Description
This function returns the value with a given bit width out of the frame at the given position. If width or position is out of range, the return value is 0.
Prototype
CPU_INT16U CanFrmGet(CANFRM *frm,
CPU_INT08U width,
CPU_INT08U pos);
| Parameter | Meaning |
|---|---|
| frm | Pointer to CAN frame |
| width | Width of value in bits in bit in range 1..32 or byte (1, 2 or 4). Note: Interpreting width in bit or byte depends on the configuration setting |
| pos | Position of first bit, which is used in the can frame in range 0..63.or of first byte. Note: Interpreting the position in bit or byte depends on the configuration setting |
Additional Information
Current limitation of this function: with data width of 1,2 or 4 byte the position range depends on the data width:
- width is byte (1): 0..7
- width is word (2): 0..6
- width is long (4): 0..4
Return Value
Value out of the CAN frame.