63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
Overview
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========
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This document explains the freertos_event example. It shows how task waits for an event (defined set
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of bits in event group). This event can be set by any other process or interrupt in the system.
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The example application creates three tasks. Two write tasks write_task_1 and write_task_2
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continuously setting event bit 0 and bit 1.
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Read_task is waiting for any event bit and printing actual state on console. Event bits are
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automatically cleared after read task is entered.
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Three possible states can occurre:
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Both bits are set.z
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Bit B0 is set.
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Bit B1 is set.
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Toolchain supported
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===================
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- IAR embedded Workbench 9.30.1
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- Keil MDK 5.37
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- GCC ARM Embedded 10.3.1
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- MCUXpresso 11.6.0
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Hardware requirements
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=====================
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- Mini/micro USB cable
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- EVK-MIMXRT1020 board
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- Personal Computer
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Board settings
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==============
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No special settings are required.
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Prepare the Demo
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================
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1. Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
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2. Open a serial terminal with the following 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 the demo.
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Note:
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To debug in qspiflash, following steps are needed:
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1. Select the flash target and compile.
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2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
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3. Start debugging in IDE.
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- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
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Running the demo
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================
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After the board is flashed the Tera Term will start printing the state of event bits.
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Example output:
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Bit B1 is set.
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Bit B0 is set.
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Bit B1 is set.
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Bit B0 is set.
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Bit B1 is set
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