69 lines
2.4 KiB
Plaintext
69 lines
2.4 KiB
Plaintext
Overview
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========
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CMSIS-Driver defines generic peripheral driver interfaces for middleware making it reusable across a wide
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range of supported microcontroller devices. The API connects microcontroller peripherals with middleware
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that implements for example communication stacks, file systems, or graphic user interfaces.
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More information and usage method please refer to http://www.keil.com/pack/doc/cmsis/Driver/html/index.html.
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The i2c_interrupt_b2b_transfer_master example shows how to use CMSIS i2c driver as master to do board to board transfer
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with interrupt:
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In this example, one i2c instance as master and another i2c instance on the other board as slave. Master sends a
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piece of data to slave, and receive a piece of data from slave. This example checks if the data received from
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slave is correct.
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Toolchain supported
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===================
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- IAR embedded Workbench 9.20.2
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- Keil MDK 5.36
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- GCC ARM Embedded 10.3.1
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- MCUXpresso 11.5.0
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Hardware requirements
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=====================
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- Micro USB cable
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- Two LPCXpresso55s69 boards
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- Personal Computer
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Board settings
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==============
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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MASTER_BOARD CONNECTS TO SLAVE_BOARD
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Pin Name Board Location Pin Name Board Location
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I2C_SCL P17-1 I2C_SCL P17-1
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I2C_SDA P17-3 I2C_SDA P17-3
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GND P17-7 GND P17-7
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Prepare the Demo
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================
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Note: MCUXpresso IDE project default debug console is semihost
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1. Connect a micro USB cable between the PC host and the LPC-Link USB port (P6) on the board.
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2. Open a serial terminal on PC for JLink serial device with these settings:
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- 115200 baud rate
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- 8 data bits
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- No parity
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- One stop bit
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- No flow control
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3. Download the program to the target board.
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4. Either press the reset button on your board or launch the debugger in your IDE to begin running
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the demo.
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Running the demo
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================
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The following message shows in the terminal if the example runs successfully.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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CMSIS I2C board2board interrupt example -- Slave transfer.
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Slave received data :
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0x 0 0x 1 0x 2 0x 3 0x 4 0x 5 0x 6 0x 7
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0x 8 0x 9 0x a 0x b 0x c 0x d 0x e 0x f
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0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17
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0x18 0x19 0x1a 0x1b 0x1c 0x1d 0x1e 0x1f
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End of I2C example .
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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