2.1.9
J9 – Communications Connector
2.1.10
J10 – LED Connector
2.1.11
J11 – LED Connector
2.1.12
JP1 – Default 'F2808 Boot Location
2.1.13
JP2 – Red LED
2.1.14
JP3 – Green LED
2.1.15
JP4 – Blue LED
2.1.16
JP5 – SCL
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Setup
This connector contains shorting shunts that connect the 'F2808 DSP to the TLC5944 LED drivers. The
shunts are preconfigured to properly connect the DSP’s GPIO control signals to the LED driver ICs. The
GND pins on this connector do not need shorting shunts because these pins are connected to the ground
plane of the PCB. The user can remove all shorting shunts to disconnect the 'F2808 from the TLC5944
ICs. This allows the user to connect control signals from a separate microprocessor to this connector to
program the LED drivers. The XERR signal does not need a shorting jumper because the user graphical
interface (GUI) software does not use this signal.
CAUTION
Do not drive the outputs of the TMS320F2808 on the DSP board with external
control signals.
This connector mates to the HPA358 LED board. The user also can connect a custom board to this
connector with a standard 30-pin ribbon cable with 0.1-inch pin-to-pin spacing. In order to minimize stray
inductance and ringing on the output traces, connections to this connector must be as short as possible.
This connector mates to the HPA358 LED board. The user also can connect a custom board to this
connector with a standard 30-pin ribbon cable with 0.1-inch pin-to-pin spacing. In order to minimize stray
inductance and ringing on the output traces, connections to this connector must be as short as possible.
When a short is connected between pins 1-2, the 'F2808 boots up from the USB port connector, J1. When
a short is connected between pins 2-3, the 'F2808 boots up from its internal flash EEPROM. The default
boot location is the 'F2808 internal EEPROM. Firmware updates to the EEPROM require changes to the
JP1 settings. The GUI software provides detailed instructions on how to update the firmware. If the user
configures the EVM to communicate through the RS-232 or Zigbee connector, short JP1 pins 1 and 2
together so that the DSP boots from the RS-232 or Zigbee connector.
This jumper must be shorted to connect the red LED driver’s OUT15 pin to the red LED. This jumper can
be opened to measure the current flowing into the OUT15 pin from the red LED.
This jumper must be shorted to connect the green LED driver’s OUT15 pin to the green LED. This jumper
can be opened to measure the current flowing into the OUT15 pin from the green LED.
This jumper must be shorted to connect the blue LED driver’s OUT15 pin to the blue LED. This jumper
can be opened to measure the current flowing into the OUT15 pin from the blue LED.
This jumper is used to program the EEPROM, U1, at assembly. This jumper must be shorted to connect
the TUSB3410 to the EEPROM for normal operation.
SLVU306 – April 2009
TLC5944EVM-358
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