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Global bus, Led setting, Config & nmi – Sundance SMT365G User Manual

Page 14: Timer, Iiof interrupt

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Version 1.0.0

Page 14 of 23

SMT365G User Manual

Global bus


The SMT365G provides one global bus interface.
See general firmware description [7]

LED Setting


The SMT365G has 9 LEDs.

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.
Four of the LEDs (D7-10) can be controlled with the LED register. Writing 1 will
illuminate the LED; writing 0 will turn it off.

Currently the SMT365G only implements 2 of these leds D7 and D8.

LED Register

LED 0x900D0000

31–4 3

2

1

0

LED

D10

LED

D9

LED

D8

LED

D7

RW,0 RW,0 RW,0 RW,0


The four remaining LEDs (D2-5) are connected to the C60’s GPIO pins 12-15.

CONFIG & NMI

See general firmware description [7]

Timer

See general firmware description [7]

IIOF interrupt

The firmware can generate pulses on the external interrupt lines of the TIM.
See general firmware description [7]