Texas Instruments EVM430-FR6989, Руководство пользователя, Страница: 12 / 22

1
2 LC
S
LC Sensor Board
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If the sensor boards are not used, the Port 9 and P1.3 can be used as normal GPIOs. The pin
configuration of ESI port is shown in
Table 6 .
Table 6. PORT_9/ESI Pin Configuration
Function Pin Number Function
TARGET_GND 1 2 TARGET_3V3
ESIVSS 3 4 ESIVCC
ESICOM 5 6 ESICI
P9.7/ESICI3/A15/C15 7 8 P9.6/ESICI2/A14/C14
P9.5/ESICI1/A13/C13 9 10 P9.4/ESICI0/A12/C12
P9.3/ESICH3/ESITEST3/A11/C11 11 12 P9.2/ESICH2/ESITEST2/A10/C10
P9.1/ESICH1/ESITEST1/A9/C9 13 14 P9.0/ESICH0/ESITEST0/A8/C8
TARGET_GND 15 16 P1.3/ESITEST4/TA1.2/A3/C3
2.3.7 GPIO Ports
Some of the GPIO pins are routed to the edge of the board as shown in Table 7 .
Table 7. GPIO Configuration
Pin PORT_1_4 Pin Pin PORT_6_8 Pin
P1.0 1 2 P1.1 P6.0 1 2 P6.1
TARGET_GND 3 4 TARGET_GND P6.2 3 4 TARGET_GND
P1.6 G
(1)
5 6 P1.7 P8.4 5 6 P8.5
P4.2 G
(1)
7 8 P4.3 P8.6 7 8 P8.7
Pin PORT_2_3 Pin Pin PORT_J Pin
P2.0 G
(1)
1 2 P2.1 PJ.0 1 2 PJ.1
P2.2 3 4 P2.3 PJ.2 3 4 PJ.3
P3.4 5 6 P3.5 PJ.4 5 6 PJ.5
P3.6 7 8 P3.7 PJ.6 7 8 PJ.7
(1)
Pin G = TARGET_GND
3 LC Sensor Board
This LC sensor board is designed for rotation detection using LC sensors.
There are several configuration can be used: two sensors, three sensors, or four sensors. The default
option is two LC sensors in 90° separation. Each sensor consists of one inductor and one capacitor.
Table 8 shows the default components.
Table 8. Components Used for Different LC Sensor
Configuration
Component Used
Two Channels (90°) (Default) L1, L2, C1, C2
Two Channels (45°) L1, L5, C1, C2
Three Channels L2, L6, L7, C1, C2, C3
The following is the example value for the LC sensor. The oscillating frequency of this sensor is
approximately 500 kHz. ( ).
12 EVM430-FR6989 Evaluation Kit SLAU611 – January 2015
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