Reference Manual

PMAC 2 Software Reference

PMAC On-Line Command Specification 289

Example

VERSION .......... ; Ask PMAC for firmware version

1.12D ; PMAC responds

See Also

Resetting PMAC (Talking to PMAC)

On-line command DATE, TYPE

W{address}

Function

Write value(s) to a specified address(es).

Scope

Global

Syntax

W{address,{constant} [,{constant}...]

where:

• {address} consists of a letter X, Y, or L; an option colon (:); and an integer value from

0 to 65535 (in hex, $0000 to $FFFF); specifying the starting PMAC memory or I/O

address to be read;

• {constant} is an integer, specified in decimal or hexadecimal, specifying the value to

be written to the specified address;

• further {constants} specify integer values to be written into subsequent consecutive

higher addresses

Remarks

This command causes PMAC to write the specified {constant} value to the specified

memory word address, or if a series of {constant} values is specified, to write them to

consecutive memory locations starting at the specified address (it is essentially a memory

POKE command). The command can specify either short (24-bit) word(s) in PMAC’s X-

memory, short (24-bit) word(s) in PMAC’s Y-memory, or long (48-bit) words covering both

X and Y memory (X-word more significant). This choice is controlled by the use of the X, Y,

or L address prefix in the command, respectively.

Example

WY:$C002,4194304 ; This should put 5V on DAC2 (provided I200=0 so servo

; does not overwrite)

WY$720,$00C000,$00C004,$00C008,$00C00C

; This writes the first four entries to the encoder

; conversion table