| ??? 03/05/09 16:20 Read: times |
#163098 - Always keep a tiny boot loader Responding to: ???'s previous message |
I think Erik have a part of the boot loader (or the full boot loader) permanent in the chip.
You can always write a boot loader that survives failures when updating an application. The boot loader checks CRC or similar and if the app area is OK, then the app is started, else the boot loader waits for a new attempt to upgrade (or possibly restarts a previous generation of the application). To my knowledge, no processor can allow replacement of the initial boot loader without having a short interval where it does not support power loss or a reboot or hang. |
| Topic | Author | Date |
| Terms and conditions of Bootloader v7 | 01/01/70 00:00 | |
| IANAL | 01/01/70 00:00 | |
| male cow manure | 01/01/70 00:00 | |
| Interesting... share? | 01/01/70 00:00 | |
Always keep a tiny boot loader | 01/01/70 00:00 | |
| Read the P89v51 data sheet | 01/01/70 00:00 | |
| So NXP is responsible for??? | 01/01/70 00:00 | |
| Upgrade USING, or upgrade TO v7? | 01/01/70 00:00 | |
| Using v7 | 01/01/70 00:00 |