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1. 

   josheeg
   Member

   programmer has anyone tried the serial port programmer from sparkfun for programing a maple with a new bootloader?

   http://www.sparkfun.com/products/714

   then can a usb converter be used?

   because that would be a very cost effective way to program a maple.

   ~75 for the debugger from sparkfun.

   Posted 4 years ago #
2. 

   x893
   Member

   i use 2 month yet serial protocol for stm32 (maple) for programming and share usb with all use code (not a separate in user code space) - it's not a problem - you can use it also

   Posted 4 years ago #
3. 

   josheeg
   Member

   So your saying you used the serial programmer?
   The boot loader allows the signal to be sent serialy on the maples usb port.
   I am confused what you mean?

   Posted 4 years ago #
4. 

   gbulmer
   Moderator

   I used an FTDI USB to 3.3V serial cable:
   http://www.sparkfun.com/products/9717
   to program my DIY STM32F board. That is a USB converter.

   It works fine. Plug it into the Maples USART1 pins, and the other end into a PC USB socket.

   Then use one of the upload programs, like the Python one (mentioned somewhere here, but also at http://www.micromouseonline.com/category/processors/stm32 somewhere).

   The boot loader allows the signal to be sent serialy on the maples usb port.

   What?
   There are two bootloaders in a Maple.
   One is manufactured into the chip by ST Micro, and loads over USART1.
   The other is loaded into the chip by LeafLabs, and loads over the on-board USB.

   Posted 4 years ago #
5. 

   josheeg
   Member

   This would realy be helpful in the documentation.
   or at least in the wiki.

   Posted 4 years ago #
6. 

   x893
   Member

   I change Maple bootloader and use serial communication (not a DFU) with custom protocol. You can see maple-bootloader branch but i use my own implementation. For download also custom host software. So i not need install DFU driver (and libusb).

   Posted 4 years ago #
7. 

   anton
   Member

   I used this cable as 3V FTDI
   http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9043
   It is also possible use Arduino board

   Posted 4 years ago #
8. 

   mbolivar
   LeafLabs

   josheeg,

   This would realy be helpful in the documentation.
   or at least in the wiki.

   it is in the documentation.

   http://leaflabs.com/docs/bootloader.html#flashing-a-custom-bootloader

   Posted 4 years ago #
9. 

   josheeg
   Member

   thanks

   Posted 4 years ago #

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