Search found 127 matches

by gunar.kroeger
Mon Oct 21, 2019 6:08 pm
Forum: General Discussion
Topic: how to configure PlatformIO ESP32 project for CoreDump
Replies: 5
Views: 758

Re: how to configure PlatformIO ESP32 project for CoreDump

You have to enable core dump to flash in menuconfig, edit the partitions.csv to include a coredump partition and then call espcoredump.py It's described in this page: https://docs.espressif.com/projects/esp-idf/en/v3.2.2/api-guides/core_dump.html I've tried to follow these steps this weekends but wa...
by gunar.kroeger
Mon Oct 14, 2019 8:56 pm
Forum: ESP32 IDF
Topic: Increase SD frequency clock with SPI mode to 40MHz
Replies: 4
Views: 646

Re: Increase SD frequency clock with SPI mode to 40MHz

I have tried to change from HSPI to VSPI but I still can't enable 40MHz to the SD card. Maybe I'm missing some configuration step. Any hints?
by gunar.kroeger
Tue Oct 08, 2019 5:28 pm
Forum: ESP32 IDF
Topic: Increase SD frequency clock with SPI mode to 40MHz
Replies: 4
Views: 646

Re: Increase SD frequency clock with SPI mode to 40MHz

Ah, I think the issue is that we are using HSPI but the pins are connected to the VSPI
by gunar.kroeger
Tue Oct 08, 2019 5:23 pm
Forum: ESP32 IDF
Topic: Increase SD frequency clock with SPI mode to 40MHz
Replies: 4
Views: 646

Re: Increase SD frequency clock with SPI mode to 40MHz

Hi ESP_igrr, We are using the correct pins so that we could use the SPI bus without the GPIO_MUX, so shouldn't we be able to get to 80MHz even in Full-duplex mode? //----------SPI #define PIN_MISO_V4A GPIO_NUM_19 #define PIN_MOSI_V4A GPIO_NUM_23 #define PIN_CLK_V4A GPIO_NUM_18 #define PIN_CS_V4A GPI...
by gunar.kroeger
Tue Oct 08, 2019 3:33 pm
Forum: ESP32 IDF
Topic: Increase SD frequency clock with SPI mode to 40MHz
Replies: 4
Views: 646

Increase SD frequency clock with SPI mode to 40MHz

Hi, I'm trying to increase the frequency clock of my SD card to 40MHz. I have a SD card class 10 and UHS-I , which is supposed to work with clock speeds up to 50MHz, according to this https://panasonic.net/cns/sdcard/industrial_sd/performance.html I am defining the host as presented below: sdmmc_hos...
by gunar.kroeger
Thu Sep 26, 2019 7:05 pm
Forum: General Discussion
Topic: ESP_LOG giving a panic error
Replies: 7
Views: 667

Re: ESP_LOG giving a panic error

you can't call logging library from inside an interrupt. For debugging, try to toggle a LED or another gpio.
by gunar.kroeger
Wed Sep 25, 2019 9:26 pm
Forum: General Discussion
Topic: Flashing an ESP32 with another ESP32
Replies: 4
Views: 645

Re: Flashing an ESP32 with another ESP32

Hi @PeterR, If you could send your source it would help a lot! We are already working on a solution based on the OTA example, but being able to flash the espB without it having any firmware on it would be more flexible and would speed up production as well. Please let me know if you can send me the ...
by gunar.kroeger
Wed Sep 25, 2019 4:19 pm
Forum: General Discussion
Topic: Flashing an ESP32 with another ESP32
Replies: 4
Views: 645

Flashing an ESP32 with another ESP32

We have 2 esp32 connected through UART. Let's call them esp32A and esp32B. esp32A has a SD card connected with the firmware.bin for esp32B. esp32A also has connection to the reset and boot pins of esp32B. How can I port the protocol implemented by esptool.py to flash firmware.bin into esp32b? the si...
by gunar.kroeger
Wed Aug 28, 2019 4:42 pm
Forum: ESP32 IDF
Topic: Firmware update with LwM2M.
Replies: 1
Views: 588

Re: Firmware update with LwM2M.

I'm also interested in this topic. Have you been able to do something with LwM2M yet?
I found this post: http://uhurumkate.blogspot.com/2019/02/ ... lwm2m.html but he does not share his code I think
by gunar.kroeger
Fri Aug 16, 2019 6:06 pm
Forum: ESP32 IDF
Topic: Problems porting Reliance Edge File System to ESP32 - No Persistence
Replies: 0
Views: 380

Problems porting Reliance Edge File System to ESP32 - No Persistence

I'm trying use the Reliance Edge library to a project I'm developing with ESP32, which is a fail-safe file system for SD cards. I have found a GitHub project that ports the library to ESP32, but I'm having some issues trying to persist a written file. My application is just initializing the port lib...

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