Timeline for Choosing a DSO, advice sought
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 19, 2011 at 22:27 | comment | added | vicatcu | @icarus74 glad I could help! | |
| Nov 19, 2011 at 20:23 | vote | accept | bdutta74 | ||
| Nov 19, 2011 at 20:22 | comment | added | bdutta74 | thanks for confirming @vicatcu, although very silly of me to ask about the LA model, since you pointed to the same one in your original post. Must've been cross-eyed ! Good news is that I've received the same LA and after some experimentation, did manage to decode the signal timing. Still struggling to get triggers set up, but with manual hit-n-trial, I've got enough. Thanks a ton. | |
| Nov 18, 2011 at 16:28 | comment | added | vicatcu | @icarus74 I think I actually have one of those logic analyzers :). Anyway, the DATA out is going to be a 0-5V signal that is directly consumable by a microcontroller UART. So yes, you should be able to decode it pretty easily. There's nothing proprietary about it - these modules basically output a "1" when they "lock" on the operational frequency, and a "0" when they don't, and constantly stream out serial data at the prescribed baud rate (whether or not there is an actual transmitter out there). | |
| Nov 7, 2011 at 17:04 | comment | added | bdutta74 | Okay great. BTW, does it make any sense to use this Logic Analyzer to determine the waveform s.t. the encoding logic can be determined ? I am pretty sure that the DATA out of that RF module is not Manchester/NRZ, but something proprietary. I believe it boils down to detecting the lengths HIGH/LOWs, and absolute waveform isn't essential. It that correct ? | |
| Nov 6, 2011 at 14:45 | comment | added | vicatcu | Yea that will be no problem at all - it's going to look like a serial data stream (square wave) at most 8 kBaud on a 50 MHz scope will work just fine for that signal | |
| Nov 6, 2011 at 10:09 | comment | added | bdutta74 | thanks for answering @vicatcu. Wicked Node is wicked cool !! $2k USD (or more) is certainly something I don't have to spare on my hobby project, so that is out of question. just to elaborate, I want to observe the waveform on the DATA pins of this module, s.t. I could decode it on my MCU. Is this something I could hope to do with the 50MHz DSO ? | |
| Nov 4, 2011 at 17:17 | history | answered | vicatcu | CC BY-SA 3.0 |