| ??? 06/20/06 03:32 Read: times |
#118567 - What your code is doing... Responding to: ???'s previous message |
By doing the indirect operation to load the AUXR, you are writing to the upper half of the internal ram (as opposed to the internal xram), so you will read the correct value back. AUXR register exists in the SFR region, so you need to access it directly, not indirectly. Repeat your test with AUXR .equ 8eh ;if your include file doesn't already have it mov AUXR,#10h ;enable the xram and see what happens. Whilst I haven't used this part myself, other parts operate similarly and they too usually need a bit in a SFR set to enable the extra ram. |
| Topic | Author | Date |
| Ready to XRAM My Head Against the Wall! | 01/01/70 00:00 | |
| Show us the code! | 01/01/70 00:00 | |
| Post Your Code | 01/01/70 00:00 | |
| Code Posted | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| That's different on the Atmel | 01/01/70 00:00 | |
| After reading the datasheet.. | 01/01/70 00:00 | |
| Already Did All of That... | 01/01/70 00:00 | |
| What your code is doing... | 01/01/70 00:00 | |
| I'll Try That | 01/01/70 00:00 | |
| Thats the magic of 8051! | 01/01/70 00:00 | |
| But wait! There's more! | 01/01/70 00:00 | |
| an obvious miss | 01/01/70 00:00 | |
Problem Solved | 01/01/70 00:00 |