PCI-EK01 Users Manual (Rev 1.0)
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http://www.daqsystem.com
(2)
I/O address offset
input
“A0” and
Data
input
“80”, press
I/O Write
button.
=>All port (A/B/C) output of 82C55 will make Mode 0.
(3)
I/O address offset
input
“A4” and
Data
input
“FF”, press
I/O Write
button.
=>
”A” port of 82C55 record a “FF”.
(4) It confirms whether or not output exactly come out as refer to specification Oscilloscope and JP1
connector.
(5)
I/O address offset
input
“A4”
Data
input
“0”. After press
I/O Write
button, check the output od
Oscilloscope. It record
“FF” of 82C55 A port.
(6) In the above test (3) ~ (4), you perform it to a port B/C.
4.4 Counter
(1)
I/O address offset
input
“8” and
Data
input
“1”, press
I/O Write
button.
=> It is enable Counter 0 action.
(2)
I/O address offset
input
“4” and
Data
input
“3”, press
I/O Write
button.
=> Target setup counter records
“3”.
(3) The counter 0 input (Pin #11) of connector P1 apply High Active pulse at once. After that,
I/O
address offset
input
“0” and press
I/O Read
button. It confirms that current count make
“1”.
(4) It apply count pulse two times more. It confirm count over occurrence as reading a STATUS
register counter 0 and current counter value is
“3”.
(5) There is 3 Counter at PCI-EK01, remaining two counters shall test as above.
4.5 Timer
(1)
I/O address offset
input
“34” and
Data
input
“4”, press
I/O Write
button.
=> It loads a Timer 0 setup value to a register.
(2)
I/O address offset
input
“38” and
Data
input
“5”, press
I/O Write
button.
=> It turns over output in case of time-out at Auto-reload mode to frequency 0. At this time 5MHz
works if it try to confirm frequency. If it shows to formula
Frequency = 25M / (T 1)
A TMR_SET value shall over minimum 1.
(3) As result timer, it confirms that #22 (Timer 0) of P1 connector connect to Oscilloscope because
output works at pin #22.
(4)
I/O address offset
input
“38” and
Data
input
“d”, press
I/O Write
button.
=> It prints out 20nSEC pulse in case of time-out at Auto-reload mode to frequency 0. At this time
10MHz works if it try to confirm frequency. If it shows to formula
Frequency = 50M / (T 1)
A TMR_SET value shall over minimum 1.
(5) There is 3 Timer at PCI-EK01, remaining two timers shall test as above.
