AMC7832EVM Software Overview
16
SLAU544A – February 2014 – Revised September 2016
Copyright © 2014–2016, Texas Instruments Incorporated
AMC7832EVM User’s Guide
After the device is configured, individual channels can be enabled by selecting their respective
ADC MUX
button, as shown in
.
Figure 14. ADC Channel MUX
To trigger conversions, press the
Start Conv
button or automatically trigger conversions before every read
by enabling the auto-trigger checkbox. The ADC data registers, displayed on the right side of the GUI, are
updated with the converted results when the
Read ADC
button is pressed.
Most of the controls listed within the ADC image are used to setup the ADC configuration register. These
include the conversion rate and conversion mode parameters, which are selectable through their
respective drop-down list. The selectable conversion rates are listed in
Table 10. Conversion Rates
CONVERSION RATE
THROUGHPUT (ADC0 THROUGH ADC11)
(SINGLE-CHANNEL AUTO MODE)
THROUGHPUT (LVADC12 THROUGH LVADC16)
(SINGLE-CHANNEL AUTO MODE)
00
29 kSPS
87 kSPS
01
29 kSPS
43.5 kSPS
10
29 kSPS
29 kSPS
11
14.5 kSPS
14.5 kSPS
The conversion mode can be either auto or direct mode. In direct mode, the analog inputs, specified in the
ADC channel registers, are converted sequentially one time. In auto mode, the analog inputs are
converted sequentially and repeatedly. After a conversion is completed, the ADC multiplexer returns to the
first channel and repeats the process.
The internal local temperature sensor is accessible through the
LT Sensor
button and is updated after a
conversion is triggered and the
Read ADC
button is pressed.
5.2.4
AMC7832EVM DAC Page
The DAC page gives the user an interface to observe and control the different data registers, modes, and
configurations available for each individual DAC channel.
To fully activate the DAC block, set the
Enable Reference Block
. To set the DAC channels individually,
select their respective checkbox in the Power DACs column (see
).