Difference between pages "File:DIGIO-8 P1821 720PX.jpg" and "I2CIO-8X"
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+ | [[File:tindie-mediums.png|link=https://www.tindie.com/products/land_boards/i2c-8-bit-io-mcp23008-i2cio-8x/]] | ||
+ | [[File:I2CIO-8X-6104-720px.jpg]] | ||
+ | |||
+ | <video type="youtube">omUSJpGLv4A</video> | ||
+ | |||
+ | == Features == | ||
+ | |||
+ | * 8 bits of Digital I/O | ||
+ | * I2C interface | ||
+ | * MCP23008P | ||
+ | * Base address = 0x20 | ||
+ | * Address offset jumpers (0-7) | ||
+ | * Interrupt pin on I2C connectors | ||
+ | * I2C Daisy-chain connectors | ||
+ | * GVS (Ground/Voltage/Signal) pins for all 8-bits | ||
+ | * 2.7V to 5.5V | ||
+ | * 49x49mm form factor | ||
+ | * (4) #4-40 mounting holes | ||
+ | |||
+ | == Headers/Jumpers == | ||
+ | |||
+ | === J1, J2 - I2C Connectors === | ||
+ | |||
+ | * Daisy-chain connectors | ||
+ | * Can ignore second connector | ||
+ | * Pinout | ||
+ | |||
+ | # GND | ||
+ | # Power (3.3V or 5V) | ||
+ | # SDA | ||
+ | # SCL | ||
+ | # Interrupt (Out) | ||
+ | |||
+ | === H8, H9 - I2C Terminators === | ||
+ | |||
+ | * Install to terminate SDA/SCL with 2.2K terminator | ||
+ | |||
+ | === A0-A2 - I2C Address Offset === | ||
+ | |||
+ | * Install all three for address = 0x20 | ||
+ | |||
+ | == Factory Acceptance Test == | ||
+ | |||
+ | [[FILE:I2CIO-8X_P1823-720PX.jpg] | ||
+ | |||
+ | === Test Station Theory of Operations === | ||
+ | |||
+ | * Test Station controls the I2C interface on the UUT | ||
+ | * Three tests | ||
+ | ** Internal Test | ||
+ | ** External Loopback Test | ||
+ | ** Bounce an LED Test | ||
+ | |||
+ | === Test Station Set-up === | ||
+ | |||
+ | * Uses [[Arduino_Based_Test_Station|ODAS Test Station V2]] | ||
+ | * Ribbon cable sets | ||
+ | ** Loopback cable Connector | ||
+ | ** [[LED-32]] cable | ||
+ | * Unit Under Test (UUT) | ||
+ | * Attach Host Computer USB to the Arduino NANO on the Test Station | ||
+ | * Run puTTY on the Host Computer | ||
+ | ** 9600 baud | ||
+ | |||
+ | === Card Selection === | ||
+ | * puTTY will display the menu | ||
+ | <pre> | ||
+ | Checking if EEPROM is present on UUT...EEPROM is not present on UUT | ||
+ | Count of I2C devices in range 0x20-0x27 on UUT = 1 | ||
+ | Detected MCP23008 | ||
+ | Select the board type (Other) | ||
+ | 1 - I2CIO8 board | ||
+ | 2 - I2CIO8X board | ||
+ | Select board > | ||
+ | </pre> | ||
+ | |||
+ | * Select 2 | ||
+ | |||
+ | <pre> | ||
+ | Init I2CIO-8X card | ||
+ | C=Card Tests, D=Direct, E=EEPROM, I=access Internal DIGIO32 | ||
+ | </pre> | ||
+ | |||
+ | === Running Loopback Card Test === | ||
+ | |||
+ | * Use loopback cable | ||
+ | * Select Card Tests = "C" | ||
+ | * Select Run Tests = "T" | ||
+ | * Observe test results | ||
+ | <pre> | ||
+ | L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu | ||
+ | Testing UUT = I2CIO-8X | ||
+ | Test PASS = 1, FAIL = 0 | ||
+ | </pre> | ||
+ | * Hit ENTER to display menu | ||
+ | <pre> | ||
+ | L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu | ||
+ | </pre> | ||
+ | |||
+ | === Running Internal Tests === | ||
+ | |||
+ | * Remove loopback cable | ||
+ | * Select Card Tests = "C" | ||
+ | * Select Run Tests = "I" | ||
+ | * Observe test results | ||
+ | <pre> | ||
+ | L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Tests, X=eXit sub-menu | ||
+ | UUT Internal card tests | ||
+ | Test PASS = 2, FAIL = 0 | ||
+ | </pre> | ||
+ | * Hit ENTER to display menu | ||
+ | <pre> | ||
+ | L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu | ||
+ | </pre> | ||
+ | |||
+ | === Running Blink LED Test === | ||
+ | |||
