Texas Instruments TMDXRM42HDK, Руководство пользователя

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2.3 LEDs
The RM42 HDK board has fourteen (14) LEDs. Four of them are under user control. Those LEDs are
controlled and programmed by GIO signals.
LED DS2, DS3, DS4, and DS5 indicate the presence of the power (+1.2 V, +5 V, 3.3 V, and 12 V) on the
board. The LED functions are summarized in
Table 2-7 and Table 2-8 .
Table 2-7. Demo LEDs
LED Number Location Signals Color
D2 Left Top GIOA6 White
D4 Left Bottom GIOA4 White
D5 Right Top GIOA3 White
D7 Right Bottom GIOA2 White
Table 2-8. Other LEDs as Indicator
Number LED Color
DS6 nERROR Red
D9 XDS100V2 SCI RX Blue
D8 XDS100V2 SCI TX Blue
D10 XDS100V2 PWRENn Blue
D1 JTAG TDI Blue
DS1 External JTAG Emulator Used Blue
DS5 VCC_1V2 Blue
DS3 VCC_5V Blue
DS2 VCC_3V3 Blue
DS4 VCC_12V Blue
2.4 Emulator and Pin Multiplexing Selection DIP Switch
There is one 2-position DIP switch (S5) located at 20-pin CTI JTAG header. By default, all of the channels
are set to the “OFF” position.
Figure 2-7. DIP Switch Settings
Table 2-9. S5 DIP Switch Functions
Switch OFF Position (left) ON Position (right)
S5:1
(1)
TI emulator ARM Emulator
S5:2 SPI EQEP
(1)
S5:1 indicates slide 1 on the S5 switch, S5:2 indicates slide 2 on the S5.
16 Physical Description SPNU567 – September 2012
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