Robin Mueller
0552f08402
Some checks failed
Rust/va416xx-rs/pipeline/pr-main There was a failure building this commit
29 lines
1.2 KiB
Markdown
29 lines
1.2 KiB
Markdown
VA416xx Bootloader Application
|
|
=======
|
|
|
|
This is the Rust version of the bootloader supplied by Vorago.
|
|
|
|
The bootloader uses the following memory map:
|
|
|
|
| <0x0> | Bootloader start | <code up to 0x3FFE bytes> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x3FFE> | Bootloader CRC | <word> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x4000> | App image A start | <code up to 0x1DFFC (~120K) bytes> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x21FFC> | App image A CRC check length | <word> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x21FFE> | App image A CRC check value | <word> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x22000> | App image B start | <code up to 0x1DFFC (~120K) bytes> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x3FFFC> | App image B CRC check length | <word> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x3FFFE> | App image B CRC check value | <word> |
|
|
| -------- | ------------------ | ----------------
|
|
| <0x40000> | End of NVM | <end> |
|
|
| -------- | ------------------ | ----------------
|
|
|
|
As opposed to the Vorago example code, this bootloader assumes a 40 MHz external clock
|
|
but does not scale that clock up.
|