2020-11-27 07:30 AM
I have custom board with minimal design only stm32 chip is there and couple necessary capacitors and due to some soldering issue, i got shorted with 3.3 and gnd .. accidentaly i powered it on and for debuging it was connected like this for 2 minutes. now stm32 is not communicating through swd. Did it brick stm32 by shorting 3.3 and gnd for a minute ?
2020-11-27 09:12 AM
It is Stm32f765vit6. what level should it be on nrst and vcap ? . yes. boot0 pin is low.
2020-11-27 09:14 AM
Looks fine to me. Verify orientation is correct. Check for solder bridges. VCAP should be 1.2V. NRST should be high. BOOT0 should be low. Check for appropriate power draw.
2020-11-27 09:18 AM
YES BOOT0 is low and nrst is having 3.3v but vcap2 is at zero. but vcap1 is at 50mv
2020-11-27 09:19 AM
what should do to check power draw ?
2020-11-27 09:21 AM
I might be wrong at orientation since dot is at bottom left and then print is forward
2020-11-27 09:23 AM
It is totally different from the stm32cubeide dot is on bottom left
2020-11-27 09:27 AM
Y1 is the crystal
2020-11-27 09:29 AM
2020-11-27 09:29 AM
oh is it wrong then ? should i follow the dot or text ? will it broken or should i use directly use new chip ?
2020-11-27 09:32 AM