Difference between revisions of "OptoOut8-I2C"

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Line 1: Line 1:
 
+
[[File:tindie-mediums.png|link=https://www.tindie.com/products/5158/]]
 
 
== Eight Channel Optically Isolated Output Card with I2C bus ==
 
  
 
[[File:OptoOut8-I2C-X3-CCA-5452-640px.jpg]]
 
[[File:OptoOut8-I2C-X3-CCA-5452-640px.jpg]]
Line 8: Line 6:
  
 
* Eight optically-isolated output channels on card
 
* Eight optically-isolated output channels on card
** (8) 4N25 optoisolators
+
** (8) [https://www.vishay.com/docs/83725/4n25.pdf 4N25] optoisolators
* I2C interface
+
* [http://ww1.microchip.com/downloads/en/DeviceDoc/MCP23008-MCP23S08-Data-Sheet-20001919F.pdf MCP23008] I2C Parallel I/O
** [http://ww1.microchip.com/downloads/en/DeviceDoc/MCP23008-MCP23S08-Data-Sheet-20001919F.pdf MCP23008] I2C Parallel I/O
+
** I2C (Two Wire interface)
** Two Wire interface
 
 
** 100/400 KHZ operation
 
** 100/400 KHZ operation
** 25mA sink/source capability per I/O
 
 
** Jumper selectable 2.2K Ohm terminators
 
** Jumper selectable 2.2K Ohm terminators
 
** 3-bit address (Jumper selectable) - Up to 8 boards
 
** 3-bit address (Jumper selectable) - Up to 8 boards
 
** Single 4-pin host interface connector (Ground, Power, Clock, Data)
 
** Single 4-pin host interface connector (Ground, Power, Clock, Data)
* 24LC024 Personality EEPROM
+
* [https://www.mouser.com/ProductDetail/579-24LC024-P 24LC024] [[Open_Data_Acquisition_System#Personality_EEPROM|ODAS Personality EEPROM]]
 +
** pid = 5
 
** Write protect jumper
 
** Write protect jumper
 
* 5V operation
 
* 5V operation
Line 31: Line 28:
 
=== Optocoupler Performance ===
 
=== Optocoupler Performance ===
  
* 4N25 Optocoupler
+
* [https://www.mouser.com/ProductDetail/Lite-On/4N25?qs=gnaPJ2cis70RM9udB%2FP83w%3D%3D 4N25 Optocoupler]
 
* DC Current Transfer Ratio
 
* DC Current Transfer Ratio
  
Line 37: Line 34:
  
 
* Current Transfer ratio curve
 
* Current Transfer ratio curve
 +
** 25mA sink/source capability per I/O
 +
*** Maximum current out of VSS pin = 150 mA
 +
*** Maximum current into VDD pin = 125 mA
  
 
[[File:4N28-CurrentTransferRatio-curve.PNG]]
 
[[File:4N28-CurrentTransferRatio-curve.PNG]]
Line 52: Line 52:
 
[[File:4N28-SwitchingTime.PNG]]
 
[[File:4N28-SwitchingTime.PNG]]
  
<pre>
+
* Opto Characteristics
Opto Characteristics
+
 
Current Transfer Ratio 10.00% min
+
{| class="wikitable"
Vcc 5 V 3.3 V
+
! Vcc
Vf(Diode) 1.25 V 1.25 V
+
! 5.000
Res series LED 330 Ohms 330 Ohms
+
! V
If (LED) 0.0113636364 A 0.0062121212 A
+
! 3.300
CTR 0.6 A/A 0.2 A/A
+
! V
Current Trans CE 0.0068181818 A 0.0012424242 A
+
|-
Res (load pullup) 4700 Ohms 4700 Ohms
+
| Vf LED
Vce 0.2 V 0.2 V
+
| 1.200
V load side 5 V 5 V
+
| V
Iload 0.0010212766 0.0010212766
+
| 1.200
</pre>
+
| V
 +
|-
 +
| Res ser
 +
| 330.000
 +
| Ohms
 +
| 330.000
 +
| Ohms
 +
|-
 +
| If LED
 +
| 11.515
 +
| mA
 +
| 6.364
 +
| mA
 +
|-
 +
| CTR (min)
 +
| 0.500
 +
| A/A
 +
| 0.500
 +
| A/A
 +
|-
 +
| Iout
 +
| 5.758
 +
| mA
 +
| 3.182
 +
| mA
 +
|-
 +
| All pins Low
 +
| 8
 +
|
 +
| 8
 +
|
 +
|-
 +
| I(Vss pin)
 +
| 92.121
 +
| mA
 +
| 50.909
 +
| mA
 +
|-
 +
| I Max (Vss)
 +
| 150.000
 +
|
 +
| 150.000
 +
|
 +
|-
 +
| Loading
 +
| 61.41%
 +
|
 +
| 33.94%
 +
|
 +
|-
 +
|}
 +
 
