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To read 2000 data words (tester firmware) from board in slot 7:
./coll2m.pl 7 2000 file_out_name

SPI work (see AD9648 data sheet page 8 and from page 52):
Since revision 16x500MHz_30, SPI comtrol has a mask: vme_register_5[7..0], adice VME address 0x14
Each bit is mask for one ADC chip: 
0x01 -> only ADC chip 1 is masked and all other can be accessed
0xFE -> only ADC chip 1 can be accessed and all other are masked

The SPI command has 24 bits; you write vme_register_6[23..0]
vme_register_6[23] - 0=write, 1=read
vme_register_6[22..8] - SPI register address [15..0]
vme_register_6[7..0] - SPI register value [7..0]

If you want to read ADC register 0x568, do this:
./vme7700 write 7 18 856800
./vme7700 write 7 4c 1 - generates pulse that sends SPI command to ADC chips, and writes data from ADC chip registers 0x568 into vme SPI registers
./vme7700 reaf 7 2c - reads vme SPI register 1 

To make the ADC chips send ramp (module in slot 7):
Set mask as you want.
./vme7700 write 7 3c 1 - fpga in test more
./vme7700 write 7 18 05500F - writes to register 6 - prepares SPI command for ADCs to send ramp
./vme7700 write 7 4C 1 - sends a pulse that starts the SPI interface and writes 0x0F to address 0x550 inside the ADC chips.
to read it back, read from vme register:
./vme7700 read 7 2C
You can make ADCs send stuff other than ramp"
./vme7700 write 7 18 055000 - writes to register 6 - prepares SPI command for ADCs for normal operation
./vme7700 write 7 18 055001 - writes to register 6 - prepares SPI command for ADCs to send mid scale short
./vme7700 write 7 18 055002 - writes to register 6 - prepares SPI command for ADCs to send positive full scale
./vme7700 write 7 18 055003 - writes to register 6 - prepares SPI command for ADCs to send negative full scale
./vme7700 write 7 18 055004 - writes to register 6 - prepares SPI command for ADCs to send alternating checker board
./vme7700 write 7 18 055007 - writes to register 6 - prepares SPI command for ADCs to send one/zero word toggle
./vme7700 write 7 18 05500F - writes to register 6 - prepares SPI command for ADCs to send ramp
You can also make them send a custom pattern... see data sheet, page 60

To make the ADC chip output user defined pattern, in order: 0x3420, 0x3521, 0x3622, 0x3723, write the following:
./vme7700 write 7 18 055180 - prepares SPI command 
./vme7700 write 7 4C 1 - generates pulse that sends SPI command to ADC chips
./vme7700 write 7 18 0552D0 - prepares SPI command 
./vme7700 write 7 4C 1 - generates pulse that sends SPI command to ADC chips
./vme7700 write 7 18 055384 - prepares SPI command 
./vme7700 write 7 4C 1 - generates pulse that sends SPI command to ADC chips
./vme7700 write 7 18 0554D4
./vme7700 write 7 4C 1 - generates pulse that sends SPI command to ADC chips
./vme7700 write 7 18 055588
./vme7700 write 7 4C 1
./vme7700 write 7 18 0556D8
./vme7700 write 7 4C 1
./vme7700 write 7 18 05578C
./vme7700 write 7 4C 1
./vme7700 write 7 18 055180
./vme7700 write 7 4C 1
./vme7700 write 7 18 0552D0
./vme7700 write 7 4C 1
./vme7700 write 7 18 055180
./vme7700 write 7 4C 1
./vme7700 write 7 18 0552D0
./vme7700 write 7 4C 1
./vme7700 write 7 18 055180
./vme7700 write 7 4C 1
./vme7700 write 7 18 0552D0
./vme7700 write 7 4C 1
./vme7700 write 7 18 055180
./vme7700 write 7 4C 1
./vme7700 write 7 18 055008 - prepares SPI command to activate used defined test mode
./vme7700 write 7 4C 1 - generates pulse that sends SPI command to ADC chips