ESP32 & Espruino & dual core mode

[espruino-discuss3]

Posted at 2018-05-29 by user90324

Hello to every one,
I have special request.
I want to run Espruino firmware on ESP32 with dual core support. I would like to join critical time task in C to second core but first core to run Espruino JS interpreter.

My steps to build original Espruino FW:

1. I cloned https://github.com/espruino/EspruinoBuildTools/
   and checkout to branch ESP32-v3.0.
2. builded with
   source EspruinoBuildTools/esp32/build./build-idf.sh
3. uploaded new bootloader + espruino_XvXX_esp32.bin + partitions_espruino.bin to ESP32 mcu

and everythink is working properly.

I did full erase flash by
make erase_flash

But If I change in menuconfig > Component config > FreeRTOS > [ ] Run FreeRTOS only on first core
and build again ESP32 still resetting with this log output (VERBOSE mode output):

Rebooting...
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:0x3fff0018,len:4
load:0x3fff001c,len:2760
load:0x40078000,len:0
ho 12 tail 0 room 4
load:0x40078000,len:10880
entry 0x40078c4c
I (263) cpu_start: Pro cpu up.
I (263) cpu_start: Starting app cpu, entry point is 0x4008101c
0x4008101c: call_start_cpu0 at /home/martin/EspruinoBuildTools/esp32/build/esp-idf/components/esp32/./cpu_start.c:157 (discriminator 1)

I (238) cpu_start: App cpu up.
I (266) heap_init: Initializing. RAM available for dynamic allocation:
D (273) heap_init: New heap initialised at 0x3ffaff10
I (278) heap_init: At 3FFAFF10 len 000000F0 (0 KiB): DRAM
D (284) heap_init: New heap initialised at 0x3ffdc178
I (289) heap_init: At 3FFDC178 len 00003E88 (15 KiB): DRAM
I (296) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
I (302) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
D (308) heap_init: New heap initialised at 0x40097e04
I (313) heap_init: At 40097E04 len 000081FC (32 KiB): IRAM
I (320) cpu_start: Pro cpu start user code
D (332) clk: RTC_SLOW_CLK calibration value: 3518234
V (43) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): checking args
V (43) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): Args okay. Resulting flags 0xE
D (48) intr_alloc: Connected src 46 to int 2 (cpu 0)
V (53) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): checking args
V (59) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): Args okay. Resulting flags 0xC0E
D (67) intr_alloc: Connected src 57 to int 3 (cpu 0)
V (72) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): checking args
V (78) intr_alloc: esp_intr_alloc_intrstatus (cpu 0): Args okay. Resulting flags 0x40E
D (86) intr_alloc: Connected src 24 to int 9 (cpu 0)
I (92) cpu_start: Starting scheduler on PRO CPU.
abort() was called at PC 0x40080fe1 on core 0
0x40080fe1: call_start_cpu0 at /home/martin/EspruinoBuildTools/esp32/build/esp-idf/components/esp32/./cpu_start.c:133


Backtrace: 0x4008bc8f:0x3ffe3be0 0x4008bcbb:0x3ffe3c00 0x40080fe1:0x3ffe3c20 0x400811e7:0x3ffe3c50 0x40078bfb:0x3ffe3c70 0x40078d0e:0x3ffe3e70 0x40007c31:0x3ffe3eb0 0x4000073d:0x3ffe3f20
0x4008bc8f: phy_get_most_tpw at ??:?

0x4008bcbb: ram_index_to_txbbgain at ??:?

0x40080fe1: call_start_cpu0 at /home/martin/EspruinoBuildTools/esp32/build/esp-idf/components/esp32/./cpu_start.c:133

0x400811e7: timer_insert at /home/martin/EspruinoBuildTools/esp32/build/esp-idf/components/esp32/./esp_timer.c:184

This is my output from make monitor from ~/EspruinoBuildTools/esp32/build/app. So you can see backtrack with function name instead of pointer address.

Does anybody know where should be problem?
Thanks a lot

[espruino-discuss3]

Posted at 2018-05-30 by Wilberforce

I think there are tasks pinned to core in main.c that you might need to change.

What is that you want to run in c on the other core? There might be another way of doing this.

---

Posted at 2018-05-30 by user90324

Hi, I put only one new line to main function to create new task but it doesn't working. I tried same code in other IDF project and its working in both variant. With selected dual core in menuconfig and also working with one core mode in menuconfig.

ifdef RTOS
  queues_init();
  tasks_init();
  task_init(espruinoTask,"EspruinoTask",25000,5,0);
  task_init(uartTask,"ConsoleTask",2200,20,0);
else
// START NEW LINE ========================
  xTaskCreatePinnedToCore(&hello_task_core_1, "core1_task", 10000, NULL, 5, NULL, 1);
// END NEW LINE ========================
  xTaskCreatePinnedToCore(&espruinoTask, "espruinoTask", 25000, NULL, 5, NULL, 0);
  xTaskCreatePinnedToCore(&uartTask,"uartTask",2200,NULL,20,NULL,0);
endif

I want to drive 20x16 RGB LED display. The driving circuit its very similar like
Basically I need to transfer 8bytes each 31uS. ( 100Hz frame rate, 16 levels color deep and 20 channel = columns) summary I want transfer 8 byte 32000 times per second. And I think this is task for alone core. It working very good in separate IDF project with mJS library. Now I want achieve similar results with Espruino library. On core 0 I will prepare only 20x16x1B frame buffer to sharing with core 1.