Nevion FRS-HD-XMUX4 - Manual (Page 31)

FRS-HD-XMUX4 Rev. C
nevion.com | 31
6.3 Commands intended for debug/lab use only
Block Blk
#
Commands example Response Control
spi - on | off spi on
spi off spi off used to isolate the uC from the
SPI lines during programming of the
flash by external programmer. spi on
must be issued in order to re-enable
normal card operation with the uC as
the SPI master.
spir - <address> spir 0x0004 Read a single word (or byte) from a
SPI registers. Addressing is 16b and
most significant nibble determines
which chip. These are the address
ranges:
0x0000
– 0x0fff : AES dir and SRC
0x1000 – 0x1fff : FPGA
0x2000 – 0x2fff : flash
0x3000 – 0x3fff : deserializer
0x4000 – 0x4fff : serializer
0x5000 – 0x5fff : shift register for
LEDs
0x6000
– 0x6fff : F-RAM
0x7000 – 0x7fff : Rotary switches
spiw - <address> <data> spiw 0x0004 0x2c With the same address ranges as for
spir above, this command allows the
user to modify SPI registers.
thebug - - thebug A collection of debug information that
is presented in a Multicon GYDA
block-like format. First line tells which
image is currently loaded. Second
line contains the filename and
version of the uC software, including
the AVR controller it was compiled
for. The third line contains the SW
flags in uC, the number of times the
watchdog timer has kicked in,
readout of dip-switches, input select
for deserializer, SDOn on/off, slew
rates, and status for the video
changeovers.
The next two lines contain raster
information from the deserializer and
serializer respectively, while the next
two lines contain sample values for
mlines and VCXO.