Hardware; Ads1230Ref Hardware Block Diagram - Texas Instruments ADS1230REF User Manual

Hardware

5.2.5 S—Start Streaming
When S is issued, the ADS1230REF begins printing raw output codes from the ADS1230 in hexadecimal
format, separated by new lines. The device iterates continuously until a character is received from the
serial port.
S is used primarily by the EVM software for data collection.
5.2.6 D—Collect One Sample
Issuing the D command causes the ADS1230REF to report the latest collected sample from the ADS1230.
The sample is displayed in raw hexadecimal.
5.2.7 C—Set Channel
This command has no effect on the ADS1230 since there is only one channel.
• C0—set to channel 0
• C—(with no arguments) prints the current channel, always CHAN=0
5.2.8 Q—Query Parameters
Q causes the ADS1230REF to issue a coded string summarizing the current settings. The format of the
string is:
P[0,1]R[F,S]OIC0
followed by a carriage-return and linefeed.
6 Hardware
A block diagram of the ADS1230REF is shown in
in Appendix A.
FILTERING
LOAD CELL
CONNECTORS
20 ADS1230REF User's Guide
INPUT
CH1
ADS1230
POWER
SUPPL Y
Figure 8. ADS1230REF Hardware Block Diagram
Figure 8. The schematic and layout drawings are given
LCD SWITCHES
GPIO
MSP430F449
SPI
UART
+5V
USB-SERIAL
INTERFACE
+3.3V
USB CONNECTOR
SBAU125A – August 2007 – Revised September 2007
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