| ??? 03/03/09 20:54 Read: times |
#163034 - parity and XTAL Responding to: ???'s previous message |
Thanks again for the reply. I have the parity set to none in HyperTerminal. As for the XTAL, the documentation I have for the eval. board I'm using shows an 11.0592 MHz XTAL and what I believe is a 32.768 kHz XTAL. Please see the image below.
Regarding the characters I get back, I do get a U in the terminal window when I program the uC to send a U up. However, I get strange results when sending characters other than U from the uC up to HyperTerminal. I'm just using the standard terminal program included with XP and receiving the data over a real (as opposed to a USB to serial adapter) 9 pin serial port. Hope that helps clarify and thanks again, 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 |