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lpi2c_polling_b2b_transfer_slave

lpi2c_polling_b2b_transfer_slave#

Overview#

The lpi2c_polling_b2b_transfer_slave example shows how to use lpi2c driver as slave to do board to board transfer with a polling master:

In this example, one lpi2c instance as slave and another lpi2c instance on the other board as master. Master sends a piece of data to slave, and receive a piece of data from slave. This example checks if the data received from slave is correct.

Supported Boards#

MC56F80000-EVK
Hardware requirements

  • Micro USB cable

  • MC56F80000-EVK board

  • Personal Computer

Board hardware common setting

  1. Power setting:

    Connect J8 pin2 and pin3 Connect J6 pin1 and pin2 Connect J5 pin1 and pin2

  2. Reset pin setting:

    Connect J11 pin2 and pin3

  3. Debugger setting:

    Connect J13 pin 1-2, 3-4, 5-6, 7-8

Board settings

MASTER_BOARD connects to SLAVE_BOARD as below:

MASTER_BOARD        CONNECTS TO         SLAVE_BOARD
Pin Name   Board Location     Pin Name   Board Location
I2C0_SCL   J2-20              I2C0_SCL   J2-20
I2C0_SDA   J2-18              I2C0_SDA   J2-18
GND        J2-14              GND        J2-14
Prepare the Demo

  1. Connect USB cable between the host PC and the J12 USB port on the target board. It setups Multilink and COM port in PC device manager.

  2. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board with Multilink debug configuration.

  4. Launch the debugger in your IDE to begin running the demo.

Running the demo

When the example runs successfully, you can see the similar information from the terminal as below.

LPI2C board2board polling example -- Slave transfer.

Slave received data :
0x 0  0x 1  0x 2  0x 3  0x 4  0x 5  0x 6  0x 7
0x 8  0x 9  0x a  0x b  0x c  0x d  0x e  0x f
0x10  0x11  0x12  0x13  0x14  0x15  0x16  0x17
0x18  0x19  0x1a  0x1b  0x1c  0x1d  0x1e  0x1f


End of LPI2C example .
MC56F81000-EVK
Hardware requirements

  • 2 x Micro USB cable

  • MC56F81000-EVK board

  • Personal Computer

Board hardware common setting

  1. Power setting:

    Connect J8 pin2 and pin3 Connect J5 pin1 and pin2 Connect J6 pin1 and pin2

  2. Onboard PnE U-MultiLink debugger setting:

    Connet J11 pin2 and pin3 Connect J13 pin 1-2, 3-4, 5-6, 7-8, to setup onboard debugger PnE U-MultiLink. Note: when use external debugger(connected to J10), leave all J13 pins open.

Board settings

MASTER_BOARD connects to SLAVE_BOARD as below:

MASTER_BOARD        CONNECTS TO         SLAVE_BOARD
Pin Name   Board Location     Pin Name   Board Location
I2C0_SCL   J2-20              I2C0_SCL   J2-20
I2C0_SDA   J2-18              I2C0_SDA   J2-18
GND        J2-14              GND        J2-14
Prepare the Demo

  1. Connect USB cable between the host PC and the USB(J26) port on the target board to setup USB to UART bridge.

  2. Connect USB cable between the host PC and the USB(J12) port on the target baord to setup mulitlink debugger.

  3. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board with PnE U-MultiLink debug configuration.

  5. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo. Please be noted default FCF(flash configuration field) makes the MCU boot from flash.

Running the demo

When the example runs successfully, you can see the similar information from the terminal as below.

LPI2C board2board polling example -- Slave transfer.

Slave received data :
0x 0  0x 1  0x 2  0x 3  0x 4  0x 5  0x 6  0x 7
0x 8  0x 9  0x a  0x b  0x c  0x d  0x e  0x f
0x10  0x11  0x12  0x13  0x14  0x15  0x16  0x17
0x18  0x19  0x1a  0x1b  0x1c  0x1d  0x1e  0x1f


End of LPI2C example .
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