Robin Mueller
0552f08402
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1.2 KiB
1.2 KiB
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 | |
| -------- | ------------------ | ---------------- |
| <0x4000> | App image A start | <code up to 0x1DFFC (~120K) bytes> |
| -------- | ------------------ | ---------------- |
| <0x21FFC> | App image A CRC check length | |
| -------- | ------------------ | ---------------- |
| <0x21FFE> | App image A CRC check value | |
| -------- | ------------------ | ---------------- |
| <0x22000> | App image B start | <code up to 0x1DFFC (~120K) bytes> |
| -------- | ------------------ | ---------------- |
| <0x3FFFC> | App image B CRC check length | |
| -------- | ------------------ | ---------------- |
| <0x3FFFE> | App image B CRC check value | |
| -------- | ------------------ | ---------------- |
| <0x40000> | End of NVM | |
| -------- | ------------------ | ---------------- |
As opposed to the Vorago example code, this bootloader assumes a 40 MHz external clock but does not scale that clock up.