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1 | ------------------------------------------------------------------------------- | |
2 | Microchip MCP2515DM-BM CAN bus demo board | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This is a set of example captures of the CAN signal on a Microchip | |
6 | MCP2515DM-BM CAN bus demo board. | |
7 | ||
8 | The signal grabbed is the (digital) CAN_RX pin of the MCP2515 chip. | |
9 | ||
10 | Details: | |
11 | http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en537141 | |
12 | ||
13 | ||
14 | Logic analyzer setup | |
15 | -------------------- | |
16 | ||
17 | The logic analyzer used was a Saleae Logic (at 4MHz): | |
18 | ||
19 | Probe MCP2515 pin | |
20 | ----------------------- | |
21 | 4 (orange) CAN_RX | |
22 | ||
23 | ||
24 | Data | |
25 | ---- | |
26 | ||
27 | The data contains various CAN sample frames at various CAN bitrates. | |
28 | ||
29 | The sigrok command line used was: | |
30 | ||
31 | sigrok-cli --driver fx2lafw -d samplerate=4mhz \ | |
32 | -p 3=CAN_RX,1,2,4-7 --time 3s -o <file> | |
33 |