 +
== Output Stage ==
 +
 
 +
[[file:OptoOutputStage.PNG]]
  
 
== Connectors ==
 
== Connectors ==
Line 102: Line 156:
  
 
[[File:OptoOut8-I2C-J7-sch-X2.PNG]]
 
[[File:OptoOut8-I2C-J7-sch-X2.PNG]]
 
+
{| class="wikitable"
Pin Desc _ Pin Desc
+
! OptoOut
1 S7 14 V7
+
! OptoOut
2 G7 15 S6
+
! DB25RIB
3 V6 16 G6
+
! DIGIO32
4 S5 17 V5
+
! DB37RIB
5 G5 18 S4
+
!
6 V4 19 G4
+
! OptoOut
7 S3 20 V3
+
! OptoOut
8 G3 21 S2
+
! DB25RIB
9 V2 22 G2
+
! DIGIO32
10 S1 23 V1
+
! DB37RIB
11 G1 24 S0
+
|-
12 V0 25 G0
+
| Pin
13 N/C
+
| Descr
 +
| Pin_26
 +
| Descr
 +
| Pin_40
 +
|
 +
| Pin
 +
| Descr
 +
| Pin_26
 +
| Descr
 +
| Pin_40
 +
|-
 +
| 1
 +
| S7
 +
| 1
 +
| C1PA7
 +
| 18
 +
|
 +
| 14
 +
| V7
 +
| 2
 +
| C0PB7
 +
| 20
 +
|-
 +
| 2
 +
| G7
 +
| 3
 +
| C0PA7
 +
| 35
 +
|
 +
| 15
 +
| S6
 +
| 4
 +
| C1PA6
 +
| 16
 +
|-
 +
| 3
 +
| V6
 +
| 5
 +
| C0PB6
 +
| 22
 +
|
 +
| 16
 +
| G6
 +
| 6
 +
| C0PA6
 +
| 33
 +
|-
 +
| 4
 +
| S5
 +
| 7
 +
| C1PA5
 +
| 14
 +
|
 +
| 17
 +
| V5
 +
| 8
 +
| C0PB5
 +
| 24
 +
|-
 +
| 5
 +
| G5
 +
| 9
 +
| C0PA5
 +
| 31
 +
|
 +
| 18
 +
| S4
 +
| 10
 +
| C1PA4
 +
| 12
 +
|-
 +
| 6
 +
| V4
 +
| 11
 +
| C0PB4
 +
| 26
 +
|
 +
| 19
 +
| G4
 +
| 12
 +
| C0PA4
 +
| 29
 +
|-
 +
| 7
 +
| S3
 +
| 13
 +
| C1PA3
 +
| 10
 +
|
 +
| 20
 +
| V3
 +
| 14
 +
| C0PB3
 +
| 28
 +
|-
 +
| 8
 +
| G3
 +
| 15
 +
| C0PA3
 +
| 27
 +
|
 +
| 21
 +
| S2
 +
| 16
 +
| C1PA2
 +
| 8
 +
|-
 +
| 9
 +
| V2
 +
| 17
 +
| C0PB2
 +
| 30
 +
|
 +
| 22
 +
| G2
 +
| 18
 +
| C0PA2
 +
| 25
 +
|-
 +
| 10
 +
| S1
 +
| 19
 +
| C1PA1
 +
| 6
 +
|
 +
| 23
 +
| V1
 +
| 20
 +
| C0PB1
 +
| 32
 +
|-
 +
| 11
 +
| G1
 +
| 21
 +
| C0PA1
 +
| 23
 +
|
 +
| 24
 +
| S0
 +
| 22
 +
| C1PA0
 +
| 4
 +
|-
 +
| 12
 +
| V0
 +
| 23
 +
| C0PB0
 +
| 34
 +
|
 +
| 25
 +
| G0
 +
| 24
 +
| C0PA0
 +
| 21
 +
|-
 +
| 13
 +
| N/C
 +
| 25
 +
|
 +
|
 +
|
 +
|
 +
|
 +
| 26
 +
|
 +
|
 +
|-
 +
|}
  
