Sundance SMT361Q - Manual (Page 15)

Version 1.0.2 Page 15 of 24 SMT361Q User Manual
LED
The SMT361Q has 21 LEDs.
The LED D14 on the top right corner of the module always displays the state of the
FPGA DONE pin. This LED is off when the FPGA is configured (DONE=1) and on
when it is not configured (DONE=0).
This LED should go on when the board is first powered up and go off when the FPGA
has been successfully programmed (this is the standard operation of the boot code
resident in the flash memory device). If the LED does not light at power-on, check
that you have the mounting pillars and screws fitted properly. If it stays on, the DSP
is not booting correctly, or is set to boot in a non-standard way.
Each DSP can directly control the state of 4 LEDs connected to the GPIO pins 12 to
15.
Each DSP can control the state of 1 LEDs and one TTL pins through the FPGA.
Writing 1 will illuminate the LED; writing 0 will turn it off.
LED Register
LED 0x900D0000
31–2 1 0
TTL LED
RW,0 RW,0
TTL pins
The SMT361Q has 4 TTL signals available (one from each DSP) available on
connector JP3.