Timeline for UART communications using CAN bus differential signalling
Current License: CC BY-SA 4.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 4 at 17:31 | history | became hot network question | |||
| Jun 4 at 15:33 | vote | accept | DrMickeyLauer | ||
| Jun 4 at 12:34 | comment | added | DrMickeyLauer | @Attie I have updated the question. 100% sure it's UART over CAN, yeah. | |
| Jun 4 at 12:33 | history | edited | DrMickeyLauer | CC BY-SA 4.0 |
add scope picture
|
| Jun 4 at 10:38 | comment | added | Lundin | What does any of this "logic 0 is CANH = CANL = 2 V" even mean? That you have a bus with that characteristic or that you want one? Where are these voltages coming from? The nominal differential voltage of CAN is 2V so if you have CANH=3.7V, CANL=0.3V that's invalid noise. All of this sounds like an "XY problem", what is the actual problem you are trying to solve here? | |
| Jun 4 at 10:11 | answer | added | Justme | timeline score: 5 | |
| Jun 4 at 9:44 | history | edited | TonyM | CC BY-SA 4.0 |
Clairications. Presentation.
|
| Jun 4 at 9:38 | comment | added | Attie | If it's actually using a CAN transciever to drive the lines, then just use a CAN transciever to interface with it? Are you sure it's UART? Can you share a scope trace of the signal? | |
| Jun 4 at 9:31 | history | asked | DrMickeyLauer | CC BY-SA 4.0 |