 
== Design Validation/First Article Test ==
 
== Design Validation/First Article Test ==
Line 191: Line 412:
 
== Production Tests ==
 
== Production Tests ==
  
=== Test Station Set-up ===
+
=== Test Station Theory of Operations ===
  
* Uses ODAS Test Station V2
 
** (1) [[DB37RIBBON]] - Connects to DB-37 on [[DIGIO32-I2C]] Test Station
 
** (1) [[DB25RIBBON]] - Connects to DB-25 on UUT
 
** Ribbon cable set to connect 26 to 40 pin Dupont headers
 
 
* Test Station controls/read the Opto outputs via the DIGIO32 card in the Test Station
 
* Test Station controls/read the Opto outputs via the DIGIO32 card in the Test Station
 
* Puts out 8 bits on OptoOut8-I2C card
 
* Puts out 8 bits on OptoOut8-I2C card
 
* Reads the 8 bits on DIGIO32 card
 
* Reads the 8 bits on DIGIO32 card
 
* There are three lines per Channel that need to be connected:
 
* There are three lines per Channel that need to be connected:
* Ground (Gx), Power (Vx), Open Collector Output (Sx)
+
** Ground (Gx), Power (Vx), Open Collector Output (Sx)
* If the LED is not being driven, the Open Collector output will be pulled up
+
** If the LED is not being driven, the Open Collector output will be pulled up
* Wire Grounds to Digio32 channels 0-7
+
** Wire Grounds to Digio32 channels 0-7
* Wire Powers to Digio32 channels 8-15
+
** Wire Powers to Digio32 channels 8-15
* Wire Signals to Digio32 channels 16-23
+
** Wire Signals to Digio32 channels 16-23
 
* Resistors can be checked by setting the Power line high and checking the OC outputs
 
* Resistors can be checked by setting the Power line high and checking the OC outputs
* OptoOut card is stimulated by writing to its I2C interface
+
* OptoOut8-I2C card is stimulated by writing to its I2C interface
 
* Verifies that the Optos work
 
* Verifies that the Optos work
  
=== Test Steps ===
+
=== Test Station Set-up ===
  
 +
* Uses [[Arduino_Based_Test_Station|ODAS Test Station V2]]
 +
** [[DB37RIBBON]] - Connects to DB-37 on [[DIGIO32-I2C]] Test Station
 +
** [[DB25RIBBON]] - Connects to DB-25 on UUT
 +
** Ribbon cable set to connect 26 to 40 pin Dupont headers
 +
* Unit Under Test (UUT)
 
* Attach Host Computer USB to the Arduino NANO on the Test Station
 
* Attach Host Computer USB to the Arduino NANO on the Test Station
 
* Run puTTY on the Host Computer
 
* Run puTTY on the Host Computer
 
** 9600 baud
 
** 9600 baud
* Enter E to access EEPROM menu
+
 
* Enter W to select the card
+
=== EEPROM Programming ===
 +
 
 +
* First time the card is tested
 +
** Enter E to access EEPROM menu
 +
** Enter W to select the card
 
<pre>
 
<pre>
 
Select the board type
 
Select the board type
Line 243: Line 469:
 
Product=OptoOut8-I2C
 
Product=OptoOut8-I2C
 
</pre>
 
</pre>
 +
 +
* After the first time the UUT is accessed, the Configuration EEPROM will be set up
 +
* Verify EEPROM is set up
 +
** E
 +
** R
 +
** Return
 +
<pre>
 +
R=Read EEPROM, W=Write EEPROM, X=Exit Menu
 +
Reading EEPROM
 +
Family=ODAS
 +
Company=land-boards.com
 +
Product=OptoOut8-I2C
 +
eepromAccessMenu() - Finished reading EEPROM
 +
</pre>
 +
* Type X to exit EEPROM menu
 +
 +
=== Running card Test ===
 +
 
* Select Card Tests = "C"
 
* Select Card Tests = "C"
 
* Select Run Tests = "T"
 
* Select Run Tests = "T"
 
