[Ovmsdev] OVMS v3.3 hardware

Michael Balzer dexter at expeedo.de
Wed Feb 23 04:47:00 HKT 2022


I've encountered an issue with the final batch module that didn't occur 
with the hand soldered test version: I wasn't able to boot from USB 
power. All my other modules work perfectly from my powered USB hub, this 
doesn't.

It only has issues with a cold start: if I use a 12V supply when 
switching it on, I can remove the 12V supply after boot and also do 
reboots while only supplying USB power. The next cold boot from USB will 
fail again.

The module keeps rebooting with a "brownout detector was triggered" 
message right after adding the SPIRAM pool:

ets Jul 29 2019 12:21:46

rst:0xc (SW_CPU_RESET),boot:0x1b (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:5328
ho 0 tail 12 room 4
load:0x40078000,len:11332
load:0x40080400,len:6204
entry 0x400806cc
I (1053) psram: This chip is ESP32-D0WD
I (1054) spiram: Found 64MBit SPI RAM device
I (1054) spiram: SPI RAM mode: flash 40m sram 40m
I (1057) spiram: PSRAM initialized, cache is in low/high (2-core) mode.
I (1064) cpu_start: Pro cpu up.
I (1068) cpu_start: Application information:
I (1073) cpu_start: Project name:     ovms3
I (1078) cpu_start: App version:      3.3.001-285-g601f2a70
I (1084) cpu_start: Compile time:     Feb 19 2022 07:59:04
I (1090) cpu_start: ELF file SHA256:  09c85890b31e6080...
I (1096) cpu_start: ESP-IDF:          v3.3.4-848-g1ff5e24b1b
I (1103) cpu_start: Starting app cpu, entry point is 0x400818d4
I (1094) cpu_start: App cpu up.
I (1981) spiram: SPI SRAM memory test OK
I (1981) heap_init: Initializing. RAM available for dynamic allocation:
I (1981) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (1987) heap_init: At 3FFBF770 len 00020890 (130 KiB): DRAM
I (1994) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (2000) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (2007) heap_init: At 4009CCFC len 00003304 (12 KiB): IRAM
I (2013) cpu_start: Pro cpu start user code
I (2018) spiram: Adding pool of 4096K of external SPI memory to heap 
allocator

*Brownout detector was triggered*

ets Jul 29 2019 12:21:46

rst:0xc (SW_CPU_RESET),boot:0x1b (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:5328
ho 0 tail 12 room 4
load:0x40078000,len:11332
load:0x40080400,len:6204
entry 0x400806cc
I (1053) psram: This chip is ESP32-D0WD
…


Does the new mainboard draw a higher current? Or is the modem possibly 
configured differently from the test module causing an early high 
current consumption?

Regards,
Michael


Am 22.02.22 um 19:35 schrieb Craig Leres:
> I'd like to congratulate Mark and crew on the v3.3 hardware; I've been 
> running with one new v3.3 ovms module and two new sim7600G modems for 
> a few weeks without issue. While I still see the new modems connecting 
> to 3G at times, it's really nice to have 4G capability well in advice 
> of the retirement of 3G. (The updated v3 esp32 is also nice...)
>
> Given that my frankenstein modules still go into "user interrupt" 
> after so many hours of uptime, I think the best explanation is that it 
> is due to differences in their sim7600A-H firmware. I'd offer to ship 
> Mark one of mine for debugging if that would be at all useful given he 
> is not located in north america. (And if there is someone in the US 
> that would like to take a run at solving sim7600A issues, contact me 
> offline.)
>
>         Craig
> _______________________________________________
> OvmsDev mailing list
> OvmsDev at lists.openvehicles.com
> http://lists.openvehicles.com/mailman/listinfo/ovmsdev

-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26

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