docs: Use hash marks for header lines

Consistently use leading hash marks (#) to note section headers.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2021-07-27 13:29:36 -04:00
parent afca515e2c
commit 37efd1b8f1
9 changed files with 67 additions and 104 deletions

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@ -25,7 +25,7 @@ application. This document is not an authoritative reference; it is
intended as a collection of useful information that the Klipper
developers have accumulated.
## AVR micro-controllers ##
## AVR micro-controllers
In general, the Arduino project is a good reference for bootloaders
@ -46,7 +46,7 @@ use.
The "avrdude" program is the most common tool used to flash atmega
chips (both bootloader flashing and application flashing).
### Atmega2560 ###
### Atmega2560
This chip is typically found in the "Arduino Mega" and is very common
in 3d printer boards.
@ -65,7 +65,7 @@ To flash an application use something like:
avrdude -cwiring -patmega2560 -P/dev/ttyACM0 -b115200 -D -Uflash:w:out/klipper.elf.hex:i
```
### Atmega1280 ###
### Atmega1280
This chip is typically found in earlier versions of the "Arduino
Mega".
@ -84,7 +84,7 @@ To flash an application use something like:
avrdude -carduino -patmega1280 -P/dev/ttyACM0 -b57600 -D -Uflash:w:out/klipper.elf.hex:i
```
### Atmega1284p ###
### Atmega1284p
This chip is commonly found in "Melzi" style 3d printer boards.
@ -109,7 +109,7 @@ application use something like this instead:
avrdude -carduino -patmega1284p -P/dev/ttyACM0 -b57600 -D -Uflash:w:out/klipper.elf.hex:i
```
### At90usb1286 ###
### At90usb1286
This document does not cover the method to flash a bootloader to the
At90usb1286 nor does it cover general application flashing to this
@ -124,7 +124,7 @@ One can flash an application with it using something like:
teensy_loader_cli --mcu=at90usb1286 out/klipper.elf.hex -v
```
### Atmega168 ###
### Atmega168
The atmega168 has limited flash space. If using a bootloader, it is
recommended to use the Optiboot bootloader. To flash that bootloader
@ -143,8 +143,7 @@ like:
avrdude -carduino -patmega168 -P/dev/ttyACM0 -b115200 -D -Uflash:w:out/klipper.elf.hex:i
```
SAM3 micro-controllers (Arduino Due)
------------------------------------
## SAM3 micro-controllers (Arduino Due)
It is not common to use a bootloader with the SAM3 mcu. The chip
itself has a ROM that allows the flash to be programmed from 3.3V
@ -167,8 +166,7 @@ bossac -U -p /dev/ttyACM0 -a -e -w out/klipper.bin -v -b
bossac -U -p /dev/ttyACM0 -R
```
SAM4 micro-controllers (Duet Wifi)
----------------------------------
## SAM4 micro-controllers (Duet Wifi)
It is not common to use a bootloader with the SAM4 mcu. The chip
itself has a ROM that allows the flash to be programmed from 3.3V
@ -187,8 +185,7 @@ To flash an application use something like:
bossac --port=/dev/ttyACM0 -b -U -e -w -v -R out/klipper.bin
```
SAMD21 micro-controllers (Arduino Zero)
---------------------------------------
## SAMD21 micro-controllers (Arduino Zero)
The SAMD21 bootloader is flashed via the ARM Serial Wire Debug (SWD)
interface. This is commonly done with a dedicated SWD hardware dongle.
@ -226,8 +223,7 @@ flash command within the first few seconds of boot - something like:
avrdude -c stk500v2 -p atmega2560 -P /dev/ttyACM0 -u -Uflash:w:out/klipper.elf.hex:i
```
SAMD51 micro-controllers (Adafruit Metro-M4 and similar)
--------------------------------------------------------
## SAMD51 micro-controllers (Adafruit Metro-M4 and similar)
Like the SAMD21, the SAMD51 bootloader is flashed via the ARM Serial
Wire Debug (SWD) interface. To flash a bootloader with
@ -255,8 +251,7 @@ like:
bossac -U -p /dev/ttyACM0 --offset=0x4000 -w out/klipper.bin -v -b -R
```
STM32F103 micro-controllers (Blue Pill devices)
-----------------------------------------------
## STM32F103 micro-controllers (Blue Pill devices)
The STM32F103 devices have a ROM that can flash a bootloader or
application via 3.3V serial. To access this ROM, one should connect
@ -276,7 +271,7 @@ for details on enabling the full uart on the Raspberry Pi GPIO pins.
After flashing, set both "boot 0" and "boot 1" back to low so that
future resets boot from flash.
### STM32F103 with stm32duino bootloader ###
### STM32F103 with stm32duino bootloader
The "stm32duino" project has a USB capable bootloader - see:
[https://github.com/rogerclarkmelbourne/STM32duino-bootloader](https://github.com/rogerclarkmelbourne/STM32duino-bootloader)
@ -301,7 +296,8 @@ bootloader is still active (the bootloader will flash a board led
while it is running). Alternatively, set the "boot 0" pin to low and
"boot 1" pin to high to stay in the bootloader after a reset.
### STM32F103 with HID bootloader ###
### STM32F103 with HID bootloader
The [HID bootloader](https://github.com/Serasidis/STM32_HID_Bootloader) is a
compact, driverless bootloader capable of flashing over USB. Also available
is a [fork with builds specific to the SKR Mini E3 1.2](
@ -389,8 +385,8 @@ not available, so it may be done by setting pin PA2 low if you flashed
the SKR Mini E3's "PIN" document. There is a ground pin next to PA2
which you can use to pull PA2 low.
STM32F4 micro-controllers (SKR Pro 1.1)
===============================================
## STM32F4 micro-controllers (SKR Pro 1.1)
STM32F4 microcontrollers come equipped with a built-in system bootloader
capable of flashing over USB (via DFU), 3.3v Serial, and various other
methods (see STM Document AN2606 for more information). Some
@ -423,8 +419,7 @@ setting "boot 0" low, "boot 1" high and plugging in the device. After
programming is complete unplug the device and set "boot 1" back to low
so the application will be loaded.
LPC176x micro-controllers (Smoothieboards)
------------------------------------------
## LPC176x micro-controllers (Smoothieboards)
This document does not describe the method to flash a bootloader
itself - see:
@ -439,8 +434,7 @@ this bootloader is to copy the application file (eg,
`out/klipper.bin`) to a file named `firmware.bin` on an SD card, and
then to reboot the micro-controller with that SD card.
Running OpenOCD on the Raspberry PI
-----------------------------------
## Running OpenOCD on the Raspberry PI
OpenOCD is a software package that can perform low-level chip flashing
and debugging. It can use the GPIO pins on a Raspberry Pi to