Search found 18 matches

by E.U.A.
Sat Sep 16, 2023 11:35 pm
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer with RLE

Hi jgustavoam! :) Well, even if I use I2S.setSckPin(cfg.gpio_clk_out ); to select LEDC pin after initialized ledc, Function does returns true BUT I2C do not work. Not detecting the clock pulses of LEDC. I think something changed internally and ESPRESSIF doesn't allow it anymore. Any officials could ...
by E.U.A.
Thu Sep 14, 2023 10:12 pm
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer with RLE

It looks like my project doesn't work after years. Probably some IDF changes. As I understand, I2S0.conf.rx_start = 1 do not start the I2S0 sampling. Do you know what is changed? Why my I2S DMA buffers doesn't filled? I just want to make it working again... But can't figure why it doesn't start to s...
by E.U.A.
Sun Mar 29, 2020 10:43 pm
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer with RLE

Hi jgustavoam, I think it's not needed. Only difference is using ps_malloc for access PSRAM. But the speed is not enough as I guessed. At my tests, 256k bytes takes ~8M cpu clocks to upload to PSRAM. Or takes ~125k clocks to upload 4K bytes,1 desc. It equals ~3.84Msps for 16bit mode. 2Mhz in SUMP sp...
by E.U.A.
Fri Mar 27, 2020 3:59 pm
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer with RLE

Hi,
I never saw them. Even you first posted.

I started working on WROVER at last.
Altering UART2 pins to gpio 12 and 13 let me use UART2 with ESP32-Ethernet-Kit-A_V1.1 FTDI chip's second UART.

I am gonna implement PSRAM but I don't think if the speed is enough. But might usable for lower speeds.
by E.U.A.
Sat Mar 14, 2020 12:34 am
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer with RLE

All RLE encoding is ready. Works on both 8Bit, ch1 & ch2 and 16Bit modes. Well... It works pretty good. Future plans: Dynamic buffer allocation. We don't need RLE buffer if RLE is not used. Also not need so big DMA buffer in RLE mode since it just capturing. Dual core encoding. Using second core wil...
by E.U.A.
Thu Mar 05, 2020 12:56 am
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer

Hello all. I am back. Get to the work. First of all, RLE code has been published. Well, it has some issues. RLE is currently only for 1.st channel, which is 8-bit only , well actually 7 bit due RLE bit. But looks working really good. Currently, code only captures 96 kbytes of RLE buffer, half of it ...
by E.U.A.
Thu Feb 20, 2020 10:53 am
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer

Hello. Thanks for input. I add pulling GPIO15 down to readme file. ... cfg.gpio_bus are set to -1 and commented ... because If let say enable GPIO7 for input 7, than ESP32 crash due SPI pins try to communicate with flash while occupied for input. You can select any GPIO pin that you want to use inst...
by E.U.A.
Thu Feb 13, 2020 10:22 am
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer

Ahahah :D me too! I am leaving now. Probably will back on 20th. But will play with circuits on vacation also, if I can.

PS: 20Mhz RLE 8 bit encoding is almost ready. Works proper until DMA ring buffer catches RLE encoder block while inspecting 20Mhz clock with jitter...

Happy vacations.
Bests.
by E.U.A.
Wed Feb 12, 2020 11:41 pm
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer

ESP_Sprite, thank you. I don't know this info.

jgustavoam, could you please try after clear RX buffer (with arduino serial or somethin) while pulling GPIO 15 down?
Probably it will work :)
by E.U.A.
Wed Feb 12, 2020 12:00 am
Forum: ESP32 Arduino
Topic: SUMP Compatible ESP32 Logic Analyzer with RLE
Replies: 45
Views: 74762

Re: SUMP Compatible ESP32 Logic Analyzer

Hi jgustavoam, I still don't understand why I can't use Serial1 . Okay. Than you will clearly understand why. The reason is, generally, ESP32 development boards, at least that I have, has USB-to-TTL UART chip on the board that DTR line connected to reset pin of the module. Means, when you try to ope...