ESP32 Forum

Posted: **Sat Nov 18, 2023 7:15 pm**

<r>Hello, 
I am an amateur in C and an expert in electronic design since more then 30 years. 
I am working on a personal project on a MINI D1 ESP32 based on the module AZ-delivery EPS32-WROOM-32. 
The goal of this project is to convert 18 channels Spectrum audio analyser. 
Actually, the code is converting the right and left channels into 2048 FFT signals and crates the 18 channels to displays. These data have to be send to another MCU through a SPI single data. 
When the code try to send the first data, the MCU goes into panic mode and reboot. See below :
<QUOTE><s>

</s>
 
I (796) main: N° : 0 .tx_buffer : 170 
 
I (796) check_trans_valid: check_trans_valid 
I (806) check_trans_valid: check_trans_valid 2 
Guru Meditation Error: Core 0 panic'ed (LoadProhibited). Exception was unhandled. 
 
Core 0 register dump: 
PC : 0x400833c8 PS : 0x00060030 A0 : 0x80083cc7 A1 : 0x3ffc0d40 
0x400833c8: check_trans_valid at C:/Espressif/frameworks/esp-idf-v5.1.1/components/driver/spi/gpspi/spi_master.c:768 (discriminator 13) 
 
A2 : 0x00000001 A3 : 0x3ffc0df8 A4 : 0x3f406550 A5 : 0x0000000c 
A6 : 0x3ffafba0 A7 : 0x3ffafce0 A8 : 0x800833c8 A9 : 0x3ffc0cf0 
A10 : 0x00000003 A11 : 0x3f406550 A12 : 0x3f405528 A13 : 0x00000326 
A14 : 0x3f406550 A15 : 0x00000004 SAR : 0x00000004 EXCCAUSE: 0x0000001c 
EXCVADDR: 0x00000061 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xfffffffb 
0x400014fd: strlen in ROM 
 
0x4000150d: strlen in ROM 
 
 
 
Backtrace: 0x400833c5:0x3ffc0d40 0x40083cc4:0x3ffc0d80 0x40083e30:0x3ffc0da0 0x400d687c:0x3ffc0dc0 0x400e9edd:0x3ffc0e80 0x40089b55:0x3ffc0ea0 
0x400833c5: check_trans_valid at C:/Espressif/frameworks/esp-idf-v5.1.1/components/driver/spi/gpspi/spi_master.c:766 (discriminator 13) 
 
0x40083cc4: spi_device_polling_start at C:/Espressif/frameworks/esp-idf-v5.1.1/components/driver/spi/gpspi/spi_master.c:1068 (discriminator 2) 
 
0x40083e30: spi_device_polling_transmit at C:/Espressif/frameworks/esp-idf-v5.1.1/components/driver/spi/gpspi/spi_master.c:1140 
 
0x400d687c: app_main at C:/Users/lionel.sabatier/Documents/Perso/Spectrum_Audio_FFT_ESP32/Spectrum_Audio_FFT_ESP32/main/Spectrum_Audio_FFT_ESP32_main.c:633 (discriminator 13) 
 
0x400e9edd: main_task at C:/Espressif/frameworks/esp-idf-v5.1.1/components/freertos/app_startup.c:208 
 
0x40089b55: vPortTaskWrapper at C:/Espressif/frameworks/esp-idf-v5.1.1/components/freertos/FreeRTOS-Kernel/portable/xtensa/port.c:162 
 
 
 
 
 
ELF file SHA256: 23081d138c2c6b39 
 
Rebooting in 5 seconds...
<e>

</e></QUOTE>

To find the root cause of this crash, I place several traces in the code. The issue is in the file <QUOTE><s>

</s>spi_master.c<e>

</e></QUOTE> at the line spi_host_t *host = handle->host; 

<CODE><s>

Code: Select all

</s><i>
</i>static SPI_MASTER_ISR_ATTR esp_err_t check_trans_valid(spi_device_handle_t handle, spi_transaction_t *trans_desc)
{
    static const char TAG[] = "check_trans_valid";
    ESP_LOGI(TAG, "check_trans_valid ");
    SPI_CHECK(handle!=NULL, "invalid dev handle", ESP_ERR_INVALID_ARG);
    ESP_LOGI(TAG, "check_trans_valid 2");

[b][u][i]    spi_host_t *host = handle->host;[/i][/u][/b]
    ESP_LOGI(TAG, "check_trans_valid 2q");
    const spi_bus_attr_t* bus_attr = host->bus_attr;
    ESP_LOGI(TAG, "check_trans_valid 2a");
    bool tx_enabled = (trans_desc->flags & SPI_TRANS_USE_TXDATA) || (trans_desc->tx_buffer);
    ESP_LOGI(TAG, "check_trans_valid 2z");
    bool rx_enabled = (trans_desc->flags & SPI_TRANS_USE_RXDATA) || (trans_desc->rx_buffer);
    ESP_LOGI(TAG, "check_trans_valid 2e");
    spi_transaction_ext_t *t_ext = (spi_transaction_ext_t *)trans_desc;
<e>

</e></CODE></r>

The code is written under Vscode with :
* Espressif IDF v1.6.5
* boot: ESP-IDF v5.1.1-dirty 2nd stage bootloader

I Would like to know how to solve the issue.
Is Someone can help me in this task ?

Regards
Lionelsab38

PS : Starting traces of the board :
<QUOTE><s>

</s>
 
ets Jun 8 2016 00:22:57

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:7084
ho 0 tail 12 room 4
load:0x40078000,len:15584
load:0x40080400,len:4
0x40080400: _init at ??:?

load:0x40080404,len:3876
entry 0x4008064c
I (31) boot: ESP-IDF v5.1.1-dirty 2nd stage bootloader
I (31) boot: compile time Nov 10 2023 11:32:32
I (31) boot: Multicore bootloader
I (36) boot: chip revision: v1.0
I (40) boot.esp32: SPI Speed : 40MHz
I (44) boot.esp32: SPI Mode : DIO
I (49) boot.esp32: SPI Flash Size : 4MB
I (53) boot: Enabling RNG early entropy source...
I (59) boot: Partition Table:
I (62) boot: ## Label Usage Type ST Offset Length
I (70) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (77) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (84) boot: 2 factory factory app 00 00 00010000 00100000
I (92) boot: End of partition table
I (96) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=0c978h ( 51576) map
I (115) esp_image: segment 1: paddr=0001c9a0 vaddr=3ffb0000 size=022b4h ( 8884) load
I (118) esp_image: segment 2: paddr=0001ec5c vaddr=40080000 size=013bch ( 5052) load
I (123) esp_image: segment 3: paddr=00020020 vaddr=400d0020 size=1a66ch (108140) map
I (152) esp_image: segment 4: paddr=0003a694 vaddr=400813bc size=0d658h ( 54872) load
I (174) boot: Loaded app from partition at offset 0x10000
I (174) boot: Disabling RNG early entropy source...
I (186) cpu_start: Multicore app
I (186) cpu_start: Pro cpu up.
I (186) cpu_start: Starting app cpu, entry point is 0x40081314
0x40081314: call_start_cpu1 at C:/Espressif/frameworks/esp-idf-v5.1.1/components/esp_system/port/cpu_start.c:154
<e>

</e></QUOTE>

PS2 : my code in attachment

ESP32 Forum

ESP32-WROOM-32 SPI crashed

ESP32-WROOM-32 SPI crashed