0x42 – Select A/D Input
Length:
3 Bytes
Parameters: 0x00=Select Input A0 (P1.0)
0x01=Select Input A1 (P1.1)
0x02=Select Input A2 (P1.2)
0x03=Select Input A3 (P1.3)
0x04=Select Input A4 (P1.4)
0x05=Select Input A5 (P1.5)
0x06=Select Input A6 (P1.6)
0x07=Select Input A7 (P1.7)
0x08=Select Input Veref+
0x09=Select Internal Input Vref-/Veref-
0x0A=Select Internal Temperature Diode
0x0B=Select Internal Input (Avcc – Avss)/2
Returns:
Function:
Example:
1 Byte: command echo acknowledgement=0x42
This function selects the analog input to be used by the specified A/D converter
0x3, 0x42 0x03 – Selects Analog Input A3
0x43 – Select Reference Source
Length:
3 Bytes
Parameters: 0x00=Select Reference AVCC & AVSS
0x01=Select Reference VREF & AVSS (refer to command 0x44 to configure VREF)
0x02=Select Reference VEREF+ buffered & AVSS
0x03=Select Reference VEREF+ & AVSS
0x04=Select Reference AVCC & VEREF-
0x05=Select Reference VREF & VEREF- (refer to command 0x44 to configure VREF)
0x06=Select Reference VEREF+ buffered & VEREF-
0x07=Select Reference VEREF+ & VEREF-
Returns:
Function:
Example:
1 Byte: command echo acknowledgement=0x43
This function sets the A/D and D/A references to be external
0x2, 0x43, 0x01 – Select the Internal Voltage Reference VREF as the source
0x44 – Internal Reference Voltage
Length:
Parameters:
Returns:
Function:
Example:
3 Bytes
0 = +1.0V; 1 = +2.0V; 2 = +2.5V
1 Byte: command echo acknowledgement=0x44
This function sets the A/D and D/A references to be internal; use command 0x50 to
select the Internal Voltage Reference value
0x2, 0x44, 0x01 – Select Internal Voltage Reference of +2.0V
Rev. 1.1 (November 2011)
7
? DLP Design, Inc.