Skip to content

README.md: Adds instructions how to obtain bootloader-details #73

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Dec 20, 2019
Merged

README.md: Adds instructions how to obtain bootloader-details #73

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 10 additions & 1 deletion README.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,16 @@ You can extend or override the default configuration using `mbed_app.json` in th

- Common configuration

Regardless of where the firmware candidate is located (internal or external), there is a need to have a bootloader in place. The binary of the booloader can be specified with the `bootloader_img` option. The address and size of the bootloader determines the `application-details` and `bootloader-details` options. The value of `bootloader-details` can be obtained by running the binary on the target and observing the serial output.
Regardless of where the firmware candidate is located (internal or external), there is a need to have a bootloader in place. The binary of the booloader can be specified with the `bootloader_img` option. The address and size of the bootloader determines the `application-details` and `bootloader-details` options. The value of `bootloader-details` can be obtained by checking for the symbol from the map file of the binary. Example python code for obtaining the location:
```python
with open("BUILD/UBLOX_EVK_ODIN_W2/GCC_ARM/mbed-bootloader.map", 'r') as fd:
s = fd.read()

regex = r"\.rodata\..*{}\s+(0x[0-9a-fA-F]+)".format("bootloader")
match = re.search(regex, s, re.MULTILINE)
offset = int(match.groups()[0], 16)
print hex(offset)
```

Review the [mbed-bootloader](https://github.com/ARMmbed/mbed-bootloader#configurations) guidelines on how these options should be selected. Review the [bootloader configuration](2.-Bootloader-configuration) section below for more information.

Expand Down