/*******************************************************************************
MPLAB Harmony Application Source File
Company:
Microchip Technology Inc.
File Name:
app.c
Summary:
This file contains the source code for the MPLAB Harmony application.
Description:
This file contains the source code for the MPLAB Harmony application. It
implements the logic of the application's state machine and it may call
API routines of other MPLAB Harmony modules in the system, such as drivers,
system services, and middleware. However, it does not call any of the
system interfaces (such as the "Initialize" and "Tasks" functions) of any of
the modules in the system or make any assumptions about when those functions
are called. That is the responsibility of the configuration-specific system
files.
*******************************************************************************/
// DOM-IGNORE-BEGIN
/*******************************************************************************
Copyright (c) 2013-2014 released Microchip Technology Inc. All rights reserved.
Microchip licenses to you the right to use, modify, copy and distribute
Software only when embedded on a Microchip microcontroller or digital signal
controller that is integrated into your product or third party product
(pursuant to the sublicense terms in the accompanying license agreement).
You should refer to the license agreement accompanying this Software for
additional information regarding your rights and obligations.
SOFTWARE AND DOCUMENTATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF
MERCHANTABILITY, TITLE, NON-INFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE.
IN NO EVENT SHALL MICROCHIP OR ITS LICENSORS BE LIABLE OR OBLIGATED UNDER
CONTRACT, NEGLIGENCE, STRICT LIABILITY, CONTRIBUTION, BREACH OF WARRANTY, OR
OTHER LEGAL EQUITABLE THEORY ANY DIRECT OR INDIRECT DAMAGES OR EXPENSES
INCLUDING BUT NOT LIMITED TO ANY INCIDENTAL, SPECIAL, INDIRECT, PUNITIVE OR
CONSEQUENTIAL DAMAGES, LOST PROFITS OR LOST DATA, COST OF PROCUREMENT OF
SUBSTITUTE GOODS, TECHNOLOGY, SERVICES, OR ANY CLAIMS BY THIRD PARTIES
(INCLUDING BUT NOT LIMITED TO ANY DEFENSE THEREOF), OR OTHER SIMILAR COSTS.
*******************************************************************************/
// DOM-IGNORE-END
// *****************************************************************************
// *****************************************************************************
// Section: Included Files
// *****************************************************************************
// *****************************************************************************
#include "app.h"
#include "stdio.h"
char Buf[32];
int delay_Clock = 200000000;
APP_DATA appData;
SYS_FS_HANDLE my_fileHandle; //ファイルハンドル
bool Flag_SdConnected;
int Num0; //SDカード脱着回数
void delay_us(volatile unsigned int usec) //1μsec遅延
{
volatile int count;
count = (int)(delay_Clock/20000000)*usec;
do //実測 at 200MH (Clock=200000000)
{ //delay_us(1000)：1000.4μsec delay_us(100)：100.6μsec delay_us(10):10.5μsec delay_us(1)：1.5μsec
asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP");asm("NOP");
asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP"); asm("NOP");
count--;
}while(count != 0);
}
void delay_ms(volatile unsigned int msec) //1msec遅延
{
volatile unsigned int i; //実測：at200MH (Clock=200000000)//delay_ms(1)： 1.0006msec delay_ms(100)：100.04msec
for(i=0; i<msec; i++)
delay_us(1000);
}
void APP_SYSFSEventHandler(SYS_FS_EVENT event, void * eventData, uintptr_t context) //SDカードのマウント有無を調べるコールバック関数
{
switch(event)
{
/* If the event is mount then check which media has been mounted */
case SYS_FS_EVENT_MOUNT:
if(0 == strcmp((const char *)eventData,"/mnt/myDrive1"))
{
Flag_SdConnected = true;
LATDbits.LATD0 = 1;
}
break;
/* If the event is unmount then check which media has been unmount */
case SYS_FS_EVENT_UNMOUNT:
if(0 == strcmp((const char *)eventData,"/mnt/myDrive1"))
{
Flag_SdConnected = false;
LATDbits.LATD0 = 0;
}
break;
case SYS_FS_EVENT_ERROR:
break;
default:
break;
}
}
void APP_SdMtCheck(void)
{
