| ??? 12/20/05 14:11 Read: times |
#105592 - you got a REAL problem Responding to: ???'s previous message |
I use AT89C51 controller and I used to know that I should use 33pF capacitors with oscillator , when I changed them with 22pF Led started to blink!
you got a REAL problem Do you have flying leads? if so all bets are off. Do you have a PCB layout with more than 1.5cm (0.5") traces from uC to crystal and caps? if so, redo the layout. there is no legal reason for what yoy see Erik |
| Topic | Author | Date |
| code works in emulator, not in 8051? | 01/01/70 00:00 | |
| well a simulator simulates | 01/01/70 00:00 | |
| Check CCT | 01/01/70 00:00 | |
| you talk about an In Circuit Emulator | 01/01/70 00:00 | |
| Actually it was an emulator | 01/01/70 00:00 | |
| OT: emulator, name | 01/01/70 00:00 | |
| now we got over the fun, I'm glad to pro | 01/01/70 00:00 | |
| not the code size | 01/01/70 00:00 | |
| (un)initialized SFR/RAM? | 01/01/70 00:00 | |
| may be, find something strange!! | 01/01/70 00:00 | |
LS vs HC | 01/01/70 00:00 | |
| i will check the stack | 01/01/70 00:00 | |
| Check your UUT first | 01/01/70 00:00 | |
| probably not the stack | 01/01/70 00:00 | |
| sorry... by "emulator" i mean ICE | 01/01/70 00:00 | |
| Do some simple checking first | 01/01/70 00:00 | |
| same problem... | 01/01/70 00:00 | |
| the thread is about an emulator y | 01/01/70 00:00 | |
| led is blinking now ;) | 01/01/70 00:00 | |
| you got a REAL problem | 01/01/70 00:00 | |
| thanks all, it's now solved. | 01/01/70 00:00 |