* Observe test results
 
* Observe test results
 +
 +
== Card Debugging ==
 +
 +
* Need to set power and ground to power the OptoCoupler outputs
 +
* Outputs via writing out the MCP23008 on the UUT
 +
* Read back on the DIGIO32-I2C card
 +
 +
=== Setup Power and Ground ===
 +
 +
* Drive Grounds to Digio32 channels 0-7 (dec)
 +
** I from top menu accesses the DIGIO32-I2C Internal to Test Station
 +
*** L command sets pins to low
 +
**** L 0x00 through L 0x07 sets the Ground pins to Low
 +
 +
<pre>
 +
C=Card Tests, D=Direct, E=EEPROM, I=access Internal DIGIO32
 +
Direct Access Test Station DIGIO32 Hardware
 +
H=Write High, L=Write Low, R=Read a bit, X=eXit
 +
Bit to clear Low  (HEX): 0x00
 +
Bit to clear Low  (HEX): 0x01
 +
Bit to clear Low  (HEX): 0x02
 +
Bit to clear Low  (HEX): 0x03
 +
Bit to clear Low  (HEX): 0x04
 +
Bit to clear Low  (HEX): 0x05
 +
Bit to clear Low  (HEX): 0x06
 +
Bit to clear Low  (HEX): 0x07
 +
</pre>
 +
 +
* Drive Powers to Digio32 channels 8-15 (dec)
 +
** I from top menu accesses the DIGIO32-I2C Internal to Test Station
 +
*** H command sets pins to low
 +
**** H 0x08 through H 0x0F sets the Ground pins to Low
 +
 +
<pre>
 +
Bit to set High (HEX): 0x08
 +
Bit to set High (HEX): 0x09
 +
Bit to set High (HEX): 0x0a
 +
Bit to set High (HEX): 0x0b
 +
Bit to set High (HEX): 0x0c
 +
Bit to set High (HEX): 0x0d
 +
Bit to set High (HEX): 0x0e
 +
Bit to set High (HEX): 0x0f
 +
</pre>
 +
 +
=== Write through UUT, Read via Internal DIGIO32-I2C ===
 +
 +
* Wire Signals to Digio32 channels 16-23
 +
** D command accesses the UUT
 +
*** H or L 0x00 through H or L ox07 sets the pins high or low
 +
* Measure signal at pullup resistor on output
 +
** Signal should toggle
 +
** X to exit menu
 +
 +
<pre>
 +
Bit to clear Low  (HEX): 0x00
 +
Bit to set High (HEX): 0x00
 +
</pre>
 +
 +
* I from top menu accesses the DIGIO32-I2C
 +
** R 0x10 through 0x17 reads the output back
  
 
== Drivers ==
 
== Drivers ==

Revision as of 10:41, 29 September 2022

Tindie-mediums.png

OptoOut8-I2C-X3-CCA-5452-640px.jpg

Features

  • Eight optically-isolated output channels on card
    • (8) 4N25 optoisolators
  • MCP23008 I2C Parallel I/O
    • I2C (Two Wire interface)
    • 100/400 KHZ operation
    • Jumper selectable 2.2K Ohm terminators
    • 3-bit address (Jumper selectable) - Up to 8 boards
    • Single 4-pin host interface connector (Ground, Power, Clock, Data)
  • 24LC024 ODAS Personality EEPROM
    • pid = 5
    • Write protect jumper
  • 5V operation
  • Compatible with Arduino, Raspberry Pi, BeagleBone Black
  • DB-25F connector for rugged applications
  • 95x95mm form factor
  • (4) 6-32 mounting holes - one on each corner

MCP23008 Block Diagram

MCP23008-Blk-Dia.PNG

Optocoupler Performance

4N28-DC-TransferRatio.PNG

  • Current Transfer ratio curve
    • 25mA sink/source capability per I/O
      • Maximum current out of VSS pin = 150 mA
      • Maximum current into VDD pin = 125 mA

4N28-CurrentTransferRatio-curve.PNG

  • LED Current vs voltage

4N28-LED-IvsV.PNG

  • Output transistor capacitance

4N28-OutputCapacitance.PNG

  • Switching Time

4N28-SwitchingTime.PNG

  • Opto Characteristics
Vcc 5.000 V 3.300 V
Vf LED 1.200 V 1.200 V
Res ser 330.000 Ohms 330.000 Ohms
If LED 11.515 mA 6.364 mA
CTR (min) 0.500 A/A 0.500 A/A
Iout 5.758 mA 3.182 mA
All pins Low 8 8
I(Vss pin) 92.121 mA 50.909 mA
I Max (Vss) 150.000 150.000
Loading 61.41% 33.94%

