Re: [sigrok-devel] Protocol decoder for WS2812B RGB LED

2017-05-13 Thread Uwe Hermann
Hi, can you provide a few more .sr files for the sigrok-dumps repo (and/or also test-cases for sigrok-test) please? We should make sure the PD covers all relevant cases and will do so in the future (regression tests). Thanks! -- http://hermann-uwe.de | http://randomprojects.org | http://sigrok.

Re: [sigrok-devel] Protocol decoder for WS2812B RGB LED

2017-05-11 Thread Jan Losinski
Hello, I've a setup with an ESP8266 running FastLED and some WS2812B. The LEDs act correctly (besides some flickering that I tried to debug - which seems to be an issue with interrupts on the ESP). The PD did not found any "1" Bit before the first LED or somewhere later in the chain. With the timi

Re: [sigrok-devel] Protocol decoder for WS2812B RGB LED

2017-05-10 Thread Vladimir Ermakov
Hello Jan, I actually tested that decoder on WS2812B (when i writing driver for STM32F373). I decided to use duty cycle to be frequency independent, that approach should work fine with slower versions (400 kbit/s), but yes, it may incorrectly decode if you have longer T1L. But i don't seen that p