12
13-
Measure system frequency:
Use the "Set Address" routine to set address
DUT 1 = 0x7b
DUT2 = 0x7f
use write routine to write
0x1
Wait 15 ms
Use the "Set Address" routine to set address
DUT 1 = 0x78
DUT2 = 0xf8
use read routine to read
D[7..0]
Use the "Set Address" routine to set address
DUT 1 = 0x79
DUT2 = 0xf9
use read routine to read
D[15..8]
Use the "Set Address" routine to set address
DUT 1 = 0x7a
DUT2 = 0xfa
use read routine to read
D[23..16]
system frequency = (D[23..16] D[15..8] D[7..0])*100/1048575 MHz
For example if the read numbers were 0x5, 0x 55 & 0x46 then 0x55546 = decimal 349510 *100/1048575 = 33.33 MHz.
14-
Measure DUT Voltages and current:
Select the voltage or current to convert
Use the "Set Address" routine to set address
DUT 1 = 0x67
DUT2 = 0xe7
use write routine to write
D[7..0] Signal to Convert & Read
0X08
+2.5V Reference
0X09
+12V UUT
0X0A
+5V UUT
0X0B
+3.3V UUT
0X0C
+5V Aux
0X0D
C5V
0X0E
C12V
0X0F
C3.3V
Wait 10 ms after
selecting the signal
Start Conversion
Use the "Set Address" routine to set address
DUT 1 = 0x68
DUT2 = 0xe8
use extended write routine to write.
0x0
Wait 2 ms
To read data, shift data to a parallel register
Use the "Set Address" routine to set address
DUT 1 = 0x69
DUT2 = 0xe9
use write routine.
0x0
Repeat this write 13 times.
To read converted Data out
Use the "Set Addres s" routine to set address
DUT 1 = 0x6a
DUT2 = 0xea
use read routine to read the data.
Use the "Set Address" routine to set address
DUT 1 = 0x6b
DUT2 = 0xeb
use read routine to read the data.
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