IO15? .. forgive me guys - oh m...

WiFive wrote:

The embedded flash operates at 1.8V. For the ESP32 series of chips that contain embedded flash, the MTDI/GPIO12 should be pulled high.

@WiFive
only GPIO12?
GPIO12 and GPIO15?

i just in time wake up again

WiFive wrote:Just this part: boot:0x13

Now try GPIO12

try GPIO12 to pull up?

@WiFive
it was long weekend, and again waste time, no info and shematic.
sry my head is full - and i must take a rest now.
OSC protocol follows to the simple TMS 115 show this week after the rest express parcel comes
and i did the last test on this theme by OSC then.

best wishes
rudi

https://www.esp32.com/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? usually if we use boostrap pin ( GPIO15, for VDD_SDIO ) IO15.png then we have 1.8V ...