Sundance SMT365 - Manual (Page 15)

Version 2.3 Page 15 of 28 SMT365 User Manual
Four output TTL I/O pins are available on connector JP1 for control or debugging.
Their values can be controlled by bits in the LED register. The GPIO pins 12 to 15
are connected to the leds D2 to D5 respectively.
Four of the LEDs (D7 to D10) are controlled by bits in the LED register. Writing ‘1’
illuminates the LEDs; writing ‘0’ turn it off.
The TTL I/O are available on the connector JP2 for control or debugging. They can
be controlled by bits in the same register.
LED D6 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.
LED Register
(0x900D0000)
31–4 3 2 1 0
LED
D10
LED
D9
LED
D8
LED
D7
RW,0 RW,0 RW,0 RW,0