Difference between revisions of "I2C-RPT"

Revision as of 23:06, 31 March 2022

I2C Hub / Repeater / Replicator / Multiplexer / De-multiplexer
Four I2C Ports
Host port Controlled via I2C
PCA9544A IC Multiple vendors
3.3V or 5V host operation
3.3V or 5V slave ports operation
Voltage translation between the ports
Example: A Raspberry PI which runs 3.3V can control an I2C device which runs at 5V
Interrupt line on each channel and host
100KHz/400KHz operation
On-board termination resistors
49x49mm form factor
4 solid 4-40 mounting holes
Arduino driver and example code
Raspberry Pi example code

Unit Under Test (UUT)
Arduino Based Test Station
Connects directly to I2C port (J7) on the BLACK-PILL-HUB
- I2C address offset = 0x0
- Built in I2C mux on BLACK-PILL-HUB is set to offset=0x1 so it does not conflict
- Uses 4x of I2CIO-8 cards

@@ Line 36: / Line 36: @@
 === Test Station Hardware ===
+* Unit Under Test (UUT)
 * [[Arduino Based Test Station]]
 * Connects directly to I2C port (J7) on the [[BLACK-PILL-HUB]]
@@ Line 41: / Line 42: @@
 ** Built in I2C mux on [[BLACK-PILL-HUB]] is set to offset=0x1 so it does not conflict
 ** Uses 4x of [[I2CIO-8]] cards
+[[File:I2C_RPT_Test_I6075_720px.jpg]]
+== Test Station Software ===
 * [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/ODAS/ODASTESTER ODAS Tester Github Repo]
-[[File:I2C_RPT_Test_I6075_720px.jpg]]
+=== Test Procedure ===
+* Connect I2C
 == Assembly Sheet ==
 * [[I2C-RPT-01 Assembly Sheet]]