Search found 6 matches

by wperw1
Tue Mar 31, 2020 6:41 pm
Forum: ESP32 IDF
Topic: How to get data from Terminal?
Replies: 2
Views: 775

Re: How to get data from Terminal?

Hi, what type of board are you using? I assume that you are using a board with a USB <-> Serial converter, it's right? If yes then you need a terminal emulator software like putty https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html to enstabilish the connection on the PC side. On the esp ...
by wperw1
Mon Mar 30, 2020 8:23 pm
Forum: ESP32 IDF
Topic: [HELP!] ESP32 I2C Hardware or Bitbang?
Replies: 0
Views: 782

[HELP!] ESP32 I2C Hardware or Bitbang?

Hi everyone, in theese days I'm trying to talk over i2c to a bno 055 produced by Bosch. The problem in getting it work with ESP32 is that the bno 055 use clock-stretching that make ESP32 to go into timeout as i2c master also at 10kHz. Checking the communication with Pulseview I've noticed that the c...
by wperw1
Sun Dec 30, 2018 9:10 pm
Forum: ESP32 IDF
Topic: HELP with strange SPI issue
Replies: 4
Views: 1614

Re: HELP with strange SPI issue

Problem persist, but I haven't find a solition. Can anyone help me?
by wperw1
Thu Oct 25, 2018 9:27 pm
Forum: ESP32 IDF
Topic: HELP with strange SPI issue
Replies: 4
Views: 1614

Re: HELP with strange SPI issue

After a lot of time and hours at work I was able to find the time for modify the code as suggested. The function object of the modify is the SPI_Writethat i report below Old function: void IRAM_ATTR SPI_Write(uint8_t value, EPDDriverParams_t *driver) { esp_err_t ret; spi_device_handle_t disp_spi = (...
by wperw1
Wed Oct 03, 2018 11:41 am
Forum: ESP32 IDF
Topic: HELP with strange SPI issue
Replies: 4
Views: 1614

Re: HELP with strange SPI issue

ESP_Sprite wrote:That's a strange thing... I see you're using the polling transmit function, does it also does that if you use the 'normal' SPI transmit function?
Thanks for the fast response, I don't know, I'll try in this week to change from polling to interrupt.
After the test I'll post the results.
by wperw1
Sun Sep 30, 2018 7:28 pm
Forum: ESP32 IDF
Topic: HELP with strange SPI issue
Replies: 4
Views: 1614

HELP with strange SPI issue

Hi to all, I'm new to the forum and I'm working on ESP32 for around one year. In this days I started to work with the 2.9" EPaper Display (EPD) from Waveshare https://www.waveshare.com/wiki/2.9inch_e-Paper_Module_(B) , it's an interesting SPI Screen with 3 color (Black White and Red) after some Goog...

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