Search found 567 matches

by PeterR
Fri Nov 13, 2020 10:49 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 390
Views: 193415

Re: What would you like to see in The Next Chip?

Interesting use/case. An off grid mesh agricultural sensor, sounds fun!
by PeterR
Fri Nov 13, 2020 9:36 pm
Forum: General Discussion
Topic: Using an HTTP GET method to download large files (upto 8MB) to an external EEPROM of ESP32-WROVERB
Replies: 8
Views: 484

Re: Using an HTTP GET method to download large files (upto 8MB) to an external EEPROM of ESP32-WROVERB

Pray that the HTTP client does the flow control. The emac task (ESP32 mac) will just malloc on frame (rather inefficientlty if you ask me) & close connection on fail. So if throughput is high and memory low.... I have only seen this become an issue on local loop. Network traffic is slower I guess. B...
by PeterR
Fri Nov 13, 2020 9:23 pm
Forum: General Discussion
Topic: ULP - 32 bits arithmetics
Replies: 5
Views: 1175

Re: ULP - 32 bits arithmetics

May be missing the difficulty but:
ntoh/hton
This seams an endian issue.
by PeterR
Fri Nov 13, 2020 5:59 pm
Forum: General Discussion
Topic: Whit tou use uint8_t buffer to receive uart data?
Replies: 5
Views: 354

Re: Whit tou use uint8_t buffer to receive uart data?

Yea, I agree. <stdint.h> types are a lot clearer about sizes & should be used (in our work). I never understood why printable data was a char (int8_t) because you cannot print much of that! 'C' was a great invention though. Some of us (back in the day) were also on PLM and FORTRAN. All respect to C ...
by PeterR
Fri Nov 13, 2020 5:02 pm
Forum: ESP-IDF
Topic: Sending passthrough command // problems in structural understanding
Replies: 3
Views: 220

Re: Sending passthrough command // problems in structural understanding

Embedded is hard and so even more fun than Java! Not sure why embedded gets paid less though*. BT is quite a hard starting point IMHO. Its a big fat stack with quite a few things to learn. Anyway - I am not an expert on core dumps. I can tell you though that typically core dumps which (as yours) do ...
by PeterR
Fri Nov 13, 2020 4:49 pm
Forum: ESP-IDF
Topic: Issues when using SPI SD card
Replies: 4
Views: 233

Re: Issues when using SPI SD card

Try a really, really slow SPI speed. Like 1MHz. This will help show that the issue is not hardware.
by PeterR
Thu Nov 12, 2020 7:44 pm
Forum: General Discussion
Topic: ESP32 Ints or Doubles to Strings
Replies: 8
Views: 1740

Re: ESP32 Ints or Doubles to Strings

Lol I would disagree in the sense 'now'. I am a real (as in old school) embedded programmer and firmly believe that hardware engineers (& other lower life forms looking to improve themself) find reasons to program ;). Good software engineers however look for ways not to program. We know what might g...
by PeterR
Mon Nov 09, 2020 1:12 am
Forum: General Discussion
Topic: Whit tou use uint8_t buffer to receive uart data?
Replies: 5
Views: 354

Re: Whit tou use uint8_t buffer to receive uart data?

https://stackoverflow.com/questions/40679801/difference-between-sizeofchar-and-sizeofchar/40679845 I guess the answer is one of symantics, that the data format is unknown, a char * suggests a string etc. A char is the same size as unit8_t (according to above). Both uses seem somewhat flawed IMHO bu...
by PeterR
Mon Nov 09, 2020 12:53 am
Forum: General Discussion
Topic: What ESP32-S3 brings and what we can talk about ESP32-S3 and few (new ) feat.
Replies: 9
Views: 1347

Re: What ESP32-S3 brings and what we can talk about ESP32-S3 and few (new ) feat.

So, marketing & warmers aside. When is the the official product description release? Is there one already or are we in marketing 'chum' mode? A cynic. EDIT: Guess a little unreasonable to ask above. Will settle with 'is there an official feature statement and/or market feature study'? & if so where ...
by PeterR
Sun Nov 08, 2020 7:23 pm
Forum: General Discussion
Topic: using 1000+ ESP32 units with Google Home Assistant
Replies: 3
Views: 363

Re: using 1000+ ESP32 units with Google Home Assistant

IMHO you should have tried this idea with one ESP32 before you went ahead and bought 1000+. Lol. And I thought it was SPRITE who was harsh. A good net security man will cost you. A bad security man will cost you as well, just a little latter when you loose your brand. but it ended up having serious...

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