56 lines
1.8 KiB
Plaintext
56 lines
1.8 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 cmsis_uart_interrupt_transfer example shows how to use uart cmsis driver in interrupt way:
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In this example, one uart instance connect to PC through uart, the board will
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send back all characters that PC send to the board.
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Note: The example echo every 8 characters, so input 8 characters every time.
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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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- Mini USB cable
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- LPCXpresso55s69 board
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- Personal Computer
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Board settings
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==============
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No special is needed.
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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 mini USB cable between the PC host and the OpenSDA USB port on the board.
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2. Open a serial terminal on PC for OpenSDA 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. Reset the SoC and run the project.
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Running the demo
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================
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When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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USART CMSIS interrupt example
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Board receives 8 characters then sends them out
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Now please input:
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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When you input 8 characters, system will echo it by USART and them would be seen on the OpenSDA terminal.
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