Rainbow-electronics GM862-QUAD-PY Manual do Utilizador descarregar pdf (Página 61)

GM862-QUAD / PY Hardware User Guide

1vv0300748 Rev. 5 - 20/09/07

11 ADC section

11.1 ADC converter

11.1.1 Description

The GM862-QUAD / PY module provides a Analog to Digital Converter. The input line (named

ADC_IN1) is available on pin #6 of the B2B connector of the module and on pin #19 of PL103

on EVK2 Board.

The on board A/D is 11-bit converter. It is able to read a voltage level in the range of 0÷2 volts

applied on the ADC pin input, store and convert it into 11 bit word.

Min Max Units

Input Voltage range 0 2 Volt

AD conversion - 11 bits

Resolution - < 1 mV

11.1.2 Using ADC Converter

An AT command is available to use the ADC function.

The command is AT#ADC=1,2

The read value is expressed in mV

Refer to SW User Guide or to GM862-QUAD / PY AT Commands User Guide for the full

description of this function.

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