Definition in file main.c.
#include "defines.h"
#include "LCD_driver.h"
#include <inavr.h>
Include dependency graph for main.c:
Go to the source code of this file.
Defines | |
| #define | DELAY1 64 |
| Main function which contains the endless main loop. | |
| #define | DELAY2 5 |
Functions | |
| void | LCD_timerDelay (unsigned char delay) |
| Generate a delay that depends on the LCD clock rather than the system clock. | |
| void | main (void) |
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Main function which contains the endless main loop.
Definition at line 47 of file main.c. Referenced by main(). |
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Definition at line 48 of file main.c. Referenced by main(). |
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Generate a delay that depends on the LCD clock rather than the system clock.
Definition at line 34 of file main.c. References FALSE, LCD_status, LCD_timer, TRUE, _LCD_status::updateComplete, and _LCD_status::updateRequired. Referenced by main(). 00035 { 00036 __disable_interrupt(); 00037 LCD_timer = delay; //Plant LCD_timer seed to generate delay - delay*(1/[LCD frame rate]) 00038 LCD_status.updateComplete = FALSE; //Clear updateComplete to be able to test if LCD interrupt has been served 00039 LCD_status.updateRequired = TRUE; //Request update of the LCD to let the LCD ISR clear set updateComplete 00040 __enable_interrupt(); 00041 while( !LCD_status.updateComplete ); //Don't update the LCD_displayData into LCD has been updated 00042 }
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Definition at line 50 of file main.c. References DELAY1, DELAY2, FALSE, LCD_CONTRAST_LEVEL, LCD_Init(), LCD_SET_COLON, LCD_status, LCD_timerDelay(), LCD_WriteDigit(), TRUE, _LCD_status::updateComplete, and _LCD_status::updateRequired. 00051 { 00052 unsigned char counter; 00053 unsigned char testString[] = "STK502"; 00054 LCD_Init(); // initialize the LCD 00055 00056 __enable_interrupt(); 00057 00058 for(;;) //endless main loop 00059 { 00060 //---------------------------------------------------------- 00061 // Display a single character from the testString at a time 00062 //---------------------------------------------------------- 00063 for (counter = 0; counter < 6; counter++ ) 00064 { 00065 while( !LCD_status.updateComplete ); //Don't update the LCD_displayData into LCD has been updated 00066 LCD_status.updateRequired = FALSE; //Block the updating of the LCD while accessing LCD_displayData 00067 00068 LCD_WriteDigit( *(testString + counter), counter+2 ); //Write new data to LCD_displayData 00069 00070 LCD_status.updateComplete = FALSE; //Clear LCD_updateComplete flag to indicate that LCDdisplayData 00071 // has been updated, but LCD has not been updated yet. 00072 LCD_status.updateRequired = TRUE; //Request update of the LCD (release LCD update blocking). 00073 } 00074 while( !LCD_status.updateComplete ); //Make sure that the LCD_displayData has been latched 00075 00076 //---------------------------------------------------------- 00077 // Flash the two Colons on the LCD 00078 //---------------------------------------------------------- 00079 LCD_status.updateRequired = FALSE; //Block the updating of the LCD while accessing LCD_displayData 00080 LCD_SET_COLON(TRUE); //Display the colons in the LCD 00081 LCD_timerDelay( DELAY1 ); //Call LCD interrupt controlled delay 00082 00083 LCD_status.updateRequired = FALSE; //Block the updating of the LCD while accessing LCD_displayData 00084 LCD_SET_COLON(FALSE); //Hide the colons in the LCD 00085 LCD_timerDelay( DELAY1 ); //Call LCD interrupt controlled delay 00086 00087 //---------------------------------------------------------- 00088 // Vary the contrast level between min and max and min, and back to norm 00089 //---------------------------------------------------------- 00090 for(counter = 0x00; counter < 0x0F; counter++) //Increase LCD contrast to max, in smallest steps 00091 { 00092 LCD_CONTRAST_LEVEL(counter); 00093 LCD_timerDelay( DELAY2 ); //Call LCD interrupt controlled delay 00094 } 00095 for(counter = 0x0F; counter != 0x00; counter--) //Decrease LCD contrast to min, in smallest steps 00096 { 00097 LCD_CONTRAST_LEVEL(counter); 00098 LCD_timerDelay( DELAY2 ); //Call LCD interrupt controlled delay 00099 } 00100 LCD_CONTRAST_LEVEL( LCD_INITIAL_CONTRAST ); //Contrast level back to initial level 00101 00102 //---------------------------------------------------------- 00103 // Clear all LCD digits in within one LCD opdate 00104 //---------------------------------------------------------- 00105 while( !LCD_status.updateComplete ); //Wait for last LCD update to complete 00106 LCD_status.updateRequired = FALSE; //Disable further LCD updating 00107 for (counter = 2; counter < 8; counter++ ) 00108 { 00109 LCD_WriteDigit( '-', counter ); //Update LCD_displayData buffer 00110 } 00111 LCD_status.updateRequired = TRUE; //Enable LCD opdating 00112 while( !LCD_status.updateComplete ); //Make sure that the LCD_displayData has been latched... 00113 } 00114 }
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1.4.5