+ | * Attach [[LED-32]] cable | ||
+ | * Select Card Tests = "C" | ||
+ | * Select Run Tests = "B" | ||
+ | * Observe LEDs scanning on [[LED-32]] | ||
+ | <pre> | ||
+ | L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu | ||
+ | Bounce a bit across outputs | ||
+ | Bouncing LEDs I2CIO8X - any key to stop | ||
+ | </pre> | ||
+ | * Hit ENTER to display the menu | ||
+ | <pre> | ||
+ | Finished bouncing LEDs | ||
+ | </pre> | ||
+ | |||
+ | === Reference === | ||
+ | |||
+ | * [[Arduino Based Test Station]] | ||
+ | * [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/ODAS/ODASTESTER ODAS Tester Github Repo] | ||
+ | |||
+ | == Drivers/Example Code == | ||
+ | |||
+ | * [https://github.com/land-boards/lb-Arduino-Code/tree/master/libraries/LandBoards_I2CIO8X Github repo] - Driver code | ||
+ | * [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/I2CIO8X Github repo] - Example code | ||
+ | |||
+ | == Assembly Sheet == | ||
+ | |||
+ | * [[I2CIO8-X Assembly Sheet]] |
Revision as of 00:25, 26 March 2022
Contents
Features
- 8 bits of Digital I/O
- I2C interface
- MCP23008P
- Base address = 0x20
- Address offset jumpers (0-7)
- Interrupt pin on I2C connectors
- I2C Daisy-chain connectors
- GVS (Ground/Voltage/Signal) pins for all 8-bits
- 2.7V to 5.5V
- 49x49mm form factor
- (4) #4-40 mounting holes
Headers/Jumpers
J1, J2 - I2C Connectors
- Daisy-chain connectors
- Can ignore second connector
- Pinout
- GND
- Power (3.3V or 5V)
- SDA
- SCL
- Interrupt (Out)
H8, H9 - I2C Terminators
- Install to terminate SDA/SCL with 2.2K terminator
A0-A2 - I2C Address Offset
- Install all three for address = 0x20
Factory Acceptance Test
[[FILE:I2CIO-8X_P1823-720PX.jpg]
Test Station Theory of Operations
- Test Station controls the I2C interface on the UUT
- Three tests
- Internal Test
- External Loopback Test
- Bounce an LED Test
Test Station Set-up
- Uses ODAS Test Station V2
- Ribbon cable sets
- Loopback cable Connector
- LED-32 cable
- Unit Under Test (UUT)
- Attach Host Computer USB to the Arduino NANO on the Test Station
- Run puTTY on the Host Computer
- 9600 baud
Card Selection
- puTTY will display the menu
Checking if EEPROM is present on UUT...EEPROM is not present on UUT Count of I2C devices in range 0x20-0x27 on UUT = 1 Detected MCP23008 Select the board type (Other) 1 - I2CIO8 board 2 - I2CIO8X board Select board >
- Select 2
Init I2CIO-8X card C=Card Tests, D=Direct, E=EEPROM, I=access Internal DIGIO32
Running Loopback Card Test
- Use loopback cable
- Select Card Tests = "C"
- Select Run Tests = "T"
- Observe test results
L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu Testing UUT = I2CIO-8X Test PASS = 1, FAIL = 0
- Hit ENTER to display menu
L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu
Running Internal Tests
- Remove loopback cable
- Select Card Tests = "C"
- Select Run Tests = "I"
- Observe test results
L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Tests, X=eXit sub-menu UUT Internal card tests Test PASS = 2, FAIL = 0
- Hit ENTER to display menu
L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu
Running Blink LED Test
L=Loop/S=Single, T=Test, B=Bounce LEDs, I=UUT Int'l Test, X=eXit sub-menu Bounce a bit across outputs Bouncing LEDs I2CIO8X - any key to stop
- Hit ENTER to display the menu
Finished bouncing LEDs
Reference
Drivers/Example Code
- Github repo - Driver code
- Github repo - Example code
Assembly Sheet
File history
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current | 00:21, 26 March 2022 | 720 × 404 (128 KB) | Blwikiadmin (talk | contribs) |
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