| Online Development Notebook > Index > ODN > Raw Device Programming > 1F - Read1WireCmd |
Command #1F - Read1WireCmd
VERSION 1.30+ of the firmware
Description:
Send a 1-wire (MicroLAN) byte⁄bit read on the previously selected port pin.
Command Format:
| Byte Number | Description |
| 0 | 1Fh: Read1WireCmd |
| 1 | <not used> |
| 2 | Byte⁄bit - 0 = write byte, 1 = write bit. Bit feature for VERSION 1.30+ of the firmware |
| 3 | <not used> |
| 4 | <not used> |
| 5 | <not used> |
| 6 | <not used> |
| 7 | <not used> |
Command Format Details:
Byte 0 contains the command. Byte 1 is not used.
Byte 2 selects reading either a byte or a bit.
This command does not set the port direction pins or select the pin to use as the 1-wire bus - it is the Reset1Wire command that does this.
Response Format:
| Byte Number | Description |
| 0 | 1Fh: Read1WireCmd |
| 1 | Data - Byte⁄bit read. |
| 2 | <not used> |
| 3 | <not used> |
| 4 | <not used> |
| 5 | <not used> |
| 6 | <not used> |
| 7 | <not used> |
Response Format Details:
Byte 0 contains the command. Byte 1 is the byte⁄bit data that was read. Byte 2 through byte 7 are unused.
If a 0 bit is read, data = 0. If a 1 bit is read, data is not 0.
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