Problems with gpio_install_isr_service / ESP_INTR_FLAG_IRAM

[marcel151]

I got the same problem as in the following closed issue: https://github.com/manuelbl/ttn-esp32/issues/13

"'ESP_INTR_FLAG_IRAM' was not declared in this scope [64,11]" "'gpio_install_isr_service' was not declared in this scope [64,36]"

I am using PlatformIO so I don't know how to use another version of ESP-IDF.

My system: macOS 10.15.4 VSCode 1.45.1 PlatformIO Core 4.3.3 - Home 3.2.2 ESP-IDF 3.40000.200303

I am relatively new to PlatformIO, so I hope I didn't do anything wrong. I just followed your Get-Started Guide (https://github.com/manuelbl/ttn-esp32/wiki/Get-Started) and did anything you mentioned.

[manuelbl]

I'm afraid I can't help you with PlatformIO. I'm struggling myself to get it working. As far as I can tell, the PlatformIO builder is not capable of using third-party components.

If you want to experiment yourself, you definitely want to use the dev branch of this library.

[vrees]

I had same and some more problems to get ttn-esp32 running using platformio and esp-idf. But now its working. See working example see here: https://github.com/vrees/Esp32LoraBoard

To get it running I had to change following:

• copied dev branch of ttn-esp32 in lib subdir of my platformio project
• in main.cpp #include "driver/gpio.h" in oder to get rid of error mentioned by @marcel151
• Due to a problem wth AES encryption "undefined reference to lmic_aes_encrypt" I had to switch to software encryption by changing 2 files. This works for me just now. Does somebody know how to use hardware encryption correctly?

src/lmic/config.h

define USE_ORIGINAL_AES

__src/aes/lmic_aes.c__ line 260: u4_t t0, t1=0, t2, t3;

• added shutdown method to reduce deep sleep current of Lora chip

void TheThingsNetwork::shutdown() { ttn_hal.enterCriticalSection(); LMIC_shutdown(); waitingReason = eWaitingNone; if (lmicEventQueue != nullptr) { xQueueReset(lmicEventQueue); } ttn_hal.leaveCriticalSection(); }

My system: VSCode 1.45.1 Espressif 32 Platform displayed in 'PIO Home' 1.12.1 Linux Mint

[manuelbl]

I've updated the wiki Page Using PlatformIO with the latest information about using PlatformIO.