LukPe
Mon Apr 10, 2017 7:49 pm
Hi,
I managed to flash maple_rev5_boot20.bin bootloader on my Iteadmaple, and can upload a Blink script over Serial in Arduino IDE, but when I connect it by USB cable nothing happens. The power is on, but the device doesn’t show up in device manager (Windows 10). On the original Maple Leaf bootloader the device is shown as Maple DFU.
Any ideas, why this happens?
stevestrong
Mon Apr 10, 2017 9:50 pm
If you upload over serial, any previous code will be erased.
So first upload the bootloader over serial, then only upload over usb dfu.
So first upload the bootloader over serial, then only upload over usb dfu.
LukPe
Tue Apr 11, 2017 6:28 am
The USB connection doesn’t work after uploading the bootloader. The LED blinks like in DFU mode, but still nothing shows up in the device manager. There is no port to choose from in Arduino IDE either.
edogaldo
Tue Apr 11, 2017 7:23 am
LukPe wrote:The USB connection doesn’t work after uploading the bootloader. The LED blinks like in DFU mode, but still nothing shows up in the device manager. There is no port to choose from in Arduino IDE either.
stevestrong
Tue Apr 11, 2017 9:00 am
LukPe wrote:The USB connection doesn’t work after uploading the bootloader. The LED blinks like in DFU mode, but still nothing shows up in the device manager. There is no port to choose from in Arduino IDE either.
LukPe
Tue Apr 11, 2017 9:10 am
edogaldo wrote:LukPe wrote:The USB connection doesn’t work after uploading the bootloader. The LED blinks like in DFU mode, but still nothing shows up in the device manager. There is no port to choose from in Arduino IDE either.
stevestrong
Tue Apr 11, 2017 9:47 am
LukPe wrote:But there is no port to choose from in Arduino IDE, and you have to choose something to upload a sketch. And, as I mentioned, the USB DFU doesn’t work either.
LukPe
Tue Apr 11, 2017 10:05 am
stevestrong wrote:
No, it is not necessary to choose a COM port.
Have you selected the upload method to “STM32duino bootloader”?
Please post here the content of the Arduino message window when you try to upload.
And the device must show up in the device manager, maybe as an “unidentified USB device”? In this case it may be an USB driver problem.
No, it is not necessary to choose a COM port.
Have you selected the upload method to “STM32duino bootloader”?
Please post here the content of the Arduino message window when you try to upload.
And the device must show up in the device manager, maybe as an “unidentified USB device”? In this case it may be an USB driver problem.
LukPe
Wed Apr 12, 2017 7:03 am
edogaldo wrote:Maybe this post can help: viewtopic.php?f=38&t=650&start=10#p25970
stevestrong
Wed Apr 12, 2017 7:13 am
LukPe wrote:Assuming the board is in perpetual bootloader mode and continuing to attempt dfu programming…
edogaldo
Wed Apr 12, 2017 8:27 am
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?
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?
edogaldo
Wed Apr 12, 2017 9:21 am
LukPe wrote:edogaldo wrote:Maybe this post can help: viewtopic.php?f=38&t=650&start=10#p25970
LukPe
Wed Apr 12, 2017 11:18 am
edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/
LukPe
Wed Apr 12, 2017 3:40 pm
edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/
edogaldo
Wed Apr 12, 2017 3:54 pm
LukPe wrote:edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/
edogaldo
Wed Apr 12, 2017 4:14 pm
LukPe wrote:edogaldo wrote:did you also read this? https://www.itead.cc/review/product/view/id/12/
