Texas Instruments PGA302EVM-037, Руководство пользователя

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33 SLDU031 – December 2017
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PGAxxxEVM-037 Pressure Sensor Signal Conditioner Evaluation Module
4.15.4 Fault Status tab
The Fault Status tab shown in Figure 25 includes fault status registers for the digital interfaces, OWI
status, the power supply monitor, and AFE diagnostics for quick diagnosis and debug of the most common
device and EVM issues.
Table 6 describes the available fault status bits. Note that the AFE Diagnostics
must be enabled in the EEPROM Settings before they are updated in the Fault Status tab.
Figure 25. Fault Status tab
Table 6. Fault Status Indicators
Fault Indicator Description
I2C_ERR An error response on the access from I2C during access to the slave
OWI_ERR An error response on the access from OWI during access to the slave
TF_ERR Error response on the access from Trace FIFO
SYNC <320BPS SYNC field data rate under 320 bits per second
SYNC >9600BPS SYNC field data rate over 9600 bits per second
SYNC STOP Short SYNC stop bit too short
CMD STOP Bad Incorrect CMD stop bit value
CMD STOP Short CMD stop bit too short
Data STOP Bad Incorrect DATA stop bit value
Data STOP Short DATA stop bit too short
Data STOP Override DATA Field slave transmit value overdriven to dominant value during stop bit transmit
SYNC Tolerance Err Consecutive bits in the sync field are different by more than ±25% tolerance