Search found 2065 matches

by ESP_Sprite
Fri Dec 07, 2018 2:04 am
Forum: ESP32 IDF
Topic: Cannot mount more than two FATFS partitions
Replies: 3
Views: 157

Re: Cannot mount more than two FATFS partitions

If you want, you can open an issue on Github about this, as a feature request to put these things into Menuconfig.
by ESP_Sprite
Fri Dec 07, 2018 2:03 am
Forum: ESP32 IDF
Topic: 怎么通过i2s_read_bytes()函数读取mic数据啊?
Replies: 5
Views: 206

Re: 怎么通过i2s_read_bytes()函数读取mic数据啊?

Any chance you can play a sample (100Hz sine wave or so) into the microphone and dump some of the data you get back? Perhaps it's as simple as a timing issue or something.
by ESP_Sprite
Fri Dec 07, 2018 2:00 am
Forum: ESP32 MDF
Topic: ESP32 Mesh without router.
Replies: 2
Views: 149

Re: ESP32 Mesh without router.

Moved to MDF forum.
by ESP_Sprite
Fri Dec 07, 2018 1:56 am
Forum: ESP32 Arduino
Topic: I2C on Sparkfun ESP32; Pull-Up resistors not working. Ideas?
Replies: 2
Views: 120

Re: I2C on Sparkfun ESP32; Pull-Up resistors not working. Ideas?

Do you have a scope or LA to see what's going on on the I2C lines? Also, I'm moving your post to the Arduino subforum as that's what you seem to be using.
by ESP_Sprite
Thu Dec 06, 2018 2:26 am
Forum: ESP32 IDF
Topic: gettimeofday() returning erratic values
Replies: 2
Views: 132

Re: gettimeofday() returning erratic values

Fyi, gettimeofday is a posix function, and from what I know, the newlib implementation we use confirms to that. No idea why it jitters so much for you; are you sure you're reading the seconds field of tv and not accidentally the microseconds field?
by ESP_Sprite
Thu Dec 06, 2018 2:18 am
Forum: ESP32 IDF
Topic: 怎么通过i2s_read_bytes()函数读取mic数据啊?
Replies: 5
Views: 206

Re: 怎么通过i2s_read_bytes()函数读取mic数据啊?

Looks good, at first glance at least. Could you elaborate on 'cannot get the mic data'? What data do you get?
by ESP_Sprite
Thu Dec 06, 2018 2:11 am
Forum: General Discussion
Topic: Wifi performance
Replies: 2
Views: 164

Re: Wifi performance

You're more-or-less measuring the latency of the entire chain by waiting for a response to get back to you. Better to send a whole slew of packets and waiting asynchroneously for them to be acked; that's how TCP/IP normally does it. Or use the iperf example if you want to evaluate what the hardware ...
by ESP_Sprite
Thu Dec 06, 2018 2:09 am
Forum: General Discussion
Topic: Simple button deep sleep on/off functionality
Replies: 1
Views: 122

Re: Simple button deep sleep on/off functionality

Write your program to watch the button GPIO. If it detects it's pressed, go into deep sleep and configure that GPIO as a wakeup source.
by ESP_Sprite
Wed Dec 05, 2018 6:28 am
Forum: General Discussion
Topic: Memory to Memory transfer via DMA
Replies: 2
Views: 123

Re: Memory to Memory transfer via DMA

I think the intention was that you can use an I2S peripheral for this, possibly using the I2S_OUT_LOOP_TEST/I2S_IN_LOOP_TEST. However, we never actually used it or wrote an API for it as doing it using the CPU is faster in almost all circumstances, as the CPU can access the memory at full 240MHz spe...
by ESP_Sprite
Wed Dec 05, 2018 3:01 am
Forum: ESP32 IDF
Topic: how to debug rst:0x8 (TG1WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT) an arduino-esp32
Replies: 3
Views: 122

Re: how to debug rst:0x8 (TG1WDT_SYS_RESET),boot:0x17 (SPI_FAST_FLASH_BOOT) an arduino-esp32

First of all, if this is the Arduino SDK (and not ESP-IDF with added Arduino component), editing sdkconfig.h is not going to do anything, as Arduino comes with esp-idf precompiled. Secondly, the stub you see during upload is the download stub, not the GDB stub you are referring to. Thirdly, the gdb ...

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