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by ESP_igrr
Tue Sep 18, 2018 3:24 pm
Forum: General Discussion
Topic: Sleep a core
Replies: 1
Views: 13

Re: Sleep a core

You can enable single core mode ("run freertos on first core only" option) in menuconfig. With this option enabled, APP CPU will be clock gated. This will give you a few mA of current savings.
It is not possible to power down APP CPU separately from PRO CPU.
by ESP_igrr
Tue Sep 18, 2018 3:21 pm
Forum: General Discussion
Topic: unused code hangs program
Replies: 14
Views: 240

Re: unused code hangs program

It seems that you have enabled verbose log level for the bootloader, but not for the app? This is a separate setting under menconfig > component config > log. Please give it a try.
by ESP_igrr
Tue Sep 18, 2018 3:18 pm
Forum: General Discussion
Topic: ESP32-SOLO-1 on DevKitC_V4 not working
Replies: 1
Views: 11

Re: ESP32-SOLO-1 on DevKitC_V4 not working

ESP32-SOLO is a single core module, so you need to enable "Run FreeRTOS on first core only" option in menuconfig, under component config > freertos.
by ESP_igrr
Tue Sep 18, 2018 12:24 pm
Forum: General Discussion
Topic: ESP32 debugging with Segger Jlink
Replies: 1
Views: 97

Re: ESP32 debugging with Segger Jlink

It is possible to use JLink debugger (hardware part of it) for ESP32. Please follow this guide: https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/jtag-debugging/index.html. Note that JLink software is not compatible with ESP32, so you will need to follow the steps described in that gu...
by ESP_igrr
Mon Sep 17, 2018 11:41 pm
Forum: General Discussion
Topic: unused code hangs program
Replies: 14
Views: 240

Re: unused code hangs program

Also, try setting log level to verbose, and see if there is any more useful output from the startup code. This might indicate where things go wrong.
by ESP_igrr
Mon Sep 17, 2018 3:07 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 235

Re: Enable Time stamp on FatFs SD card

Well, you say above that you are getting FR_NO_PATH error, and then you say that the path is certainly correct... but if it was correct, FATFS would not be returning this error, right? get_fattime function is implemented in fatfs component of ESP-IDF, if you implement another copy in your applicatio...
by ESP_igrr
Sun Sep 16, 2018 1:42 pm
Forum: ESP32 IDF
Topic: Enable Time stamp on FatFs SD card
Replies: 10
Views: 235

Re: Enable Time stamp on FatFs SD card

What path are you passing to this function, can you give an example? And what is the actual path of the same file on SD card?
by ESP_igrr
Sun Sep 16, 2018 9:44 am
Forum: ESP32 Arduino
Topic: SD card memory use
Replies: 11
Views: 672

Re: SD card memory use

This refers to FAT allocation unit size, i.e. the the sector size of the disk. It doesn't refer to RAM allocation.
by ESP_igrr
Sat Sep 15, 2018 12:54 am
Forum: General Discussion
Topic: How many times can you flash?
Replies: 11
Views: 1835

Re: How many times can you flash?

I think auto-detect implies accessing the flash memory to see where it ends. As WiFive mentioned, esptool.py detects flash size by reading flash chip ID, which itself is not stored in flash. If it reads 0xffffff from that register, it means that SPI communication between ESP32 and the flash chip is...
by ESP_igrr
Wed Sep 12, 2018 3:05 pm
Forum: General Discussion
Topic: Weird fgets and gets behavior
Replies: 3
Views: 64

Re: Weird fgets and gets behavior

By default, reading from stdin is non-blocking. If you install the UART driver, you should be able to do blocking reads. Please see examples/system/console for an example of how to enable blocking reads from stdin. Also please see https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/s...

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