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maple-bootloader's Introduction

FILES -------------------------------------------------------------------------

stm32lib/*
  - all the (possibly consolidated) stm32 lib and usb example code

usb.c 
  - USB-specific hardware setup. Interrupts, clocks, etc. handling USB when 
    not "Attached". some low-level callbacks (low power mode, init, reset, 
    resume, etc).

usb_callbacks.c 
  - aka endpoints: handling data transfer when "Configured". calls out to 
    application specific callbacks (i.e. DFU).

usb_descriptor.c 
  - aka application descriptor; big static struct and callbacks for sending
    the descriptor. 

main.c
  - main loop and calling any hardware init stuff. timing hacks for EEPROM 
    writes not to block usb interrupts. logic to handle 2 second timeout then
    jump to user code. 

hardware.c
  - init routines to setup clocks, interrupts, also destructor functions.
    does not include USB stuff. EEPROM read/write functions.

dfu.c
  - mostly the giant FSM case switch, also some USB endpoint callbacks

TODO --------------------------------------------------------------------------

 * pack the structs
 * use sizeof() for usb application descriptor once structs are packed

maple-bootloader's People

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maple-bootloader's Issues

Writing a serial bootloader

Hello @mbolivar ,
I'm currently trying to write a serial bootloader and I discovered your serial-boot branch that includes the usb serial
I've changed the LED, BUTTON & DISC pin because I'm trying it on a Maple Mini, but it seems that my computer can't enumerate the USB device, I'm getting like "Device not responding to setup address" in my syslog
Do you have any idea what I'm missing?

Impossible to compile with GCC 4.9

I've been trying for several hours to get the maple bootloader to compile with GCC 4.9 which, for some reason, seems to be impossible. Even with "-O0" the resulting binary doesn't work. I did several tries to find the problem but failed so far.

Different boards can not be built using Makefile targets

It seems very strange that this repo contains a different branch for each target e.g. Maple, Maple mini etc

Wouldn't it be better to have one unified source with #defines in the Makefile for the Port and Pin numbers of DISC pin and the LED etc

So that a bootloader could be built by using Make maple-mini or Maple maple-rev3 etc

Unable to build for Maple mini

Hi
I can't see any config settings etc that would allow the bootloader to be built for the Maple mini.

Looking at the schematics the Maple and Maple mini dont use the same GPIO pin for the DISC or the Button (and probably not the LED either)

I can't see a specific Maplemini-bootloader repo either

Do I have to modify the GPIO pin value to allow it to build for the Maple mini ?

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