Search found 513 matches

by loboris
Sat Apr 22, 2017 8:31 pm
Forum: ESP32 IDF
Topic: Need sample code for ILI9488 LCD on SPI Interface
Replies: 79
Views: 36275

Re: Need sample code for ILI9488 LCD on SPI Interface

Have you checked ILI9488 based LCD using SPI Master Example? Let me know once you check and get success into it. I'm working on it, but I don't have much free time at the moment. Apart from different init sequence, ILI9488 require 3 byte per color pixel... You can look at some Arduino library and t...
by loboris
Thu Apr 20, 2017 9:20 pm
Forum: Showcase
Topic: Whitecat ESP32 N1 board / Lua RTOS
Replies: 5
Views: 3907

Re: Whitecat ESP32 N1 board / Lua RTOS

The board looks interesting, but it will be hard to justify the price. Not to mention many boards for less than US$ 10 - 15, Pycom's LoPy is €29.95 compared to ESP32 N1 board price of €40. And the new FiPy will be €49 with included LTE CAT M1 / NB1, LoRa and 4MB RAM. Anyhow, I wish you much success ...
by loboris
Wed Apr 19, 2017 7:10 am
Forum: ESP32 IDF
Topic: Need sample code for ILI9488 LCD on SPI Interface
Replies: 79
Views: 36275

Re: Need sample code for ILI9488 LCD on SPI Interface

Ritesh wrote:Anyone has any update on this?
I have one ILI9488 based LCD Display module and will test it this weekend or early next week...
by loboris
Tue Apr 18, 2017 10:37 am
Forum: ESP32 IDF
Topic: SDMMC - different SPI Pins
Replies: 4
Views: 3535

Re: SDMMC - different SPI Pins

... Is this currently not running under SPI? ..it seamed that it is a SPI.. :shock: When .flags = SDMMC_HOST_FLAG_SPI is set, the driver uses default 1-line SD and MMC protocol . The only reason why SPI mode could be useful, as I see it, is the possibility to to attach sd card to different than def...
by loboris
Fri Apr 14, 2017 6:28 pm
Forum: Sample Code
Topic: Non DMA version of the spi_master driver
Replies: 14
Views: 9384

Re: Non DMA version of the spi_master driver

@qjones

I've updated the nondma spi driver.
Detailed comments are added to spi_nodma_transfer_data function to make it much easier to follow.
Please review and report if you find any more errors/bugs.

Best regards.
by loboris
Fri Apr 14, 2017 9:27 am
Forum: Sample Code
Topic: Non DMA version of the spi_master driver
Replies: 14
Views: 9384

Re: Non DMA version of the spi_master driver

... Also as you can see in the code below you are doing a similar check elsewhere however I am not sure if it was by accident of on purpose but you are setting the usr_miso flag to 1 in the if statement. Should this be an equality == operator instead? if ((duplex) && (host->hw->user.usr_miso = 1)) ...
by loboris
Sat Apr 08, 2017 4:12 pm
Forum: Sample Code
Topic: ESP32 playing sound example
Replies: 3
Views: 3219

Re: ESP32 playing sound example

I would recommend using 100 ohm resistor and 10uF (+ toward gpio) capacitor between GPIO and speaker or the gpio eventualy will be damaged.
by loboris
Mon Apr 03, 2017 6:20 pm
Forum: General Discussion
Topic: [Video] ESP32 - The ESP32 IRC channel
Replies: 12
Views: 6225

Re: [Video] ESP32 - The ESP32 IRC channel

Why not use Gitter https://en.wikipedia.org/wiki/Gitter
There is already espressif/arduino-esp32 chatroom https://gitter.im/espressif/arduino-esp32
by loboris
Fri Mar 31, 2017 1:00 pm
Forum: Hardware
Topic: ESP-32 WROOM module: conecting with FTDI
Replies: 2
Views: 6867

Re: ESP-32 WROOM module: conecting with FTDI

harshcht wrote:Can we connect the ESP 32 module with a FTDI (USB to serial converter) just the way we connect an esp8266?
If yes can anyone tell me how to do it. It would be a great help. Thanks in advance. :)
https://cdn.sparkfun.com/assets/learn_t ... ematic.pdf
by loboris
Thu Mar 30, 2017 10:37 pm
Forum: General Discussion
Topic: SPI Master Receive Problems
Replies: 19
Views: 10339

Re: SPI Master Receive Problems

Thanks Loboris. Do you know if the DMA problem was reported formally/officially to EspressIf? RSN I've only got the response from ESP_Sprite: My guess is that there is still some remaining state in the spi dma controller that does not get reset when the transmission has ended. Thanks for the hint o...

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