Output Stage

OptoOutputStage.PNG

Connectors

J1 - Power

OptoOut8-I2C-J1-Power-X2.PNG

J2-J3 - I2C

OptoOut8-I2C-J2-I2C-X2.PNG

J4 - I2C Address Select Jumpers

OptoOut8-I2C-J4-AdrSel-X2.PNG

J5 - I2C Termination Jumpers

OptoOut8-I2C-J5-I2C-Terms-X2.PNG

J6 - Card Present/Interrupt

OptoOut8-I2C-J6-Int-Terms-X2.PNG

  1. GND
  2. INT
  3. CP - Card present (pulled low)

J7 - I/O connector

OptoOut8-I2C-X3-CCA-5457-640px.jpg

DB-25 Female

OptoOut8-db25 f.gif

OptoOut8-I2C-J7-sch-X2.PNG

OptoOut OptoOut DB25RIB DIGIO32 DB37RIB OptoOut OptoOut DB25RIB DIGIO32 DB37RIB
Pin Descr Pin_26 Descr Pin_40 Pin Descr Pin_26 Descr Pin_40
1 S7 1 C1PA7 18 14 V7 2 C0PB7 20
2 G7 3 C0PA7 35 15 S6 4 C1PA6 16
3 V6 5 C0PB6 22 16 G6 6 C0PA6 33
4 S5 7 C1PA5 14 17 V5 8 C0PB5 24
5 G5 9 C0PA5 31 18 S4 10 C1PA4 12
6 V4 11 C0PB4 26 19 G4 12 C0PA4 29
7 S3 13 C1PA3 10 20 V3 14 C0PB3 28
8 G3 15 C0PA3 27 21 S2 16 C1PA2 8
9 V2 17 C0PB2 30 22 G2 18 C0PA2 25
10 S1 19 C1PA1 6 23 V1 20 C0PB1 32
11 G1 21 C0PA1 23 24 S0 22 C1PA0 4
12 V0 23 C0PB0 34 25 G0 24 C0PA0 21
13 N/C 25 26

Design Validation/First Article Test

  • Test Code
Pass Count = 17977, Fail Count = 0
  • Runs ODAS Card Test Software on Arduino Nano
  • Loopback cables
    • Cable connects to DB-25 and NANO-BKOUT pins
  • USB running puTTY
    • 9600 baud
  • Menu driven
  • Auto-detect card if test has been run before
Checking EEPROM for board type...Detected OptoIn8-I2C board
R=Read EEPROM, W=Write EEPROM, T=Test DIGIOs, L=Loop Test, B=Bounce LEDs
  • Presents card type list for un-programmed EEPROMs
Checking EEPROM for board type...Company Mismatch
Select the board type
1 - DIGIO16-I2C board
2 - DIGIO-128 board
3 - OptoIn8-I2C board
4 - OptoOut8-I2C board
5 - DIGIO32-I2C board
6 - PROTO16-I2C board
7 - ODAS-PSOC5 board
8 - TBD board
9 - TBD board
Select board > 
  • Select board
Select board > 3
Writing EEPROM
Initializing eep buffer
len of buffer=96
reading block
Family=ODAS
Company=land.boards.com
  • Test 'T'
  • Fail (no cable)
OptoIn8-I2C failed HIGH on bit 1
Read back on  1
OptoIn8-I2C failed HIGH on bit 2
Read back on  2
OptoIn8-I2C failed HIGH on bit 4
Read back on  4
OptoIn8-I2C failed HIGH on bit 8
Read back on  8
OptoIn8-I2C failed HIGH on bit 16
Read back on  16
OptoIn8-I2C failed HIGH on bit 32
Read back on  32
OptoIn8-I2C failed HIGH on bit 64
Read back on  64
OptoIn8-I2C failed HIGH on bit 128
Read back on  128
Loopback Test PASS = 0, FAIL = 1
  • Pass Checking EEPROM for board type...Detected OptoIn8-I2C board
R=Read EEPROM, W=Write EEPROM, T=Test DIGIOs, L=Loop Test, B=Bounce LEDs
Loopback Test PASS = 1, FAIL = 0

Production Tests

Test Station Theory of Operations

  • Test Station controls/read the Opto outputs via the DIGIO32 card in the Test Station
  • Puts out 8 bits on OptoOut8-I2C card
  • Reads the 8 bits on DIGIO32 card
  • There are three lines per Channel that need to be connected:
    • Ground (Gx), Power (Vx), Open Collector Output (Sx)
    • If the LED is not being driven, the Open Collector output will be pulled up
    • Wire Grounds to Digio32 channels 0-7
    • Wire Powers to Digio32 channels 8-15
    • Wire Signals to Digio32 channels 16-23
  • Resistors can be checked by setting the Power line high and checking the OC outputs
  • OptoOut8-I2C card is stimulated by writing to its I2C interface
  • Verifies that the Optos work

