Texas Instruments C2000 Workshop Guide And Lab Manual

Analog-to-Digital Converter
C2000 Microcontroller Workshop - Analog-to-Digital Converter 6 - 3
Analog-to-Digital Converter
ADC Block and Functional Diagrams
ADC Module Block Diagram
12-bit A/D
Converter
SOCx
EOCx
ADCINA0
ADCINA1
ADCINA7
ADCINB0
ADCINB1
ADCINB7
S/H
A
S/H
B
MUX
MUX
A
RESULT0
RESULT1
RESULT2
RESULT15
Result
MUX
MUX
B
ADC
Generation
Logic
ADC full-scale
input range is
0 to 3.3V
CHSEL
ADC
Interrupt
Logic
SOC0 TRIGSEL CHSEL ACQPS
SOC1 TRIGSEL CHSEL ACQPS
SOC2 TRIGSEL CHSEL ACQPS
SOC3 TRIGSEL CHSEL ACQPS
SOC15 TRIGSEL CHSEL ACQPS
SOCx Triggers
ADCINT1-9
Software
External Pin
(GPIO/XINT2_ADCSOC)
EPWMxSOCA (x = 1 to 8)
EPWMxSOCB
(x = 1 to 8)
CPU Timer (0,1,2)
SOCx Signal
ADCINT1
ADCINT2
SOCx Configuration Registers
The ADC module is based around a 12-bit converter. There are 16 input channels and 16 result
registers. The SOC configuration registers select the trigger source, channel to convert, and the
acquisition prescale window size. The triggers include software by selecting a bit, CPU timers 0,
1 and 2, EPWMA and EPWMB 1 through 8, and an external pin. Additionally, ADCINT 1 and 2
can be fed back for continuous conversions.
The ADC module can operate in sequential sampling mode or simultaneous sampling mode. In
simultaneous sampling mode, the channel selected on the A multiplexer will be the same channel
on the B multiplexer. The ADC interrupt logic can generate up to nine interrupts. The results for
SOC 0 through 15 will appear in result registers 0 through 15.

Texas Instruments C2000 Specifications

General

Brand	Texas Instruments
Model	C2000
Category	Microcontrollers
Language	English