Sundance SMT395Q - Manual (Page 15)

Version 1.0.7 Page 15 of 31 SMT395Q User Manual
CONFIG & NMI
See SMT6400 help file.
Timer
See SMT6400 help file.
IIOF interrupt
The firmware can generate pulses on the external interrupt lines of the TIM.
See SMT6400 help file.
LED
The SMT395Q has 14 LEDs.
The LED adjacent to the FPGA 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.
Two of the LEDs can be controlled with the LED register.
Writing 1 will illuminate the LED; writing 0 will turn it off.
LED Register
LED 0xB00D0000
31–4 3 2 1 0
TTL1 TTL0
LED
D8
LED
D7
RW,0 RW,0 RW,0 RW,0
Sixteen other LEDs are connected to the DSP’s GPIO pins 12-15 (4 per DSP).
TTL
The SMT395Q has 4 LVTTL (3.3V only) signals available on connector JP2.
TTL0 and TTL1 have been mapped in the LED register and TTL2 and TTL3 are left
unconnected for future use.