| ??? 05/25/07 07:31 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#139809 - according to the datasheet.... Responding to: ???'s previous message |
... it is enough to set any of the two bottommost bits of FCF (i.e. SWR=FCF.1 and BSEL=FCF.0). Setting SWR would seem to be the logical choice, as the software reset should also ensure that any SFR "spoiled" by the bootloader (or any other code residing in block 1) would be reset to the defaults.
The Philips bootloader does orl FCF,#02h. JW |
| Topic | Author | Date |
| Removing P89v51 Bootloader | 01/01/70 00:00 | |
| according to the datasheet.... | 01/01/70 00:00 | |
| Thanks Jan | 01/01/70 00:00 | |
| Maybe, but... | 01/01/70 00:00 | |
| Bootloader v7 and PSEN | 01/01/70 00:00 | |
| Details | 01/01/70 00:00 | |
| no pins needed ... | 01/01/70 00:00 | |
| Best solution: IAP? | 01/01/70 00:00 | |
| backdoor | 01/01/70 00:00 | |
| TxD pulled down for ISP. Clever! | 01/01/70 00:00 | |
| IAP | 01/01/70 00:00 | |
| if this is a problem | 01/01/70 00:00 | |
| the enhanced bootloader... | 01/01/70 00:00 | |
| what enhanced bootloader | 01/01/70 00:00 | |
| options | 01/01/70 00:00 | |
| no, did not | 01/01/70 00:00 | |
| OT: SiLabs -> NXP? | 01/01/70 00:00 | |
| no, NXP ->SILabs | 01/01/70 00:00 | |
SST89V516RD/SST89E516RD for 5V/3V part | 01/01/70 00:00 |