Search found 296 matches

by urbanze
Wed Dec 13, 2017 2:59 pm
Forum: ESP-IDF
Topic: Windows 10 update broke make monitor and make simple_monitor
Replies: 4
Views: 6061

Re: Windows 10 update broke make monitor and make simple_monitor

New esp-idf 3.0 realease an update for this, try!

I had this problem too and after update, work's normaly
by urbanze
Wed Dec 13, 2017 2:02 am
Forum: General Discussion
Topic: Brown Out Detector Bug/issue
Replies: 8
Views: 14962

Re: Brown Out Detector Bug/issue

Thanks for the update and the detailed scope shots, etc. I think this is probably a hardware fault with the DOIT board not integrating enough capacitance on the board. The fact you can see a pulse down to 2.6V on what looks like a fairly slow scope trace makes me think it probably is dipping lower ...
by urbanze
Tue Dec 12, 2017 1:53 pm
Forum: General Discussion
Topic: Brown Out Detector Bug/issue
Replies: 8
Views: 14962

Re: Brown Out Detector Bug/issue

Hi Angus, I update ESP-IDF to new "3.0 pre-release rc1" and got new informations about BOD. 1-) Before the update, when it was with 1mF capacitor it continued to reset, however now with capacitor does not reset. 2-) Without the capacitor, reset. 3-) Note: This did not happen in the past, it only sta...
by urbanze
Sun Dec 10, 2017 2:21 am
Forum: General Discussion
Topic: ESP32 Automatic flash error
Replies: 10
Views: 15577

Re: ESP32 Automatic flash error

I was testing some items in ESP32 that have this automatic flash problem and I noticed something very strange!

When I use "make erase_flash" and then I upload any sketch "make flash", it works most of the time, not requiring capacitors or pressing the button.

What is it? What is going on? Solution?
by urbanze
Sun Dec 10, 2017 2:16 am
Forum: General Discussion
Topic: Brown Out Detector Bug/issue
Replies: 8
Views: 14962

Brown Out Detector Bug/issue

Since yesterday the BOD of my esp32 is crazy, restarting randomly (apparently) when starting the WiFi. Sometimes when I set the BOD to 2.6V, the ESP32 keeps restarting endlessly (but sometimes it restarts 5-10x and stops), however, when I change to 2.1V and return to 2.6V, it stops !!!! (sometimes t...
by urbanze
Fri Dec 01, 2017 12:08 pm
Forum: General Discussion
Topic: ESP32 Automatic flash error
Replies: 10
Views: 15577

Re: ESP32 Automatic flash error

I added a capacitor as mentioned in a post (https://github.com/espressif/esptool/issues/136) and it worked.

So I already have two ways to make it work: pressing the button or adding a capacitor between EN and GND.

But is there no way to set the times between DTR and RTS to "get around" this bug?
by urbanze
Fri Dec 01, 2017 11:28 am
Forum: General Discussion
Topic: ESP32 Automatic flash error
Replies: 10
Views: 15577

Re: ESP32 Automatic flash error

I have tested the commands by ESPTOOL.PY itself and all commands are working (activating and deactivating the pins as programmed). I tried several delays and ways to make it work, but the boot just does not happen. However if done manually it happens. I think I need to go to the oscilloscope, but wi...
by urbanze
Fri Dec 01, 2017 1:42 am
Forum: General Discussion
Topic: ESP32 Automatic flash error
Replies: 10
Views: 15577

Re: ESP32 Automatic flash error

I'm not familiar with your board, but if it's like the Espressif ESP32 Core Board, the auto-programming is handled by two transistors hooked to the RTS and DTR lines of the onboard USB to serial bridge IC. Have you verified that the DTR and RTS lines are toggling when you attempt to flash? If not i...
by urbanze
Fri Nov 24, 2017 1:56 pm
Forum: General Discussion
Topic: ESP32 Automatic flash error
Replies: 10
Views: 15577

Re: ESP32 Automatic flash error

The procedure to enter the bootloader mode is quite simple: press and hold the BOOT button press and release the EN button release the BOOT button. Flash your firmware. You don't need to change anything. I know about this, but the question is "why automatic doens't work?" My last nodemcu trigger DT...
by urbanze
Fri Nov 24, 2017 11:32 am
Forum: General Discussion
Topic: ESP32 Automatic flash error
Replies: 10
Views: 15577

Re: ESP32 Automatic flash error

ESP_Sprite wrote:What board do you use? You're talking about an ESP32 but that is only the chip.
Sorry, I forget. It's NodeMCU-32 DoIT, see photo:
(both can't flash without press button)

https://i.imgur.com/753Skhk.jpg
Image