Search found 208 matches

by f.h-f.s.
Mon Dec 17, 2018 4:21 pm
Forum: ESP32 Arduino
Topic: Automatic upload only working on some boards
Replies: 2
Views: 675

Re: Why is that?

It has to do with the bootmode of the board. See: https://github.com/espressif/esptool/wiki/ESP32-Boot-Mode-Selection#automatic-bootloader esptool.py can automatically enter the bootloader on many boards by using the RTS and DTR modem status lines to toggle GPIO0 and EN automatically. Development bo...
by f.h-f.s.
Mon Dec 17, 2018 4:16 pm
Forum: ESP32 IDF
Topic: WARNING: Padding with 12 bytes of random data (encrypted data must be multiple of 16 bytes long)
Replies: 2
Views: 651

Re: WARNING: Padding with 12 bytes of random data (encrypted data must be multiple of 16 bytes long)

probably that data is encrypted in blocks of 16bytes. When the warning comes up it is encrypting something that is not a multiple of 16bytes, here you have a remainder of 4 bytes. this is why a random padding is added with a length of 12 bytes ( 4bytes data + 12 bytes padding = 1 block of 16bytes).
by f.h-f.s.
Tue Sep 04, 2018 3:11 pm
Forum: ESP32 IDF
Topic: wifi: alloc eb len=76 type=2 fail after update esp-idf
Replies: 3
Views: 1380

Re: wifi: alloc eb len=76 type=2 fail after update esp-idf

I've had trouble with memory when my internal memory got below 30k, even though SPIRAM had alot of space left. You could check with

Code: Select all

// SPIRAM
heap_caps_log_heap_info(MALLOC_CAP_SPIRAM);
// INTERNAL RAM
heap_caps_log_heap_info(MALLOC_CAP_INTERNAL);
just a wild guess though, Goodluck.
by f.h-f.s.
Fri Aug 03, 2018 12:51 pm
Forum: General Discussion
Topic: How to store string in flash using SPI_FLASH_WRITE .
Replies: 1
Views: 916

Re: How to store string in flash using SPI_FLASH_WRITE .

I used the NVS for such tasks https://github.com/espressif/esp-idf/tr ... vs_rw_blob
It does not use spi_flash_write(dest_addr, src, size); directly though, the underlying calls do contain this function call.
by f.h-f.s.
Thu Aug 02, 2018 1:41 pm
Forum: General Discussion
Topic: Intercepting log and printf messages
Replies: 11
Views: 2608

Re: Intercepting log and printf messages

mikemoy wrote:the link does not work for me.

2018-08-02_6-47-08.jpg
You are searching for the repositories type? You really need to specify "&type=Code" "https://github.com/search?q=esp_log_set ... &type=Code"
by f.h-f.s.
Mon Jul 30, 2018 8:44 am
Forum: ESP32 Arduino
Topic: How to change task watchdog timeout?
Replies: 1
Views: 1281

Re: How to change task watchdog timeout?

I believe the esp-idf components are compiled into libraries for Arduino(see https://github.com/espressif/arduino-esp32/tree/master/tools/sdk/lib ). There is a option to change the task watchdog timeout in esp-idf under sdkconfig, but since for Arduino it is precompiled you might have to switch to u...
by f.h-f.s.
Mon Jul 30, 2018 7:59 am
Forum: General Discussion
Topic: ESP32 Sparkfun Reset with External Battery 3.7v
Replies: 2
Views: 644

Re: ESP32 Sparkfun Reset with External Battery 3.7v

Could it be that the battery connector accepts 5v and drops it to 3.3v for the esp32?
by f.h-f.s.
Mon Jul 23, 2018 11:22 am
Forum: General Discussion
Topic: (Noob) Schematic Question
Replies: 2
Views: 789

Re: (Noob) Schematic Question

Have a look at the DevKitC schematic at https://dl.espressif.com/dl/schematics/ ... V2_sch.pdf
I think the problem is located on your IO0 and EN lines, but that's just a guess. That schematic is a great reference though ;)
by f.h-f.s.
Tue Jul 17, 2018 8:46 am
Forum: General Discussion
Topic: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED, no way out...
Replies: 1
Views: 1072

Re: libusb_open() failed with LIBUSB_ERROR_NOT_SUPPORTED, no way out...

Why do you call openocd in msys2? http://esp-idf.readthedocs.io/en/latest ... ndows.html There you can find the windows binary for openocd.

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