/* Set the event handler*/
SYS_FS_EventHandlerSet(APP_SYSFSEventHandler, (uintptr_t)NULL); //SDカードのマウント有無を調べるコールバック関数をセット
}
void APP_SdTasks(void)
{
SYS_FS_RESULT result = SYS_FS_RES_FAILURE;
/* The application task state machine */
switch(appData.state)
{
case APP_OPEN_FILE:
/* Wait until MSD is mounted and file search is sucessful */
if(Flag_SdConnected == true)
{
// ファイルを書き込みモードでオープン 但しファイルがなければ新規ファイル作成
my_fileHandle = SYS_FS_FileOpen("myTestData.txt", (SYS_FS_FILE_OPEN_WRITE));
if(my_fileHandle == SYS_FS_HANDLE_INVALID)
{ //ファイルオープンエラーの場合
lcd_cmd(0x80); //1目の先頭へ
sprintf(Buf,"FileOpen_w failed ");//
lcd_str(Buf); //液晶表示
while(1);
}
else
{
SYS_FS_FileClose(my_fileHandle);
Num0++;
lcd_cmd(0x80); //1目の先頭へ
sprintf(Buf,"FileOpen_w OK !! "); //液晶に"W_ModeOpen OK" を表示
lcd_str(Buf); //液晶表示
lcd_cmd(0xC0); //２行目の先頭へ
sprintf(Buf,"Num0=%d ", Num0); //ysNum：SDカード脱着回数
lcd_str(Buf); // 開始メッセージ2行目表示
appData.state = APP_IDLE;
}
}
break;
case APP_IDLE:
LATAbits.LATA14 = 1;
if(Flag_SdConnected == false) //SDカードを抜くと 挿入検出待ちモードに移行する。
{
appData.state = APP_OPEN_FILE;
}
else
{
}
break;
default:
break;
}
}
// *****************************************************************************
// *****************************************************************************
// Section: Global Data Definitions
// *****************************************************************************
// *****************************************************************************
// *****************************************************************************
/* Application Data
Summary:
Holds application data
Description:
This structure holds the application's data.
Remarks:
This structure should be initialized by the APP_Initialize function.
Application strings and buffers are be defined outside this structure.
*/
APP_DATA appData;
// *****************************************************************************
// *****************************************************************************
// Section: Application Callback Functions
// *****************************************************************************
// *****************************************************************************
/* TODO: Add any necessary callback functions.
*/
// *****************************************************************************
// *****************************************************************************
// Section: Application Local Functions
// *****************************************************************************
// *****************************************************************************
/* TODO: Add any necessary local functions.
*/
// *****************************************************************************
// *****************************************************************************
// Section: Application Initialization and State Machine Functions
// *****************************************************************************
// *****************************************************************************
/*******************************************************************************
Function:
void APP_Initialize ( void )
Remarks:
See prototype in app.h.
*/
void APP_Initialize ( void )
{
/* Place the App state machine in its initial state. */
appData.state = APP_STATE_INIT;
/* TODO: Initialize your application's state machine and other
* parameters.
*/
appData.state = APP_OPEN_FILE;
lcd_init(); // LCD初期化
lcd_cmd(0b00001100); // カーソル:OFF ブﾘﾝｸ:OFF
lcd_clear(); // 全消去
lcd_cmd(0x80); //1行目の先頭へ
sprintf(Buf,"PIC32MZ SD "); //ファイル名 //空白必須
lcd_str(Buf); // 開始メッセージ1行目表示
lcd_cmd(0xC0); //２行目の先頭へ
sprintf(Buf,"File OpenClose "); //タッチY座標表示
lcd_str(Buf); // 開始メッセージ2行目表示
delay_ms(2000);
}
/******************************************************************************
Function:
void APP_Tasks ( void )
Remarks:
See prototype in app.h.
*/
void APP_Tasks ( void )
{
APP_SdMtCheck(); //SDカードのマウントチェック
APP_SdTasks(); //SDカードのメインタスク
}
/*******************************************************************************
End of File
*/