| ??? 08/25/05 10:12 Modified: 08/25/05 10:13 Read: times |
#100058 - no nonovolatile memory in 8052 Responding to: ???'s previous message |
There is no nonvolatile memory inside the 8052 (is it with Basic or not). Upon reset, the internal variables are reset to their default values; baudrate is determined by autobauding (that's why you need to press the spacebar).
Let me ask a couple of questions: do you have EPROM attached? How much and at which addresses (8000h+ or also in the extensions area, 2000h+ and 4000h+)? Is there also the high voltage source and circuit needed for EPROM programming? What happens if you write a line number and some command, say "10 PRINT 3"? Jan Waclawek PS: I hope you are not powering the board from the three AA cells any more... |
| Topic | Author | Date |
| "Software" problem with 8052 basic | 01/01/70 00:00 | |
| Bad RAM | 01/01/70 00:00 | |
| HW? | 01/01/70 00:00 | |
| Oops. | 01/01/70 00:00 | |
| more detailed definition | 01/01/70 00:00 | |
| no nonovolatile memory in 8052 | 01/01/70 00:00 | |
| hey jan | 01/01/70 00:00 | |
| Am I missing something ? | 01/01/70 00:00 | |
| circuit | 01/01/70 00:00 | |
| I do not know anythong about BASIC but w | 01/01/70 00:00 | |
| in fact, there is no EPROM... | 01/01/70 00:00 | |
Burning circuit ? | 01/01/70 00:00 |