Search found 41 matches

by pataga
Sun Oct 08, 2017 5:14 am
Forum: ESP32 IDF
Topic: i2s parallel interface to monochrome lcd with 4bit data bus
Replies: 16
Views: 9437

i2s parallel interface to monochrome lcd with 4bit data bus

Thought I would post as a separate topic rather than reply to the i2s parallel led panel thread as it's a bit of a digression. I have a few monochrome 240x160 lcds lying around that I have used with a Microchip PIC24 microcontroller with a built-in lcd controller peripheral. The lcd interface signal...
by pataga
Wed Sep 27, 2017 6:01 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 373
Views: 160313

Re: What would you like to see in The Next Chip?

I think there are a couple of use-cases for finer grained clock frequency control. 1. use of the radio is only for OTA firmware upgrades and running diagnostics. E.g. weather sealed applications, or other situations like automobile interiors where you need a wire-free interface. 2. data logging appl...
by pataga
Tue Sep 26, 2017 5:27 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 373
Views: 160313

Re: What would you like to see in The Next Chip?

I know we're getting lots of features for a low price. But I can't understand why some fundamental things that we take for granted when using even cheaper micros from STM, NXP etc., are not possible 1. finer grained clock frequency control , with pll-mult and pll-div, should be able use bog standard...
by pataga
Fri Sep 08, 2017 4:28 am
Forum: Report Bugs
Topic: esp-idf-template-master sample program not working
Replies: 18
Views: 8607

Re: esp-idf-template-master sample program not working

Try soldering a large low ESR (low series resistance) capacitor e.g. 220uF tantalum 6.3V directly across the ESP32 3V3 and GND pins as close to the ESP32 as possible. This will act as a storage tank for current spikes so the voltage will not drop enough to cause a brownout, even when the regulator o...
by pataga
Thu Sep 07, 2017 10:52 am
Forum: Report Bugs
Topic: unable to build using arduino-esp32 as a component in esp-idf project
Replies: 0
Views: 1750

unable to build using arduino-esp32 as a component in esp-idf project

I followed the instructions at https://github.com/espressif/arduino-esp32/blob/master/docs/esp-idf_component.md?fref=gc&dti=1045834672128146 with a fresh copy of esp-idf. Made a copy of esp-idf-template, added the components directory and cloned esp32-arduino into /components/arduino. Changed main/m...
by pataga
Fri Sep 01, 2017 11:09 am
Forum: Sample Code
Topic: Web server displaying frames from OV7670 + FIFO camera module
Replies: 0
Views: 1513

Web server displaying frames from OV7670 + FIFO camera module

esp32-idf project code at https://github.com/har-in-air/ov7670fifo This uses modified pieces of code that I picked up from browsing this forum and elsewhere (check out the README.md file on the github page). But good to have in one project a working example that has these features : 1. sets up as st...
by pataga
Wed Aug 30, 2017 8:27 am
Forum: ESP32 IDF
Topic: how to build a project with just FreeRTOS support (no wifi, tcpip stack etc.)
Replies: 4
Views: 2414

Re: how to build a project with just FreeRTOS support (no wifi, tcpip stack etc.)

Thanks ESP_Sprite for taking the time to answer, this is what I was looking for. I know the unused components should not get linked in, but it's a massive pain doing a make clean && make or make menuconfig && make... I realized everything in the components directory in esp-idf was getting built, but...
by pataga
Tue Aug 29, 2017 7:34 am
Forum: ESP32 IDF
Topic: how to build a project with just FreeRTOS support (no wifi, tcpip stack etc.)
Replies: 4
Views: 2414

how to build a project with just FreeRTOS support (no wifi, tcpip stack etc.)

Hi, I'm trying to build a project template that only uses rom functions, peripheral libraries (timer, i2c, i2s, spi etc.), plus dual-core FreeRTOS api. With 'make menuconfig' I have disabled Wifi, ethernet, bluetooth, AWS. However, when I then build a simple main.c that just toggles an led, I see th...
by pataga
Tue Aug 15, 2017 9:08 am
Forum: Showcase
Topic: ESP32 Webradio
Replies: 185
Views: 152223

Re: ESP32 Webradio

Hi BuddyCasino, I tried tweaking task priorities, increasing dummy spiram fifo size, increasing the number of Wifi RX buffers etc. None of them worked, but the following trial and error hack seems to have mitigated the buffer under flow problem for me : \audio_player\audio_player.c uint8_t fill_leve...
by pataga
Mon Aug 14, 2017 7:30 am
Forum: Showcase
Topic: ESP32 Webradio
Replies: 185
Views: 152223

Re: ESP32 Webradio

OK thanks BuddyCasino, will try this out.