| ??? 12/27/09 15:10 Read: times Msg Score: +2 +2 Good Answer/Helpful |
#171947 - The Mux Can Work Responding to: ???'s previous message |
Hardick:
The MUX logic should be able to work. The user would send requests to get GPS data via the GPS modem. To see these requests the MCU shall set its P1.0 to a high level (1). After the request is received but before the reply is sent back the MCU would switch the MUX control at P1.0 to a low level (0) and read in the next GPS reading from the GPS device. This plan requires that the GPS device is set to send its GPS reading in a repeatitive manner and that the MCU firmware is able to properly sync with the GPS unit framing so as to receive the complete GPS frame. After the GPS data has been received the firmware can flip P1.0 back to a high (1) and resume communications with the user over the GSM Modem port and send the reply data. Michael Karas |
| Topic | Author | Date |
| program logic help | 01/01/70 00:00 | |
| then why did you include it | 01/01/70 00:00 | |
| Problem | 01/01/70 00:00 | |
| The Mux Can Work | 01/01/70 00:00 | |
| Corrigendum & addendum (edited) | 01/01/70 00:00 | |
You could have avoided all this! | 01/01/70 00:00 |