December 2022 - OvmsDev - Open Vehicles

Warning in Duktape
by Michael Geddes 09 Aug '24

09 Aug '24

There's an unused variable 'dcc' warning in the below code. It seems that the 'Perform the callback' is not being 'performed! Is this deliberate? //.ichael void DukOvmsCommandRegisterRun(int verbosity, OvmsWriter* writer, OvmsCommand* cmd, int argc, const char* const* argv) { ESP_LOGD(TAG, "DukOvmsCommandRegisterRun(%s)",cmd->GetName()); auto it = MyDuktape.m_cmdmap.find(cmd); if (it == MyDuktape.m_cmdmap.end()) { ESP_LOGE(TAG, "Command '%s' cannot be found in registry",cmd->GetName ()); return; } else { DuktapeConsoleCommand* dcc = it->second; // Perform the callback } }

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Netmanager priority issue solved
by Michael Balzer 05 Jul '23

05 Jul '23

TL;DR: you need to pull my latest esp-idf changes. I've finally found & solved the strange priority changes for our netmanager task (i.e. being raised suddenly from origin 5 to 18/22): the bug was in the esp-idf posix threads mutex implementation. I had suspected the mutex priority inheritance for a while, so added a way to retrieve the internal mutex hold count for our task list. Using this I noticed the hold count would always & only raise by 2 whenever any kind of mongoose connection was closed. That lead me to checking the thread concurrency protection for mongoose mbufs, because every mongoose connection has two mbufs associated (rx & tx), each having a posix mutex. The bug was: posix mutexes were deleted after locking (taking) them. FreeRTOS mutexes must not be deleted while being taken, that breaks the priority inheritance (more precisely the disinheritance), with the visible effect being the mutex hold count not returning to zero. As a side effect, this may also solve the strange event task starvations (hope so…). I was investigating this as I suspected some busy loop in the netmanager context. With the netman running at prio 22, that would effectively block almost all other processing including the timer service. I've found & fixed one potential busy loop trigger in the netman that would have been caused by the netman task still running while all interfaces had been lost -- not sure if that could happen, but it would explain the effects. So please watch your crash debug info & report if the issue still turns up. Regards, Michael -- Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal Fon 02333 / 833 5735 * Handy 0176 / 206 989 26

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Subaru Solterra
by Solterra 11 Jun '23

11 Jun '23

Any interest in adding support for Subaru Solterra?

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SIM7600 Registration Denied
by Mark Webb-Johnson 18 Jan '23

18 Jan '23

I’ve been fighting a problem for the past few months with registration getting denied on T-Mobile in USA using Hologram and our new 4G SIM7600G modem. Without cellular connectivity at home, it hasn’t been easy to recreate this, but I found a solution: Finally, with a good high gain antenna on my external wall facing the nearest cellular tower a couple of km away, I can get cellular (and even GPS with the little black puck) connectivity. So back to the two issues we are having: The FPLMN blacklist in the modem lists a bunch of cellular networks we are blocked from connecting to (including the ones we need). There have been reports that the connection to hologram works and is maintained, but the OVMS never connects to the v2 server. To address #1, I have extended the “cellular cmd” command to try to capture the output from the modem. There is no simple way of knowing when the command has completed, so for the moment I just look at data returned from the modem on the command channel, and stop when it hasn’t changed for a second or so. That now works like this: OVMS# cellular cmd AT+CRSM=176,28539,0,0,12 +CRSM: 144,0,"FFFFFFFFFFFFFFFFFFFFFFFF" OK OVMS# cellular cmd ATI Manufacturer: SIMCOM INCORPORATED Model: SIMCOM_SIM7600G Revision: SIM7600M21-A_V2.0.1 SVN: 01 IMEI: (redacted) +GCAP: +CGSM OK If required, we can send a relatively simple command to clear the FPLMN blacklist. It seems to work well, but I still need to test it wider (especially over v2 protocol commands, where I think we might have a recursion problem). So on to issue #2 that has been much harder to find. Finally, working with Hologram, I discovered that the problem seems to be in our handling of CREG network registration messages. I found a module with this problem, and manually issuing commands I found: AT+CREG? Registration Denied AT+CGREG? Registration Denied AT+CEREG? Registered Roaming It seems that the E-UTRANS (some 4G LTE carriers) won’t show the registration status correctly in AT+CREG. I guess they are refusing GSM (3G) connections from us (aka ‘Registration Denied’) while allowing 4G LTE. But as we only use the AT+CREG status to know whether we are connected to the network, the result is we can’t detect the E-UTRANS LTE connection and think registration has been denied. Connected to Hologram, but no data (or v2 server) connection. I did some research, and can’t find a definitive answer to how best to do this (especially as we have both 3G and 4G options, still support 2G, and a lot seems to depend on the individual cellular carrier options). So I implemented it as best I could. I re-ordered the registration statuses to be in lowest priority order, then created m_netreg_d[3] to store the registration status for each of the three types. Finally, I changed it so that m_netreg reflects the highest registration status. That way if CREG says RegistrationDenied, and CEREG says RegisteredRoaming, I treat it as RegisteredRoaming. This seems to work (on my test bench at least), and I now plan to deploy for wider testing. Code is committed and built as 3.3.002-45-g42546636 on the main firmware site. I would gratefully appreciate feedback on this. Regards, Mark.

