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main_touch_lcd.c
152 lines (129 loc) · 4.64 KB
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main_touch_lcd.c
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#include <msp430.h>
#include "CTS_Layer.h"
#include "lcd.h"
#include "lcd_charset.h"
// Uncomment to have this compiler directive run characterization functions only
// Comment to have this compiler directive run example application
//#define ELEMENT_CHARACTERIZATION_MODE
#define DELAY 1000 // Timer delay timeout count, 5000*0.1msec = 500 msec
// was 5000
struct Element * keyPressed; // Pointer to the Element structure
#ifdef ELEMENT_CHARACTERIZATION_MODE
// Delta Counts returned from the API function for the sensor during characterization
unsigned int wheelCnt[5]; // Becuase the Wheel is composed of five elements
#endif
// Sleep Function
// Configures Timer A to run off ACLK, count in UP mode, places the CPU in LPM3
// and enables the interrupt vector to jump to ISR upon timeout
void sleep(unsigned int time)
{
TA0CCR0 = time;
TA0CTL = TASSEL_1+MC_1+TACLR;
TA0CCTL0 &= ~CCIFG;
TA0CCTL0 |= CCIE;
__bis_SR_register(LPM3_bits+GIE);
__no_operation();
}
// Main Function
void main(void)
{
uint8_t last = 0;
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
BCSCTL1 = CALBC1_16MHZ; // Set DCO to 1, 8, 12 or 16MHz
DCOCTL = CALDCO_16MHZ;
BCSCTL1 |= DIVA_0; // ACLK/1 [ACLK/(0:1,1:2,2:4,3:8)]
//BCSCTL2 |= DIVS_3; // SMCLK/8 [SMCLK/(0:1,1:2,2:4,3:8)]
BCSCTL3 |= LFXT1S_2; // LFXT1 = VLO Clock Source
P1OUT |= BIT0; // P1.0 out
P1DIR |= BIT0; // P1.0 high
P2DIR |= BIT0 | BIT1 | BIT4 | BIT5; // Configure Port 2 pins outputs
// Initialize Baseline measurement
TI_CAPT_Init_Baseline(&button_bar);
// Update baseline measurement (Average 5 measurements)
TI_CAPT_Update_Baseline(&button_bar,5);
SPISetup(); // Initialize SPI Display
//drawBitmap(blackbird_96_64, 96, 8, 0, 0);
clear();
//setcharmode(1); //largechars
//writeString(2,1,"Press button!");
// Main loop starts here
while (1)
{
#ifdef ELEMENT_CHARACTERIZATION_MODE
// Get the raw delta counts for element characterization
TI_CAPT_Custom(&button_bar,wheelCnt);
__no_operation(); // Set breakpoint here
#endif
#ifndef ELEMENT_CHARACTERIZATION_MODE
// Return the pointer to the element which has been touched
keyPressed = (struct Element *)TI_CAPT_Buttons(&button_bar);
// If a button has been touched, then take some action
if(keyPressed)
{
// Up Element
if(keyPressed == &a_element)
{
P1OUT |= BIT0; // Turn on center LED
if (last != 2) {
clear();
last = 2;
drawBitmap(big_1, 32, 6, 32, 1);
//writeString(4,3,"A Pressed");
}
}
if(keyPressed == &b_element)
{
P1OUT |= BIT0; // Turn on center LED
if (last != 3) {
clear();
last = 3;
drawBitmap(big_2, 32, 6, 32, 1);
//writeString(4,3,"B Pressed");
}
}
if(keyPressed == &c_element)
{
P1OUT |= BIT0; // Turn on center LED
if (last != 1) {
clear();
last = 1;
drawBitmap(big_3, 32, 6, 32, 1);
//writeString(4,3,"C Pressed");
}
}
if(keyPressed == &d_element)
{
P1OUT |= BIT0; // Turn on center LED
if (last != 4) {
clear();
last = 4;
drawBitmap(big_4, 32, 6, 32, 1);
//writeString(4,3,"D Pressed");
}
}
}
else
{
P1OUT &= ~(BIT0); // Turn off center LED
if (last != 0)
{
drawBitmap(blackbird_96_64, 96, 8, 0, 0);
//writeString(4,4,"Press a button");
last = 0;
}
}
// Put the MSP430 into LPM3 for a certain DELAY period
sleep(DELAY);
#endif
}
} // End Main
/******************************************************************************/
// Timer0_A0 Interrupt Service Routine: Disables the timer and exists LPM3
/******************************************************************************/
#pragma vector=TIMER0_A0_VECTOR
__interrupt void ISR_Timer0_A0(void)
{
TA0CTL &= ~(MC_1);
TA0CCTL0 &= ~(CCIE);
__bic_SR_register_on_exit(LPM3_bits+GIE);
}