Texas Instruments TUSS44 0 Series, User Manual

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13 SLAU822A – December 2019 – Revised April 2020
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TUSS44x0 EVM for Ultrasonic Sensors User's Guide
Table 3 lists descriptions of the device error status bits.
Table 3. Device Error Status Descriptions
DEVICE STATUS DESCRIPTION
VDRV_READY Set when VDRV power regulator has reached the programmed voltage level. This is also
indicated by VDRV_READY bit.
PULSE_NUM_FLT Set if the burst sequence was terminated before completing the pulse number selected. This
is also indicated by PULSE_NUM_FLT bit.
DRV_PULSE_FLT Set if there is a "stuck" fault detected during pulsing in a burst sequence. This is also
indicated by DRV_PULSE_FLT bit.
EE_CRC_FLT Set if there is a CRC Error when loading internal EEPROM memory. This is also indicated by
EE_CRC_FLT bit.
DEV_STATE Device State: 00 - LISTEN, 01 - BURST, 10 - STANDBY, 11 - SLEEP
Table 4 lists descriptions of the device information status bits.
Table 4. Device Information Status Descriptions
DEVICE STATUS DESCRIPTION
IO1 Pin IO1 Pin logic level status used for driver control.
IO2 Pin IO2 Pin logic level status used for driver control.
O3 O3 Pin logic level status used for zero-crossing.
O4 O4 Pin logic level status used for echo interrupt.
3.4.3 EVM Status
The GUI can automatically detect the presence of the MSP-EXP430F5529LP after being flash
programmed with the
tuss44x0-firmware.bat file. In the event of a successful, partially successful, or failed
connection between the PC, MSP-EXP430F5529LP, and TUSS44x0 EVM, the EVM status fields are
updated according to
Table 5 .
Figure 11. EVM Status – Success