<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=""><div class="">I don’t think Espressif will help once the module has been put in a device/board. They’ve probably just direct you back to the supplier.</div><div class=""><br class=""></div><div class="">Anyway, let’s just confirm we don’t have another issue causing this (either corrupt firmware, or power issues):</div><div class=""><br class=""></div><div class="">Please power the device either from a powered USB hub, or from 12V. Best to also disconnect the modem board if you can. Then:</div><div class=""><br class=""></div>Please try to erase the chip, then re-flash from the standard firmware here:<div class=""><br class=""></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class="">$ make erase_flash</div><div class=""><br class=""></div><div class=""><a href="http://api.openvehicles.com/firmware/ota/v3.1/main/20180321.bootloader.bin" class="">http://api.openvehicles.com/firmware/ota/v3.1/main/20180321.bootloader.bin</a></div><div class=""><a href="http://api.openvehicles.com/firmware/ota/v3.1/main/20180321.partitions.bin" class="">http://api.openvehicles.com/firmware/ota/v3.1/main/20180321.partitions.bin</a></div><div class=""><a href="http://api.openvehicles.com/firmware/ota/v3.1/main/3.1.008.ovms3.bin" class="">http://api.openvehicles.com/firmware/ota/v3.1/main/3.1.008.ovms3.bin</a></div><div class=""><br class=""></div><div class="">… --flash_mode dio --flash_freq 40m --flash_size detect 0x1000 <BOOTLOADER> 0x10000 <BIN> 0x8000 <PARTITIONS></div></blockquote><div class=""><div><br class=""></div><div>Reboot without a SD card in the slot and show me the output.</div><div><br class=""></div><div>Also, please give the output of:</div><div><br class=""></div></div><blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class=""><div>$ ~/esp/esp-idf/components/esptool_py/esptool/espefuse.py … summary</div></div><div>$ ~/esp/esp-idf/components/esptool_py/esptool/espefuse.py … dump</div></blockquote><div class=""><div><br class=""></div><div>Regards, Mark.</div><div><br class=""><blockquote type="cite" class=""><div class="">On 8 Aug 2018, at 2:05 PM, Henrik Scheel <<a href="mailto:henrik.scheel@spjeldager.dk" class="">henrik.scheel@spjeldager.dk</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="">My OVMS v3.1 module is failing to boot due to e-fuse CRC error.</div><div class=""><br class=""></div>I am trying to open a support ticket at <a href="https://www.espressif.com/en/company/contact-extra/technical-inquiries-hardware" class="">https://www.espressif.com/en/company/contact-extra/technical-inquiries-hardware</a>.<div class=""><br class=""></div><div class="">First I had to confirm that I had done 76 advanced checks, ensuring that the hardware design is correct.</div><div class=""><br class=""></div><div class="">Then I have to fill in a form, requesting information like:</div><div class="">Name</div><div class="">Work email</div><div class="">Job Position</div><div class="">Country</div><div class="">Company</div><div class="">Website</div><div class="">Project Name</div><div class="">Customer Product Part Number</div><div class="">Design Version</div><div class="">Espressif Product</div><div class="">SDK Version<br class=""><div class="">And PCB layout</div><div class=""><br class=""></div><div class="">So I guess I am using the wrong form.</div><div class=""><br class=""></div><div class="">How do I contact Espressif regarding the e-fuse problem?</div><div class=""><br class=""></div><div class="">Best regards,</div><div class="">Henrik<br class=""><div class="">
<div style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">-- <br class=""><br class="">Venlig hilsen / best regards <br class="">Henrik R. Scheel<br class=""><br class="">Spjeldager Consult ApS<br class="">Spjeldager 9 <br class="">DK-2630 Taastrup <br class="">CVR: 34491399 <br class="">T: +45 2720 9828 <br class=""><a href="http://www.spjeldager.dk/" class="">http://www.spjeldager.dk/</a><br class=""></div>
</div>
<div class=""><br class=""></div></div></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>