Firmware-830 Command-020

TABLE ENTRY (20, 14h)

The TABLE ENTRY command stores a lookup table entry in non-volatile memory. The table entry value range is 0..1023. To filter out sensor values, set the 11th bit to mark that the table entry value shouldn't be output by the digitizer in stand-alone mode. In host mode, table entry values with the 11th bit set are output as 1024.

The command can be used in both host and stand-alone modes of operation. Upon completion of the TABLE ENTRY command the WiDig sends out the same message. This command is not available for digitizers with hardware v7.0 or lower.

The [BODY] of the TABLE ENTRY command:

000nnnnn:	nnnnn = [0..31]; table number
00000ddd:	ddd = [0..7]; table entry index MSB
0ddddddd:	ddddddd = [0..127]; table entry index LSB
0000xeee:	eee = [0..7]; table entry value MSB
	x = 0; output table entry value
	x = 1; don't output table entry value
0eeeeeee:	eeeeeee = [0..127]; table entry value LSB

Example:

To store value 312 as entry 256 in table 8, ie. to convert sensor value 256 into 312, send the following message:

240, 125, 0 {DEV}, 21 {TABLE ENTRY}, 8 {table number}, 2 {entry index MSB}, 0 {entry index LSB}, 2 {entry value MSB}, 56 {entry value LSB}, 247 (F0h, 7Dh, 00h, 15h, 08h, 02h, 00h, 02h, 38h, F7h)