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Re: Iteadmaple 1.0 USB

Posted: Wed Apr 12, 2017 8:27 am
by edogaldo
stevestrong wrote:OTOH, checking the schematic, I see PC11 named as "USB-P" connected to a resistor divider. What could be the reason? Is it possible to control the USB with this pin? Control in which way?

It looks like a way to detect whether the usb plug is connected or not..

Re: Iteadmaple 1.0 USB

Posted: Wed Apr 12, 2017 9:21 am
by edogaldo
LukPe wrote:
edogaldo wrote:Maybe this post can help: viewtopic.php?f=38&t=650&start=10#p25970

It didn't help. I managed to compile the bootloader with the changed configure.h, but everything is the same.

did you also read this? https://www.itead.cc/review/product/view/id/12/

Re: Iteadmaple 1.0 USB

Posted: Wed Apr 12, 2017 11:18 am
by LukPe
edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/

Nope, I will try that ;)

Re: Iteadmaple 1.0 USB

Posted: Wed Apr 12, 2017 3:40 pm
by LukPe
edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/


Still nothing :(

Re: Iteadmaple 1.0 USB

Posted: Wed Apr 12, 2017 3:54 pm
by edogaldo
LukPe wrote:
edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/


Still nothing :(

mmm...
go with chinese boards, much less problems.. ;)

Re: Iteadmaple 1.0 USB

Posted: Wed Apr 12, 2017 4:14 pm
by edogaldo
LukPe wrote:
edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/


Still nothing :(

Review the process:
1. confirm the original Maple boot loader works fine
2. recompile the "maple_rev5_boot20.bin" applying PR #20
3. upload the "maple_rev5_boot20.bin" using either a ST-LINK or the standard ST bootloader on USART1 (via USB-to-Serial adapter)
4. enable perpetual boot loader mode (you still don't have a sketch installed at 0x08002000 which provides you the Maple USBSerial)
5. try uploading a sketch via Maple bootloader upload method

IMPORTANT: double/tripe-check each step for errors (even silly things), don't assume anything already checked