Search found 378 matches

by Deouss
Tue May 21, 2019 3:05 am
Forum: General Discussion
Topic: New Chip ESP32-S2
Replies: 7
Views: 188

Re: New Chip ESP32-S2

I have a feeling there will be also same chip with 2 cores and maybe BT
LCD and camera support looks great - I hope it is not through I2S only.
Also if all that extra 128MB spiram is fully addressable in continuous blocks this is a huge hardware improvement.
by Deouss
Fri May 17, 2019 11:27 pm
Forum: General Discussion
Topic: Two Esp32 modules sharing same memory
Replies: 1
Views: 164

Two Esp32 modules sharing same memory

Is it possible to connect two separate Esp32 modules in a way that they could share and access same memory?
If so - how? And would it be easy to implement in SDK?
by Deouss
Thu May 09, 2019 3:25 pm
Forum: Showcase
Topic: I2S-parallel example: Drive a 64x32 display
Replies: 60
Views: 28304

Re: I2S-parallel example: Drive a 64x32 display

I wonder if the display process can be done only by CPU. I tried to drive it without I2S and it worked however my panel seems to have very strange behavior. There is something related to OE pin - must be triggered after every row or I am doing something wrong. They specify OE as active low so it act...
by Deouss
Thu May 02, 2019 11:55 am
Forum: ESP32 IDF
Topic: Setting up Visual Studio Code for ESP32 IDF
Replies: 14
Views: 13580

Re: Setting up Visual Studio Code for ESP32 IDF

Hey CalinB!
Thanks for your input! I will definitely look at those tools because VSC needs some extension that would make things easier for esp development. Intellisense should be more filtered just to the project objects.
Thanks again!
by Deouss
Wed May 01, 2019 10:25 pm
Forum: ESP32 IDF
Topic: Setting up Visual Studio Code for ESP32 IDF
Replies: 14
Views: 13580

Re: Setting up Visual Studio Code for ESP32 IDF

Updated links to newest version (as of right now) ;)
by Deouss
Tue Apr 30, 2019 3:16 am
Forum: Sample Code
Topic: Simple ULP Blink Example
Replies: 4
Views: 1216

Re: Simple ULP Blink Example

I managed to modify the blink code and compile with CMake and latest ESP-IDF )
It was necessary to upgrade Idf to the latest version - newest toolchain comes with full ULP support and even nice examples which is very nice. I used just VSC and CMake (Win10) - no need for PlatformIO ;)
by Deouss
Sat Apr 20, 2019 2:43 pm
Forum: Sample Code
Topic: Simple ULP Blink Example
Replies: 4
Views: 1216

Re: Simple ULP Blink Example

The idea is to compile ulp.s file into binary and load it with code.
Simple task but not easy. There is nothing explained how to use binutils-esp32ulp
by Deouss
Sat Apr 20, 2019 1:35 pm
Forum: Sample Code
Topic: Simple ULP Blink Example
Replies: 4
Views: 1216

Re: Simple ULP Blink Example

Any ideas how I use it without PlatformIO and under Windows additionally with CMake?
by Deouss
Mon Apr 15, 2019 1:14 pm
Forum: General Discussion
Topic: Maximum performance of CPU only
Replies: 2
Views: 308

Maximum performance of CPU only

Let's say I want to do some very heavy calculations as fast as possible by esp CPU. After calculations also need to perform super fast bit-banging - unfortunately there is no work around. During that time nothing can interrupt of interfere with that calculations. How to properly achieve that? What i...
by Deouss
Sun Apr 14, 2019 1:49 am
Forum: General Discussion
Topic: WS2812B - timings and accuracy
Replies: 3
Views: 363

Re: WS2812B - timings and accuracy

I managed to display RGB full color bitmap from PC - actually a 8x32pixels chunk. However the picture looks very very bright - seems like colors need calibration - I think it is contrast and saturation. I must check that later Here is the code that may help to experiment with SPI and WS281B matrix: ...

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