| ??? 03/03/05 06:41 Read: times |
#88943 - Hardware/software Responding to: ???'s previous message |
I feel that you have to many variables in trying to debug your problem. Personally I would:
1: Program the VB to continuously send the character 'U' to the serial port with a short delay between charcters. 2: Next check the micro RXD pin with an oscilloscope. This will tell you if the character in reaching the micro as well as confirming that the baud rate is correct, just in case your VB messes with the baudrate between receiving and transmitting. This should give you a better indication as to the source of your problem. Good luck, Tony |
| Topic | Author | Date |
| 8051 <-> RS232 comunication | 01/01/70 00:00 | |
| VB to Microcontroller | 01/01/70 00:00 | |
| Very Informative! | 01/01/70 00:00 | |
| Language(s)? | 01/01/70 00:00 | |
| Languages | 01/01/70 00:00 | |
| Line buffering? | 01/01/70 00:00 | |
| furthermore Russell Bull | 01/01/70 00:00 | |
| Line buffering | 01/01/70 00:00 | |
| buffer | 01/01/70 00:00 | |
| Serial Comms and Visual Basic | 01/01/70 00:00 | |
| Another URL | 01/01/70 00:00 | |
| MSComm config | 01/01/70 00:00 | |
| More on VB setup | 01/01/70 00:00 | |
| VB Setup | 01/01/70 00:00 | |
| Code for 8051/VB | 01/01/70 00:00 | |
| Thank you | 01/01/70 00:00 | |
| MSDN | 01/01/70 00:00 | |
| Flush your buffers | 01/01/70 00:00 | |
| Stu | 01/01/70 00:00 | |
| REN ??? | 01/01/70 00:00 | |
| REN !! | 01/01/70 00:00 | |
| Hardware/software | 01/01/70 00:00 | |
| Got a MAX232 or 1488/9 chip? | 01/01/70 00:00 | |
MAX232 and oscilloscope | 01/01/70 00:00 |