Heltec memory problem

Malandruss · March 11, 2020, 8:08pm

Hello guys, I’m starting on platformIO with the heltec esp32 lora V2 card. I have a strange problem that I can’t understand:
“*** [.pio/build/heltec_wifi_lora_32_V2/partitions.bin] Source default_8MB.csv' not found, needed by target .pio/build/heltec_wifi_lora_32_V2/partitions.bin’.”

I was able to get around this problem using a generic ‘esp wrover kit’ which, when uploading the code, automatically detected the flash size. But I want to learn how to fix this “8MB” problem on the heltec board. Can anybody help me?

This link Heltec WiFi LoRa 32 — PlatformIO latest documentation demonstrates the use of the .json file, but I was unable to understand how to configure the flash size.

thank you guys!!

maxgerhardt · March 11, 2020, 8:16pm

Wrong doc link, the right one is for the V2 version.

Anyhow, its board.json says

github.com

platformio/platform-espressif32/blob/master/boards/heltec_wifi_lora_32_V2.json#L12


      
          "build": {
            "arduino":{
              "ldscript": "esp32_out.ld",
              "partitions": "default_8MB.csv"
            },
            "core": "esp32",
            "extra_flags": "-DARDUINO_HELTEC_WIFI_LORA_32_V2",
            "f_cpu": "240000000L",
            "f_flash": "40000000L",
            "flash_mode": "dio",
            "mcu": "esp32",
            "variant": "heltec_wifi_lora_32_V2"
          },
          "connectivity": [
            "wifi",
            "bluetooth",
            "ethernet",
            "can"
          ],
          "debug": {
            "openocd_board": "esp-wroom-32.cfg"

This file is originally found in Arduino-ESP32 and not ESP-IDF:

https://raw.githubusercontent.com/espressif/arduino-esp32/master/tools/partitions/default_8MB.csv

So please just download this file into your project folder and see if compilation goes through now.

Malandruss · March 12, 2020, 12:39pm

I’m sorry but I didn’t make it. I thought about creating the file “default_8MB.csv” inside the folder [.pio / build / heltec_wifi_lora_32_V2 / partitions.bin] but it didn’t work. Could you teach me how to fix?

cnmicha · January 5, 2021, 3:26pm

I have the same problem. Does anyone have a solution?

maxgerhardt · January 5, 2021, 6:47pm

Did you try this? What’s the error message?