BG96 compatibility #3
Description
Hi, I'm trying to run this code on a BG96. After setting everything to it I flash the code and here is the ouput log:
I (12) boot: ESP-IDF v4.2.1 2nd stage bootloader
I (12) boot: compile time 17:29:12
I (12) boot: chip revision: 1
I (14) boot_comm: chip revision: 1, min. bootloader chip revision: 0
I (21) boot.esp32: SPI Speed : 40MHz
I (26) boot.esp32: SPI Mode : DIO
I (30) boot.esp32: SPI Flash Size : 16MB
I (35) boot: Enabling RNG early entropy source...
I (40) boot: Partition Table:
I (44) boot: ## Label Usage Type ST Offset Length
I (51) boot: 0 nvs WiFi data 01 02 00009000 00006000
I (59) boot: 1 phy_init RF data 01 01 0000f000 00001000
I (66) boot: 2 factory factory app 00 00 00010000 00100000
I (74) boot: End of partition table
I (78) boot_comm: chip revision: 1, min. application chip revision: 0
I (85) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x17f3c ( 98108) map
I (131) esp_image: segment 1: paddr=0x00027f64 vaddr=0x3ffb0000 size=0x02160 ( 8544) load
I (135) esp_image: segment 2: paddr=0x0002a0cc vaddr=0x40080000 size=0x00404 ( 1028) load
0x40080000: _WindowOverflow4 at /home/pablo/esp/esp-idf/components/freertos/xtensa/xtensa_vectors.S:1730
I (138) esp_image: segment 3: paddr=0x0002a4d8 vaddr=0x40080404 size=0x05b40 ( 23360) load
I (157) esp_image: segment 4: paddr=0x00030020 vaddr=0x400d0020 size=0x6475c (411484) map
0x400d0020: _stext at ??:?
I (314) esp_image: segment 5: paddr=0x00094784 vaddr=0x40085f44 size=0x05840 ( 22592) load
0x40085f44: prvCheckTasksWaitingTermination at /home/pablo/esp/esp-idf/components/freertos/tasks.c:3632
I (331) boot: Loaded app from partition at offset 0x10000
I (331) boot: Disabling RNG early entropy source...
I (331) cpu_start: Pro cpu up.
I (335) cpu_start: Application information:
I (340) cpu_start: Project name: pppos_client
I (345) cpu_start: App version: 7964ebd-dirty
I (351) cpu_start: Compile time: Jun 2 2021 17:29:04
I (357) cpu_start: ELF file SHA256: 5b88b8300bc17c5c...
I (363) cpu_start: ESP-IDF: v4.2.1
I (368) cpu_start: Starting app cpu, entry point is 0x400818e0
0x400818e0: call_start_cpu1 at /home/pablo/esp/esp-idf/components/esp32/cpu_start.c:287
I (0) cpu_start: App cpu up.
I (378) heap_init: Initializing. RAM available for dynamic allocation:
I (385) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (391) heap_init: At 3FFB3A30 len 0002C5D0 (177 KiB): DRAM
I (397) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (403) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (410) heap_init: At 4008B784 len 0001487C (82 KiB): IRAM
I (416) cpu_start: Pro cpu start user code
I (435) spi_flash: detected chip: gd
I (435) spi_flash: flash io: dio
I (435) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (443) uart: queue free spaces: 30
I (453) pppos_example: Trying to initialize modem on GPIO TX: 23 / RX: 22
E (1953) esp-modem: esp_modem_dte_send_cmd(417): process command timeout
E (1953) dce_service: esp_modem_dce_sync(67): send command failed
E (1953) bg96: bg96_init(539): sync failed
I (2453) pppos_example: Trying to initialize modem on GPIO TX: 23 / RX: 22
I (2503) bg96: CMUX setup
I (2903) bg96: PIN ASK response: +CPIN: READY
I (3003) bg96: PIN ASK response: OK
I (4153) bg96: CMUX command success
I (4153) bg96: enter CMUX mode ok
Guru Meditation Error: Core 0 panic'ed (InstrFetchProhibited). Exception was unhandled.
Core 0 register dump:
PC : 0x00000000 PS : 0x00060c30 A0 : 0x800d6924 A1 : 0x3ffb5750
A2 : 0x00000000 A3 : 0x00000002 A4 : 0x3ffb4470 A5 : 0x00000000
A6 : 0x3f404514 A7 : 0x00000001 A8 : 0x800d60bc A9 : 0x3ffb5730
A10 : 0x3ffb4470 A11 : 0x00000000 A12 : 0x3ffb0114 A13 : 0x00060823
A14 : 0x00000001 A15 : 0x00000001 SAR : 0x00000004 EXCCAUSE: 0x00000014
EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xfffffffe
Backtrace:0xfffffffd:0x3ffb5750 0x400d6921:0x3ffb5780 0x400d5775:0x3ffb57b0 0x400d3e2a:0x3ffb58f0 0x400856cd:0x3ffb5920
0x400d6921: esp_modem_start_cmux at /home/pablo/ESP32_projects/esp_lte_modem/build/../components/modem/src/esp_modem.c:832 (discriminator 2)
0x400d5775: app_main at /home/pablo/ESP32_projects/esp_lte_modem/build/../main/pppos_client_main.c:271
0x400d3e2a: main_task at /home/pablo/esp/esp-idf/components/esp32/cpu_start.c:609 (discriminator 2)
0x400856cd: vPortTaskWrapper at /home/pablo/esp/esp-idf/components/freertos/xtensa/port.c:143
ELF file SHA256: 5b88b8300bc17c5c
Rebooting...
It seems that the start_cmux function isn't working but I don't understand which instruction is prohibited, Any idea of what could be wrong?
Best regards,
P