Datasheet

1 2 3 4

LEDs

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2.3 LEDs

The TMS570LS12 HDK board has 19 LEDs. Eight of these LEDs (shown in Table 2-9) are under user

control. Those LEDs are controlled and programmed by NHET signals.

LEDs DS2, DS3, DS4, and DS5 indicate the presence of the power (+1.2 V, +5 V, 3.3 V, and 12 V) s on

the board. The LED functions are summarized in Table 2-9 and Table 2-10.

Table 2-9. Demo LEDs

LED Number Location Signals Color

D3 Left Top NHET1[17] White

D4 Top NHET1[31] White

D5 Right Top NHET1[0] White

D6 Right Bottom NHET1[25] White

D7 Bottom NHET1[18] White

D8 Left bottom NHET1[29] White

LED1 Left NHET1[27] White

LED2 Right NHET1[05] White

Table 2-10. Other LEDs as Indicator

Number LED Color

D1 nERROR Red

D10 XDS100V2 SCI RX Blue

D11 XDS100V2 SCI TX Blue

D12 XDS100V2 PWRENn Blue

D2 JTAG TDI Blue

D9 Ethernet Speed Blue

DS1 ARM JTAG Plugin Blue

DS2 VCC_1V2 Blue

DS3 VCC_5V Blue

DS4 VCC_3V3 Blue

DS5 VCC_12V Blue

2.4 S2 DIP Switch

There is one 4-position DIP switches located on the left-bottom corner at reference designator S2. By

default, all of the switches are set to the “OFF” position and should remain in that position when

completing the steps in this user's guide.

Figure 2-7. DIP Switch Settings

The S2 DIP switch is reserved for user application general purpose. Table 2-11 describes the function of

each channel on S2.

Physical Description SPNU568A–September 2012–Revised September 2013

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