| ??? 08/21/02 02:46 Read: times |
#27597 - RE: T89C51RD2 - small problem with ram |
Steve,
Well... do you mean jump over the code that increments it? It usually starts with the same value every time (17166) If I recall. But I just can't see how this is happening. This is a cut to length program enter length enter the # of pcs to cut it then cycles through feeding and cutting, displaying the count as it goes. This is just a flow for the program section. after the last data is entered Loop: lcall keyscan ;keyscan returns jnz Loop ;zero if no key held mov counth,#0 mov countl,#0 lcall showstat ;show stats on lcd ... feed and cut loop If I hold a key down it stays in the Loop, once the key is released it zeros the count. I know it is executing the mov codes, but the display starts at 17000 something. There has to be something about being in the bootloader that is doing it. If I burn an 87c51 or 89c52 and put it in the circuit it works fine. Since I started using the RD2 chip is when the problem popped up. I'm still reading the data sheet, I thought it might have something to do with the BSB, but the data sheet says it should be 00H after programming and it is. So...still looking for some help. Jon |
| Topic | Author | Date |
| T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
| RE: T89C51RD2 - small problem with ram | 01/01/70 00:00 | |
RE: T89C51RD2 - SOLVED | 01/01/70 00:00 |



