<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Discussing with the manufacturer, feedback is:<div class=""><br class=""></div><div class=""><ul class="MailOutline"><li class="">Given component vs board manufacturing cost, it seems simplest to combine this with the existing k-line option board, to produce a new ‘combo’ option board containing both K-line and SWCAN (DIP switch selectable one or the other, not both).<br class=""><br class=""></li><li class="">The TH8056 component is causing issues. Availability is poor (in China) and price is very high.</li></ul></div><div class=""><br class=""></div><div class="">Does anyone know of any alternative to the TH8056 that can be suggested? Any other comments on this?</div><div class=""><br class=""></div><div class="">Regards, Mark.<br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On 18 May 2022, at 8:55 AM, Mark Webb-Johnson <<a href="mailto:mark@webb-johnson.net" class="">mark@webb-johnson.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">Regarding: <a href="https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/704" class="">https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/issues/704</a></div><div class=""><br class=""></div><div class="">Marko did some work on the back in 2019, and helpfully published under MIT license here:</div><div class=""><br class=""></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><a href="https://github.com/mjuhanne/OVMS-SWCAN" class="">https://github.com/mjuhanne/OVMS-SWCAN</a></div></blockquote><div class=""><br class=""></div><div class="">Very grateful for that.</div><div class=""><br class=""></div><div class="">Now, the Bolt EV people are asking for this.</div><div class=""><br class=""></div><div class="">In general, it seems that we can do a simple board in the same way as the K-Line was done. Use the two available GPIOs (one for INT and the other CS). Then the GPIOs on the MCP2515 to control the transceiver mode. Expose the single SWCAN pin on the DB9, in the same way as K-Line does it. GND (for SWCAN-low) is already available there.</div><div class=""><br class=""></div><div class="">Anybody see any problems with that approach?</div><div class=""><br class=""></div><div class="">I am happy to arrange the hardware, given sufficient interest, but have almost no way of testing (as none of the cars I have access to have SWCAN).</div><div class=""><br class=""></div><div class="">Regards, Mark.</div><div class=""><br class=""></div></div>_______________________________________________<br class="">OvmsDev mailing list<br class=""><a href="mailto:OvmsDev@lists.openvehicles.com" class="">OvmsDev@lists.openvehicles.com</a><br class="">http://lists.openvehicles.com/mailman/listinfo/ovmsdev<br class=""></div></blockquote></div><br class=""></div></body></html>