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docs: Update example openocd config in Bootloaders.md 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-10-23 19:01:47 -04:00
parent f07292084b
commit b8a6160646
1 changed files with 9 additions and 8 deletions
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17
docs/Bootloaders.md
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@ -193,9 +193,8 @@ interface. This is commonly done with a dedicated SWD hardware dongle.
Alternatively, one can use a
[Raspberry Pi with OpenOCD](#running-openocd-on-the-raspberry-pi).
To flash a bootloader with OpenOCD use a chip config similar to:
To flash a bootloader with OpenOCD use the following chip config:
```
set CHIPNAME at91samd21g18
source [find target/at91samdXX.cfg]
```
Obtain a bootloader - for example:
@ -231,9 +230,8 @@ 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
[OpenOCD on a Raspberry Pi](#running-openocd-on-the-raspberry-pi) use
a chip config similar to:
the following chip config:
```
set CHIPNAME at91samd51g19
source [find target/atsame5x.cfg]
```
Obtain a bootloader - several bootloaders are available from
@ -361,15 +359,18 @@ bcm2835gpio_swd_nums 25 24
bcm2835gpio_srst_num 18
transport select swd
# Set the chip (at91samd51j19 in this example)
set CHIPNAME at91samd51j19
# Use hardware reset wire for chip resets
reset_config srst_only
adapter_nsrst_delay 100
adapter_nsrst_assert_width 100
# Specify the chip type
source [find target/atsame5x.cfg]
# Set the adapter speed
adapter_khz 40
adapter_nsrst_delay 100
adapter_nsrst_assert_width 100
# Connect to chip
init
targets
reset halt