Search found 5 matches
- Thu Oct 29, 2020 3:43 pm
- Forum: ESP32 Arduino
- Topic: ESP32 randomly crashing with high EMI RS-232 comm
- Replies: 0
- Views: 238
ESP32 randomly crashing with high EMI RS-232 comm
Hello all, I have a problem that's kind of got me stumped. Basically, I've designed a PCB around an ESP32 that provides WiFi connectivity and access to a large power supply. It communicates with the power supply's CPU via RS-232 (connector, not on the same board.) Most of the time it works perfectly...
- Sat Mar 14, 2020 7:57 pm
- Forum: General Discussion
- Topic: 5V tolerance
- Replies: 7
- Views: 30483
Re: 5V tolerance
I've been doing some tests on this lately, and have come up with the following (non-official) conclusions. Basically, I'm testing with a 1K resistor from 6.4v to an ESP-WROOM-32 on a Devkit module that is powered via USB and running with all I/Os at default states. Only some of the I/O pins appear t...
- Fri Feb 28, 2020 9:52 pm
- Forum: ESP-IDF
- Topic: Flash encryption without secure boot
- Replies: 9
- Views: 3331
Re: Flash encryption without secure boot
So I can report back that I have successfully programmed and encrypted 18 ESP32 project boards using Arduino IDE 1.8.11 with a custom bootloader. Basically, I GIT'ted ESP-IDF v3.3.1, configured the bootloader as desired (encrypt on start, disable plaintext flashing, release mode, QIO, 80MHz, 4MB), t...
- Fri Feb 28, 2020 6:47 pm
- Forum: ESP-IDF
- Topic: Flash encryption without secure boot
- Replies: 9
- Views: 3331
Re: Flash encryption without secure boot
The fact it logs here may be because there's no factory partition, I'm not sure - what IDF bootloader version are you using here? Well, that's just the problem. After spending multiple hours beating my head against the wall with ESP-IDF this morning, here's the answer: I have absolutely no idea. Un...
- Thu Feb 27, 2020 10:22 pm
- Forum: ESP-IDF
- Topic: Flash encryption without secure boot
- Replies: 9
- Views: 3331
Re: Flash encryption without secure boot
My apologies in advance if this is posted in the wrong forum--but searching the forum is extremely difficult for me. After about two searches (which can take 10 seconds to return), the ESP32 website starts returning a completely blank page. Not sure what's going on--I'm usually better off searching ...