FDI UEZGUI-1788-56VI, Start Here Manual

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uEZ GUI Start Here Guide UEZGUI-1788-56VI
Rev. 1.11 Aug 31, 2016 Page 23
All the tasks that will run in a project are called within main.c. In the following tasks we
will update main.c to create the new task.
1. Open main.c
2. Add the new #include shown below.
3. Within the function MainTask(), find the existing UEZTaskCreate() function calls.
4. Add a new UEZTaskCreate() function call for the temperature monitoring thread.
#include <uEZ.h>
#include <uEZTemperature.h>
#include <uEZGPIO.h>
#include <uEZProcessor.h>
#include "MyTask.h"
#include <stdio.h>
extern void UpdateTemp ( char * myString ); // Access to function in
SecondScreen.c
TUInt32 TemperatureLoopTask
( T_uezTask aMyTask , void * aParams ) {
char myString [ 10 ] = "" ; // String to hold temperature
TInt32 i , f ; // Variables for conversion
T_uezDevice temp ; // uEZ device variable
TInt32 Temperature ; // Variable to hold temperature reading
UEZTemperatureOpen
( "Temp0" , & temp ); // Open the on board device
while ( 1 ) {
UEZTemperatureRead ( temp , & Temperature ); // Read the temperature
// Convert to integer and decimal
i = Temperature >> 16 ;
f = (((( TUInt32 ) Temperature ) & 0xFFFF ) * 10 ) >> 16 ;
sprintf ( myString , "%02d.%01d *C" , i , f ); // Print to text array
UpdateTemp
( myString ); // Update the temperature text on the screen
UEZTaskDelay
( 250 ); // Wait 1/4 seconds before reading again
}
}
#include "MyTask.h"
void MainTask ( void ) {
// Run the teperature reading task located in My.Task.c
UEZTaskCreate ( TemperatureLoopTask , "Temperature" , 1024 ,
( void *) 0 , UEZ_PRIORITY_NORMAL , 0 );
//Start emWin
UEZTaskCreate ( GUIInterfaceTask , "GUIInterface" , ( 4 * 1024 ),
( void *) 0 , UEZ_PRIORITY_NORMAL , 0 );
while ( 1 ) { // Loop forever so that the main task never exits
UEZTaskDelay ( 1000 );
}
}