Specifications

Chapter 2 Firmware Commands 69
Parameter Set
Note:
MicroTouch provides this command for compatibility with older touchscreen
controllers. To ensure compatibility with all existing and future MicroTouch controllers,
do not use this command when developing your touch drivers and applications.
Syntax: <SOH>Ppds[b]<CR>
where:
p
= Parity type.
N = No parity
O = Odd parity
E = Even parity
d=
Number of data bits (7 or 8).
s=
Number of stop bits (1 or 2).
b = Communication rate.
1 = 19200 baud 4 = 2400 baud
2 = 9600 baud 5 = 1200 baud
3 = 4800 baud
Description: Lets you adjust the communication parameters (parity, data bits, and
stop bits) of the controller. Optionally, you can change the
communication rate by appending an additional character to the
command string. Upon execution of the Parameter Set command, the
controller automatically stores the new settings, the current operating
mode, and the current data format in NOVRAM.
The communication parameters of the host system must match the
present settings of the controller when the command is given for it to
be accepted and the changes implemented.
The process of changing the parameters takes three steps:
The host system must first communicate with the controller using a
matched set of parameters.