Search found 12 matches

by gecko242
Fri May 31, 2019 3:40 pm
Forum: Hardware
Topic: Device bricked ("csum err") after two months of service
Replies: 30
Views: 2380

Re: Device bricked ("csum err") after two months of service

Okay. Sounds like it may be fixed, although it would be nice to know the root mechanism as to why devices in noisy environments get bricked.

The immunity thing may be a red herring, but worth looking out for.

Can you share what you did differently between revisions in regards to GND coupling?

Sam
by gecko242
Wed May 29, 2019 9:44 am
Forum: Hardware
Topic: Device bricked ("csum err") after two months of service
Replies: 30
Views: 2380

Re: Device bricked ("csum err") after two months of service

No worries. Yeah, it does seem far fetched, but weirder things have happened. If power consumption isn't an issue, you could easily lower it. Okay, that makes sense. To clarify, the second batch of devices never overwrite their bootloader? Or they don't have any noise issues? Have you put the device...
by gecko242
Thu May 23, 2019 10:49 am
Forum: Hardware
Topic: Can't upload code to WROOM-32D
Replies: 2
Views: 956

Re: Can't upload code to WROOM-32D

You need a pull up on IO0 I believe.
Also, are you toggling the reset line?

Workflow should be:
Pull IO0 Low
Reset chip (or cycle power)
Release IO0
Initiate Download
cycle power when complete

Done!
by gecko242
Tue May 21, 2019 11:13 am
Forum: Hardware
Topic: Device bricked ("csum err") after two months of service
Replies: 30
Views: 2380

Re: Device bricked ("csum err") after two months of service

Could it be that 360k isnt aggressive enough of a pull down? One thing worth trying might be disabling the bootstrapping pins and forcing the flash voltage through the efuse, and then see if you get a failure? I dont know how long you have to run these before they typically fail. You mentioned that ...
by gecko242
Mon Mar 25, 2019 3:48 pm
Forum: ESP32 IDF
Topic: HTTPS Server Component Issues
Replies: 0
Views: 182

HTTPS Server Component Issues

Hi All, I am playing around with the HTTPS server component. I have it running, with certificates generated and flashed. The page sometimes loads, however I get a lot of the following error: https://imgur.com/gallery/MokCeO0 After some debugging, it seems that SSL_accept is failing, returning error ...
by gecko242
Thu Mar 21, 2019 8:55 am
Forum: General Discussion
Topic: Http post max size
Replies: 3
Views: 484

Re: Http post max size

Okay, spurred on by this post I have migrated my application webserver over to using the official HTTPD web server component. It seems to be much more responsive than my previous implementation of netconn/lwip. https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/protocols/esp_http_se...
by gecko242
Mon Mar 11, 2019 4:59 pm
Forum: General Discussion
Topic: Http post max size
Replies: 3
Views: 484

Re: Http post max size

This is familiar! I have this exact problem. I currently see if my length is between 400 and 600, and if I am after more data, I call netconn_recv() again. Whilst I have used this successfully on large (1MB+) WAV files, I too feel that this is clumsy and there must be a better way. That being said, ...
by gecko242
Wed Dec 19, 2018 12:34 pm
Forum: ESP32 IDF
Topic: HTTP Server with option to edit content of page.
Replies: 9
Views: 1502

Re: HTTP Server with option to edit content of page.

What PeterR has suggested will work.
You can also pass data around in an HTML Form, using POST/GET requests.
Handling it is relatively easy ESP side.
I suggest you read up on how websites/webservers talk. There are plenty of examples around doing what you want to achieve.
by gecko242
Thu Nov 15, 2018 8:13 am
Forum: ESP32 IDF
Topic: I2S and 8 Bit samples
Replies: 1
Views: 394

Re: I2S and 8 Bit samples

Any idea? I have tried simply removing the check, and allowing 8 bit samples, but it still wont work, i just get static/noise. 16Bit works no problem.
by gecko242
Thu Nov 08, 2018 10:47 am
Forum: ESP32 IDF
Topic: Dedicated or combined OTA
Replies: 26
Views: 3128

Re: Dedicated or combined OTA

Here, have a read of this. Ota is handled through 2 separate "ota" partitions.

https://docs.espressif.com/projects/esp ... m/ota.html

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