| ??? 07/26/07 07:31 Read: times |
#142331 - bootvector/status byte Responding to: ???'s previous message |
Marek,
How do you program the 'RC2 chip? Are you aware of the existence of bootloader entry mechanism? When the chip is factory-fresh, the bootvector/status byte is set so that the bootloader is entered automatically without pulling /PSEN low. You need to reprogram those to run user code. Btw. watch out not to load /PSEN even by an excessive capacitance at startup, as this could cause the hardware bootloader entry. JW PS. Please enter your location in your profile - are you from CZ/SK? |
| Topic | Author | Date |
| Trouble migrating AT89C55WD to AT89C51RC2 | 01/01/70 00:00 | |
| 89C51 or 89V51? | 01/01/70 00:00 | |
| P89V51RC2 | 01/01/70 00:00 | |
| bootvector/status byte | 01/01/70 00:00 | |
| my question too | 01/01/70 00:00 | |
| It was the boot loader bit | 01/01/70 00:00 | |
second step? | 01/01/70 00:00 |