Clock speed, Led setting, Config & nmi – Sundance SMT335 User Manual
Page 17: Timer, Iiof interrupt

Version 3.0
Page 17 of 34
SMT335 User Manual
Clock Speed
You must consider EMIF device speeds when choosing the appropriate C6000 clock
speed. Under most circumstances, the C6201 would be set to 200MHz and have an
SBSRAM speed equal to the core speed; the C6701 would be set to 166MHz. See
the description of jumper JP1 on page Error! Bookmark not defined..
C6000 clock
SBSRAM
SDRAM
FPGA
133 133 67 67
166 166 83 83
200 100 100 100
200 200 100 100
LED Setting
The SMT335 has 5 LEDs.
LED 1 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. 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.
The remaining LEDs can be controlled with the LED register. Writing 1 will illuminate
the LED; writing 0 will turn it off.
See general firmware description
CONFIG & NMI
See general firmware description
Timer
See general firmware description
IIOF interrupt
From version 3.11.6 of the firmware it is possible to generate pulses on the external
interrupt lines of the TIM.
See general firmware description