Problem with the spi_bus_initialize

[mfrech]

Hello,

I would like to use the hello world example from this code (https://github.com/manuelbl/ttn-esp32/tree/master).

I’ve been trying for days to get my ESP32 Dev 38 pins to work with an RFM95W 868 MHz so that I can use the TTN. Unfortunately I can’t get any further and I’m desperate.

Code: Select all

Rebooting…
ets Jul 29 2019 12:21:46

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:7076
load:0x40078000,len:15584
ho 0 tail 12 room 4
load:0x40080400,len:4
load:0x40080404,len:3876
entry 0x4008064c
I (31) boot: ESP-IDF 5.1.2 2nd stage bootloader
I (31) boot: compile time Feb 13 2024 20:19:42
I (31) boot: Multicore bootloader
I (35) boot: chip revision: v3.1
I (39) boot.esp32: SPI Speed : 40MHz
I (44) boot.esp32: SPI Mode : DIO
I (48) boot.esp32: SPI Flash Size : 4MB
I (53) boot: Enabling RNG early entropy source…
I (58) boot: Partition Table:
I (62) boot: ## Label Usage Type ST Offset Length
I (69) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (76) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (84) boot: 2 factory factory app 00 00 00010000 00100000
I (91) boot: End of partition table
I (96) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=0c974h ( 51572) map
I (123) esp_image: segment 1: paddr=0001c99c vaddr=3ffb0000 size=022dch ( 8924) load
I (127) esp_image: segment 2: paddr=0001ec80 vaddr=40080000 size=01398h ( 5016) load
I (131) esp_image: segment 3: paddr=00020020 vaddr=400d0020 size=1fc10h (130064) map
I (184) esp_image: segment 4: paddr=0003fc38 vaddr=40081398 size=0d3e0h ( 54240) load
I (214) boot: Loaded app from partition at offset 0x10000
I (214) boot: Disabling RNG early entropy source…
I (226) cpu_start: Multicore app
I (226) cpu_start: Pro cpu up.
I (226) cpu_start: Starting app cpu, entry point is 0x400823ac
I (213) cpu_start: App cpu up.
I (244) cpu_start: Pro cpu start user code
I (244) cpu_start: cpu freq: 160000000 Hz
I (244) cpu_start: Application information:
I (249) cpu_start: Project name: ttn2
I (254) cpu_start: App version: 1
I (258) cpu_start: Compile time: Feb 13 2024 20:17:56
I (264) cpu_start: ELF file SHA256: 7342b1c3f19e0436…
I (270) cpu_start: ESP-IDF: 5.1.2
I (275) cpu_start: Min chip rev: v0.0
I (279) cpu_start: Max chip rev: v3.99
I (284) cpu_start: Chip rev: v3.1
I (289) heap_init: Initializing. RAM available for dynamic allocation:
I (296) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (302) heap_init: At 3FFB3070 len 0002CF90 (179 KiB): DRAM
I (309) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (315) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (321) heap_init: At 4008E778 len 00011888 (70 KiB): IRAM
I (329) spi_flash: detected chip: generic
I (332) spi_flash: flash io: dio
I (337) app_start: Starting scheduler on CPU0
I (341) app_start: Starting scheduler on CPU1
I (341) main_task: Started on CPU0
I (351) main_task: Calling app_main()
E (371) spi: spi_bus_initialize(776): intr flag not allowed
ESP_ERROR_CHECK failed: esp_err_t 0x102 (ESP_ERR_INVALID_ARG) at 0x400d155a
file: “src/main.cpp” line 91
func: void app_main()
expression: err

I use plattformio as the IDE. When it comes to pin assignment and plugging, I’m actually sure that it fits. The names of the pins are on the RFM95W and I found this graphic for the ESP32.

https://arduino-projekte.info/produkt/n ... p32-38pin/

I also ran the following code from https://randomnerdtutorials.com/esp32-s ... 2-spi-pins to check this.

Code: Select all

Rui Santos
Complete project details at ESP32 SPI Communication: Pins, Multiple SPI, Peripherals (Arduino) | Random Nerd Tutorials

Permission is granted hereby, free of charge, to any person obtaining a copy
of this software and associated documentation files.

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
*/

//Find the default SPI pins for your board
//Make sure you have the right board selected in Tools > Boards
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.print("MOSI: ");
Serial.println(MOSI);
Serial.print("MISO: ");
Serial.println(MISO);
Serial.print("SCK: ");
Serial.println(SCK);
Serial.print("SS: ");
Serial.println(SS);
}

void loop() {
// put your main code here, to run repeatedly:
}

The error message says that the arguments of the called function are incorrect. Unfortunately, after my research I can’t get any further. I hope the information is sufficient and thank you very much.