USB2-F-7x01 Full-Speed USB to 1-Port CANBus Adapter Datasheet

Version 1.4

Document Reference No.: CP_000050 Clearance No.: CP#040

Copyright © Connective Peripherals Pte Ltd

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4.1.12

Get Status Flags (F)

Summary

Get CANbus and controller status. A two-byte BCD number is returned to correspond to the 8-bits of the

COMSTAT register of the PIC18F2680.

Definition

F<CR>

Parameters

None

Remarks

Example

F<CR>

Get CANbus status

Return Codes

xx<CR> = OK

xx = CANbus status (A bit set to “1” indicates a true condition):

bit 0 = Flag bit 1 –or– Flag bit 2 is set

bit 1 = Receive Warning: 127 >= Receive Error Counter > 95

bit 2 = Transmit Warning: Transmit Error Counter > 95

bit 3 = Receive Bus Passive: Receive Error Counter > 127

Will cause RED LED to Single Flash

bit 4 = Transmit Bus Passive: Transmit Error Counter > 127

Will cause RED LED to Single Flash

bit 5 = Transmit Bus-OFF: Transmit Error Counter > 255

Will cause RED LED to remain ON

bit 6 = Receive Buffer 1 Overflow

bit 7 = Receive Buffer 0 Overflow

<BELL> = ERROR

4.1.13

Get Hardware and Firmware Versions (V)

Summary

Get hardware and firmware version numbers of USB2-F-7x01. Each value consists of a two-digit, binary

coded decimal (BCD) number.

Definition

V<CR>

Parameters

None

Remarks

Example

V<CR>

Get serial number