I have today 9-Oct-16 downloaded and flashed maple_mini_boot20.bin into 0x08002000 using ST LINK V2
edogaldo wrote:Apart from the COM port, does your sketch work?
You said you changed the bootloader to the new version, was this the first time you upgraded the bootloader?
If yes then it's most likely that previously you had the original Maple bootloader which loads sketches at address 0x08005000 and not 0x08002000.
In this case you should upload the sketch again using the new bootloader so that the sketch can be relocated in the new address.
If you have problems uploading the sketch consider putting the bootloader in perpetual mode: http://docs.leaflabs.com/static.leaflab ... bootloader
 just noted:I have today 9-Oct-16 downloaded and flashed maple_mini_boot20.bin into 0x08002000 using ST LINK V2
the bootloader must be written in 0x08000000 , not 0x08002000, the latter is the address where the bootloader puts the sketch..
I am doing some low level port programming
So I suspect, they have basically broken the USB by doing something to resources required by the USB e.g. interrupts or perhaps timers or even GPIO settings (goodness knows)
Users browsing this forum: No registered users and 1 guest