| ??? 09/10/04 19:20 Read: times |
#77217 - RE: matrix keyboard interfacing to 8051 Responding to: ???'s previous message |
Huzefa,
A favorite trick of mine to debug code is to use the serial port of the uprocessor to output a character when a certain point in the code is reached. I also use the serial port to output the values of certain variables that are of interest. I like Craig's idea of blinking an LED to make sure the uprocessor is not dead. You could use the serial port to output the hex value when a key is depressed. That way you be able to debug what is going on. Good Luck, Jacob |
| Topic | Author | Date |
| matrix keyboard interfacing to 8051 | 01/01/70 00:00 | |
| RE: matrix keyboard interfacing to 8051 | 01/01/70 00:00 | |
| Schematic, code, and test the circuit | 01/01/70 00:00 | |
| RE: Schematic, code, and test the circuit | 01/01/70 00:00 | |
| RE: Schematic, code, and test the circuit | 01/01/70 00:00 | |
| RE: Schematic, code, and test the circuit | 01/01/70 00:00 | |
| Port0 cannot emit high level | 01/01/70 00:00 | |
| RE: Port0 cannot emit high level | 01/01/70 00:00 | |
RE: Port0 cannot emit high level | 01/01/70 00:00 | |
| Debugging time | 01/01/70 00:00 | |
| RE: matrix keyboard interfacing to 8051 | 01/01/70 00:00 | |
| RE: LEDs and UART debug | 01/01/70 00:00 | |
| ALE vs LED | 01/01/70 00:00 | |
| RE: ALE vs LED | 01/01/70 00:00 | |
| Flow chart | 01/01/70 00:00 |