June 2005, Issue 179

Accurate Capacitance Meter
Cypress PSoC High Integration Challenge 2004 Contest Winner

UART COMMANDS

The UART is used primarily for maintenance, testing, and taking consecutive measurements for statistical analyses. It uses the PSoC UART module’s high-level capabilities to parse the input commands. A space character is used as a delimiter. CR is a line terminator.

Commands follow a simple syntax: a single letter followed by an integer number. The commands are listed in Table 1 After a command string is issued, the device replies with a response listing the values of the parameters C (no unit), H (no unit), L (no unit), R (ohms), V_DD (millivolts), and V_REF (millivolts).