Test Station Set-up

  • Uses ODAS Test Station V2
  • Unit Under Test (UUT)
  • Attach Host Computer USB to the Arduino NANO on the Test Station
  • Run puTTY on the Host Computer
    • 9600 baud

EEPROM Programming

  • First time the card is tested
    • Enter E to access EEPROM menu
    • Enter W to select the card
Select the board type
1 - DIGIO16-I2C board
2 - DIGIO-128 board
3 - OptoIn8-I2C board
4 - OptoOut8-I2C board  <<< Select 4
5 - DIGIO32-I2C board
6 - PROTO16-I2C board
7 - ODAS-PSOC5 board
8 - ODAS-RELAY16 board
A - DIGIO-128/64 board
9 - TBD board
X - Boards without EEPROMs
Select board > 
  • Enter 4
  • Should see
Writing EEPROM
Initializing eep buffer
len of buffer=96
reading block
Family=ODAS
Company=land-boards.com
Product=OptoOut8-I2C
  • After the first time the UUT is accessed, the Configuration EEPROM will be set up
  • Verify EEPROM is set up
    • E
    • R
    • Return
R=Read EEPROM, W=Write EEPROM, X=Exit Menu
Reading EEPROM
Family=ODAS
Company=land-boards.com
Product=OptoOut8-I2C
eepromAccessMenu() - Finished reading EEPROM
  • Type X to exit EEPROM menu

Running card Test

  • Select Card Tests = "C"
  • Select Run Tests = "T"
  • Observe test results

Card Debugging

  • Need to set power and ground to power the OptoCoupler outputs
  • Outputs via writing out the MCP23008 on the UUT
  • Read back on the DIGIO32-I2C card

Setup Power and Ground

  • Drive Grounds to Digio32 channels 0-7 (dec)
    • I from top menu accesses the DIGIO32-I2C Internal to Test Station
      • L command sets pins to low
        • L 0x00 through L 0x07 sets the Ground pins to Low
C=Card Tests, D=Direct, E=EEPROM, I=access Internal DIGIO32
Direct Access Test Station DIGIO32 Hardware
H=Write High, L=Write Low, R=Read a bit, X=eXit
Bit to clear Low  (HEX): 0x00
Bit to clear Low  (HEX): 0x01
Bit to clear Low  (HEX): 0x02
Bit to clear Low  (HEX): 0x03
Bit to clear Low  (HEX): 0x04
Bit to clear Low  (HEX): 0x05
Bit to clear Low  (HEX): 0x06
Bit to clear Low  (HEX): 0x07
  • Drive Powers to Digio32 channels 8-15 (dec)
    • I from top menu accesses the DIGIO32-I2C Internal to Test Station
      • H command sets pins to low
        • H 0x08 through H 0x0F sets the Ground pins to Low
Bit to set High (HEX): 0x08
Bit to set High (HEX): 0x09
Bit to set High (HEX): 0x0a
Bit to set High (HEX): 0x0b
Bit to set High (HEX): 0x0c
Bit to set High (HEX): 0x0d
Bit to set High (HEX): 0x0e
Bit to set High (HEX): 0x0f

Write through UUT, Read via Internal DIGIO32-I2C

  • Wire Signals to Digio32 channels 16-23
    • D command accesses the UUT
      • H or L 0x00 through H or L ox07 sets the pins high or low
  • Measure signal at pullup resistor on output
    • Signal should toggle
    • X to exit menu
Bit to clear Low  (HEX): 0x00
Bit to set High (HEX): 0x00
  • I from top menu accesses the DIGIO32-I2C
    • R 0x10 through 0x17 reads the output back

Drivers

Revision History

Revision X4

  • Move DB-25 mounting hole to center of pins

Revision X3

  • Move DB-25 left

Revision X2

  • Added I2C terminators and jumpers
  • Added Write enable jumper

Layout Rev x2

OptoOut8-I2C-layout-X2.PNG

Revision X1

  • J5 pin 1 indicator needs to be moved

File:OPTO8-OUT-I2C REV X1

Assembly Sheet

OPTO8-OUT-I2C REV X2 Assembly Sheet