| ??? 03/05/09 02:31 Read: times |
#163078 - more pics Responding to: ???'s previous message |
Hello,
Thanks again for taking the time to read this. First, two more pictures to show an individual character instead of a repeating stream of characters. The first image HERE shows the U bitstream. When I program the uC to send a U out the serial port and up to HyperTerminal, I get the expected U character on the screen. The next image HERE shows the 3 bitstream. When I program the UC to send a 3 up to the computer serial port, I do not get the 3 in the terminal window....I get an f instead. Looking at the ASCII table for 3, the bitstream should be 00110011. However, I'm obviously actually receiving a 01100110 thus the f displayed in the terminal window but the question is why? Thanks again for your time, Brian |
| Topic | Author | Date |
| serial comm problem | 01/01/70 00:00 | |
| what about TI? | 01/01/70 00:00 | |
| thank you | 01/01/70 00:00 | |
| Be better... | 01/01/70 00:00 | |
| no luck | 01/01/70 00:00 | |
| Settings | 01/01/70 00:00 | |
| What is your XTAL frequency ? | 01/01/70 00:00 | |
| parity and XTAL | 01/01/70 00:00 | |
| Eh ? | 01/01/70 00:00 | |
| one or the other | 01/01/70 00:00 | |
| my mistake | 01/01/70 00:00 | |
| scope pictures | 01/01/70 00:00 | |
| whatizit? | 01/01/70 00:00 | |
| where I measured it... | 01/01/70 00:00 | |
| waveforms look OK | 01/01/70 00:00 | |
| question | 01/01/70 00:00 | |
| LSBit comes first after startbit | 01/01/70 00:00 | |
| cable | 01/01/70 00:00 | |
| isolation and ESD protection | 01/01/70 00:00 | |
I have blown very few, if any, MAX232's | 01/01/70 00:00 | |
| Your scope trace looks normal | 01/01/70 00:00 | |
| more pics | 01/01/70 00:00 | |
| show picture at PC side | 01/01/70 00:00 |