【征文活动】Working GPIO input interrupt demo for FRDM-K22F with Keniti...

bailao99

Working GPIO input interrupt demo for FRDM-K22F with Kenitis SDK V1.1.0

The following (after the "- - - - - -") is debugged code for showing SW2, and SW3 pressed  or not on the FRDM-K22F module. It is based on Kenitis SDK V1.1.0. It is built with Keil V5.13 and downloaded with JLINK SWD mode.

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#include <string.h>
#include <stdio.h>
#include "fsl_uart_hal.h"
#include "gpio_pins.h"
#include "fsl_clock_manager.h"
#include "fsl_port_hal.h"
#include "board.h"

volatile uint8_t switch_2_isr_entered = 0; // Variable to indicate that the SW2
volatile uint8_t switch_3_isr_entered = 0; // Variable to indicate that the SW3

gpio_input_pin_user_config_t Sw2Pins =
{
  .pinName = kGpioSW1,
  .config.isPullEnable = false,
  .config.pullSelect = kPortPullUp,
  .config.isPassiveFilterEnabled = false,
  .config.interrupt = kPortIntFallingEdge,
};

gpio_input_pin_user_config_t Sw3Pins =
{
  .pinName = kGpioSW2,
  .config.isPullEnable = false,
  .config.pullSelect = kPortPullUp,
  .config.isPassiveFilterEnabled = false,
  .config.interrupt = kPortIntFallingEdge,
};

int main(void)
{
  // init the hardware board
  hardware_init();
  // init the debug uart
  dbg_uart_init();
   
  /* PB17(Sw3Pin),PC1(Sw2Pin) as GPIO */
  PORT_HAL_SetMuxMode(PORTB_BASE,17u,kPortMuxAsGpio);
  PORT_HAL_SetMuxMode(PORTC_BASE,0u,kPortMuxAsGpio);

  // Initialize the GPIO pins  
  GPIO_DRV_InputPinInit(&Sw2Pins);
  GPIO_DRV_InputPinInit(&Sw3Pins);

  printf("\nHello World!\n");
   
  for (;;)
  {
    if(1==switch_2_isr_entered)
    {
      switch_2_isr_entered = 0;
      printf("\nSW2 Pressed!\n");         
    }
    if(1==switch_3_isr_entered)
    {
      switch_3_isr_entered = 0;
      printf("\nSW3 Pressed!\n");         
    }
  }  
  return 0;
}

Prepare the Demo
1. Connect a USB cable between the PC host and the OpenSDA USB port on FRDM-K22F.
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 FRDM-K22F board.
4. Either press the reset button on FRDM-K22F to begin running the demo.
5. Press SW2 switch or SW3 switch to check the result.
Here is output.



Attention: My KSDK V1.1.0 path is D:\KSDK_1.1.0. If your KSDK V1.1.0 path is not agree with me, the demo will not work  until the configuation in project options->C/C++->Include path,Linker->Scatter File, Linker->Misc controls is correct.

ccrt

兄弟够狠，这是英语作文么？

bailao99

ccrt 发表于 2015-3-17 08:51
兄弟够狠，这是英语作文么？

玩玩而已。Kenitis很难玩，芯片功能强大而复杂，驱动程序五花八门，连个FRDM的开关输入中断例程都没有。昨晚照着QSP Demo折腾了两小时都没搞定。后来灵机一动，参照LedPin的方式，总算弄出来了。今天早上睡不着，就照社区的例子做了一个demo。英文丢了多年，看起来惨不忍睹，惭愧惭愧！

eva

英文征文大赛

jinyi7016

这也可以的啊！？

FSL_TICS_ZP

bailao99 发表于 2015-3-17 09:15
玩玩而已。Kenitis很难玩，芯片功能强大而复杂，驱动程序五花八门，连个FRDM的开关输入中断例程都没有。 ...

有戏，有戏！！！

jiang887786

看到这些我是没发混了，猴不住了！一直都还没上手这个32位机！看来还得拼拼命才行！

holts2

bailao99 发表于 2015-3-17 09:15
玩玩而已。Kenitis很难玩，芯片功能强大而复杂，驱动程序五花八门，连个FRDM的开关输入中断例程都没有。 ...

同感，KDS难玩，Kenitis还不错

FSL_TICS_ZP

非常感谢你关于Kinetis的经验分享 ！