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by ESP_Sprite
Mon Sep 25, 2017 2:34 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 86
Views: 3205

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

Agree007: That is an interesting idea. Do you have any thoughts on how this would work in practice?
by ESP_Sprite
Mon Sep 25, 2017 10:13 am
Forum: ESP32 SDK
Topic: WiFi Lora 32 board and ESP-IDF
Replies: 2
Views: 29

Re: WiFi Lora 32 board and ESP-IDF

Code: Select all

rtc_clk: Possibly invalid CONFIG_ESP32_XTAL_FREQ setting (40MHz). Detected 26 MHz.
is on point; your board probably has a 26MH crystal but your project is configured for a 40MHz one. Run make menuconfig and go to components -> esp32-specifc -> main xtal frequency to change this.
by ESP_Sprite
Mon Sep 25, 2017 8:43 am
Forum: General Discussion
Topic: Regulator ESP32 Deep Sleep
Replies: 4
Views: 40

Re: Regulator ESP32 Deep Sleep

For my personal projects, I like the HT7833. Not too expensive, has the 500mA output capacity I need, and sips 4uA quiescent current.
by ESP_Sprite
Mon Sep 25, 2017 8:40 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 86
Views: 3205

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

Leitukey: Again: your point is clear but offtopic and does not bear repetition in a location where we want a technical discussion to take place: I removed its contents.
by ESP_Sprite
Mon Sep 25, 2017 3:31 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 86
Views: 3205

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

I warned you in a PM that we do not accept offtopic ranting here: please keep to technical details. You have made your opinions about the direction you think Espressif is going in and your hopes/wishes/predictions re. our CEO loud and clear, no need to repeat them in every single post you make.
by ESP_Sprite
Mon Sep 25, 2017 1:58 am
Forum: ESP32 SDK
Topic: PSRAM support status
Replies: 27
Views: 1265

Re: PSRAM support status

FWIW, we have the code that allows for malloc() in external RAM almost ready, it should be merged shortly.
by ESP_Sprite
Mon Sep 25, 2017 1:21 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 86
Views: 3205

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

We are aware that there are bugs in the ESP32 silicon; the ECO document is proof of the fact that we're open about them. Making a new chip, however, does not mean we'll be throwing away all our old designs and starting from scratch again: a lot of the IP has migrated from the ESP8266 to the ESP32, a...
by ESP_Sprite
Sun Sep 24, 2017 2:46 am
Forum: ESP32 SDK
Topic: ESP32 IDF Linux and I2S
Replies: 6
Views: 100

Re: ESP32 IDF Linux and I2S

If I recall correctly (it's been a while since I wrote the code I quoted), the I2S-peripheral is operating in stereo 16-bit mode, meaning it will take a 32-bit word each sample time, and distribute the top 16 bit to the left and bottom 16 bit to the right channel. (Or vice versa, I don't entirely re...
by ESP_Sprite
Fri Sep 22, 2017 2:16 am
Forum: ESP32 SDK
Topic: ESP32 IDF Linux and I2S
Replies: 6
Views: 100

Re: ESP32 IDF Linux and I2S

Fwiw, this code works for me (I only use the left channel) i2s_config_t cfg={ .mode=I2S_MODE_DAC_BUILT_IN|I2S_MODE_TX|I2S_MODE_MASTER, .sample_rate=rate, .bits_per_sample=16, .channel_format=I2S_CHANNEL_FMT_RIGHT_LEFT, .communication_format=I2S_COMM_FORMAT_I2S_MSB, .intr_alloc_flags=0, .dma_buf_coun...
by ESP_Sprite
Fri Sep 22, 2017 12:27 am
Forum: ESP32 SDK
Topic: ESP32 IDF Linux and I2S
Replies: 6
Views: 100

Re: ESP32 IDF Linux and I2S

You may want to add something like i2s_set_dac_mode(I2S_DAC_CHANNEL_LEFT_EN);

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