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Is Car (CAN / OBD) Data Visible Without A Server Connection?
by Douglas Urner 01 Jan '23

01 Jan '23

I’ve started experimenting with our Kia Niro EV (2022). I'm connecing to the OVMS module via wifi and a web browser, and don’t have a server connection yet. The only data that I’m seeing from the module appears to be module state (12V battery voltage, wifi state, modem state, etc.). I’m not seeing any of the “car” data like battery voltage or SOC. Should I be seeing any of the car state at this point? Thanks, Doug — Douglas Urner (he/they) | dlu(a)canishe.com | +1 360.769.5565

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Remaining Charge calculator
by Michael Geddes 01 Jan '23

01 Jan '23

Hi, There's a remaining charge calculator currently in the hyundai base class which I have improved upon. This configuration allows for the charge voltage to be part of the equation. This is the example from data I collected with the ioniq 5 on 800v charging .. and I've written a plugin so I can get more charge profile information at other charge voltages. I'm happy to leave it in the Ioniq 5 code, but was wondering if I should put the implementation in a common area.. vehicle.h maybe? //.ichael ---8<---------------------- // Charging profile // - Must be from lowest to highest to%. // - Higher voltages must come before lower voltages for the same to% charging_step_t ioniq5_chargesteps[] = { // voltage, to%, WattHours { 750, 10, 100000 }, { 750, 25, 190000 }, { 750, 45, 220000 }, { 750, 75, 120000 }, { 750, 80, 80000 }, { 400, 85, 60000 }, { 400, 90, 40000 }, { 100, 90, 1100 }, { 400, 95, 25000 }, { 100, 95, 7400 }, { 100, 100, 7200 }, { 0, 0, 0 }, }; int CalcRemainingChargeMins(int chargeVolt, float chargespeed, int fromSoc, int toSoc, int batterySize, charging_step_t charge_steps[]) {

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Server Authentication Confusion
by Douglas Urner 30 Dec '22

30 Dec '22

We’re trying to set up an OVMS server and I’m puzzled by the authentication process. After (making an attempt at) following the server setup instructions (https://docs.openvehicles.com/en/stable/server/index.html <https://docs.openvehicles.com/en/stable/server/index.html>) we’re seeing these message after starting the server: 2022-12-30 00:18:03.533595 +0000 info OVMS::Server::AuthDrupal: - - - Periodic Drupal maintenance DBD::mysql::db do failed: Table 'openvehicles.users' doesn't exist at plugins/system/OVMS/Server/DbDBI.pm line 181. After a bit more poking, it appears that the only functional authentication module wants to talk to a Drupal site (presumably to populate the users table). Do we need to set up a Drupal instance, or is it possible manually populate the openvehicles.users table? Thanks, Doug — Douglas Urner (he/they) | dlu(a)canishe.com | +1 360.769.5565

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OpenChargeMap read failed
by Greg D. 30 Dec '22

30 Dec '22

Just noticed this; not sure when it started. I open the OVMS app on my Android phone, and see a diagnostic pop-up that goes away in a few seconds, so hard to read the whole thing, but it repeatedly shows every so often. It starts OpenChargeMap read failed: https://api.openchargemap.io/v2/poi/?output=json&verbose=false&latitude=... with my lat / lon and more stuff after that. Something need a thwacking? The car is a 2010 Tesla Roadster 2.0. The OVMS is connected via WiFi to the home network, and the displayed data seems to be valid. Greg

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Slider widget not disabled when first loading unchecked?
by Michael Geddes 27 Dec '22

27 Dec '22

Hi all, I've noticed that if you create a 'slider' widget with a checkbox that if it's unchecked when it first loads, then the slider is enabled. If you check/uncheck then the slider is disabled. Or at least that's what I seen in google chrome. I'm really not familiar with NodeJS, but this _seems_ to fix the problem: Does this fix make sense? If so - I'll do a p/r for it. //.ichael * Slider widget plugin */ $.fn.slider = function(options) { return this.each(function() { - var $sld = $(this).closest('.slider'), data = $.extend({ checked: true }, $sld.data()); + var $sld = $(this).closest('.slider'), $cbi = $sld.find('.slider-enable'), data = $.extend({ checked: $cbi.prop("checked") }, $sld.data()); var opts = (typeof options == "object") ? options : data; // init? if ($sld.children().length == 0) { var id = $sld.attr('id'); $sld.html('\

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SPIRAM memory test fail
by Patrick Stein 24 Dec '22

24 Dec '22

Dear all, I’m having a weird problem. As I’m not courageous enough to keep the module connected all time, I will connect the module when starting the vehicle. For some reason however the module always had to be reconnected cause otherwise the blue light would stay continous and unresponsive ( no wfi ). Today I went into the underground garage with my laptop and connected the usb cable (not connected via obd) and immediately then connect Terminal.app. And I saw the following: > E (2061) spiram: SPI SRAM memory test fail. 131071/131072 writes failed, first @ 3F800000 > > E (2061) cpu_start: External RAM failed memory test! > abort() was called at PC 0x400818ea on core 0 > > ELF file SHA256: f4a716b153577bae > > Backtrace: 0x4008ddd2:0x3ffe3c10 0x4008e06d:0x3ffe3c30 0x400818ea:0x3ffe3c50 0x400792bc:0x3ffe3c90 0x4007969d:0x3ffe3cc0 0x40080721:0x3ffe3df0 0x40007c15:0x3ffe3eb0 0x4000073d:0x3ffe3f20 > The version is a modified one as I added a battery voltage check to the code that uses a calibrated voltage. I don’t think the error it’s related to the code. After pressing reset the system boots normally. Interesting enough it only happens after a night’s reset without beeing connected to the car. When I try it after it has worked it will always boot up fine. I’ve never encountered that error on my desk. Is the new module maybe broken ? Regards Patrick

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