Spectrum Digital eZdsp TMS320C5515 Technical Reference page 20

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Spectrum Digital, Inc
2.2 System LEDs
The C5515 eZdsp USB Stick has 5 Light Emitting Diodes (LED). These LEDs are under
the application software control running on the C5515 processor. These LEDs are shown in
the table below.
LED #
DS1
DS2
DS3
DS4
DS5
2.3 Switches
The C5515 eZdsp USB Stick has two push button switches. These switches can be read
by application software running on the C5515 processor. These switches are shown in the
table below.
Switch #
SW1 only closed
SW2 only closed
SW1, SW2 closed
2.4 Jumpers
The C5515 eZdsp stick has one jumper, JP1. When this jumper is shorted the C5515
eZdsp stick will be powered from the target USB interface, not the embedded USB
interface. When this jumper is shorted the embedded USB emulation and debug capability
are no longer available. This jumper is shipped in the "open" state from the factory.
When the jumper J1 is shorted do NOT plug the connector
J2 into a USB port. This will damage the C5515 eZdsp stick.
2-10
Table 12: System LEDs
Schematic
Color Signal Name
Page
Green 2 C5515 XF
Green 11
Red 11
Yellow 11
Blue 11
Table 13: Switches
Schematic
Signal Name/Reading
Page
11 GPAIN1, approximately 1.2 volts
11 GPAIN1, approximately 0.9 volts
11 GPAIN1, approximately 0.72 volts
WARNING !
TMS320C5515 eZdsp USB Stick Technical Reference
GPIO17
GPIO18
GPIO15
GPIO14