| ??? 08/20/04 14:01 Read: times |
#76212 - RE: BLJB Responding to: ???'s previous message |
Both the Atmel data sheet and the "upgrade from T89... to AT89..." app note talk about it.
You program (clear) the BLJB to invoke the boot loader. Setting it will cause the user application (my program) to run. The algorithm goes: CLR EA DPTR = 4 ACC = 0 R1 = 0AH SETB ENBOOT (AUXR1 = 20H) LCALL 0FFF0H Wait for reset which didn't work for me... -- Tom Bachmann |
| Topic | Author | Date |
| AT89C51Rx2 ISP - No Touch | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch | 01/01/70 00:00 | |
| RE: BLJB | 01/01/70 00:00 | |
| RE: BLJB | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch working! | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch working! | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
RE: AT89C51Rx2 ISP - Bootloader address | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch working! | 01/01/70 00:00 | |
| RE: AT89C51Rx2 ISP - No Touch backdoor | 01/01/70 00:00 |