Overview
========
The PIT project is a simple demonstration program of the SDK PIT driver. It sets up the PIT
hardware block to trigger a periodic interrupt after every 1 second. When the PIT interrupt is triggered
a message a printed on the UART terminal and an LED is toggled on the board.
Toolchain supported
===================
- IAR embedded Workbench 9.30.1
- Keil MDK 5.37
- GCC ARM Embedded 10.3.1
- MCUXpresso 11.6.0
Hardware requirements
=====================
- Mini/micro USB cable
- EVK-MIMXRT1020 board
- Personal Computer
Board settings
==============
No special settings are required.
Prepare the Demo
================
1. Connect a USB cable between the PC host and the OpenSDA USB port on the board.
2. Open a serial terminal with these settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
3. Download the program to the target board.
4. Either press the reset button on your board or launch the debugger in your IDE to begin running the example.
Running the demo
================
These instructions are displayed/shown on the terminal window:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Starting channel No.0 ...
Channel No.0 interrupt is occurred !
Channel No.0 interrupt is occurred !
Channel No.0 interrupt is occurred !
....................
....................
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
And you will find the user LED is taking turns to shine.
Note:
To debug in qspiflash, following steps are needed:
1. Select the flash target and compile.
2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
3. Start debugging in IDE.
- Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.
imi415
d983b267f0
