Texas Instruments SLAU081 用户手册
ADC and DAC Direct Access
2-11
Getting Started
2.5
ADC and DAC Direct Access
J10 and J11 offer users the facility to directly inspect the digital signals coming
from and going to the ADC and DAC.
from and going to the ADC and DAC.
Reference
Designator
Description
Pin
Number
Signal
J10
Allows the user direct access to all digital signals for the ADC
1
Digital ground
g
g
2
SDO
3
Digital ground
4
SCLK
5
Digital ground
6
CS or CS/FS
7
Digital ground
8
FS
J11
Allows the user direct access to all digital signals for the DAC
1
Digital ground
g
g
2
SDI
3
Digital ground
4
SCLK
5
Digital ground
6
CS
7
Digital ground
8
FS
2.6
Host Communication
There are two ways to connect a host system (DSP/microprocessor):
-
Texas Instruments’ new DSKs provide two dedicated 80-pin connectors.
The EVM can be plugged directly onto these DSKs. This connector
standard is referred to as the common connector.
The EVM can be plugged directly onto these DSKs. This connector
standard is referred to as the common connector.
-
Legacy DSKs not equipped with the 80-pin common connectors will
communicate via the daisy-chained legacy header.
communicate via the daisy-chained legacy header.
The following sections discuss each connection method.