bsp.cpp

00001 #include "qp_port.h"
00002 #include "hangman.h"
00003 #include "bsp.h"
00004 #include "LPC17xx.h"
00005 #include "mbed.h"
00006 
00007 Q_DEFINE_THIS_FILE
00008 
00009 enum ISR_Priorities { // ISR priorities from highest urgency to lowest
00010     BUTTON_PRIO,
00011     SYSTICK_PRIO,
00012 };
00013 
00014 
00015 #define LED_PORT      LPC_GPIO1
00016 #define LED1_BIT     (1U << 18)
00017 #define LED2_BIT     (1U << 20)
00018 #define LED3_BIT     (1U << 21)
00019 #define LED4_BIT     (1U << 23)
00020 
00021 //............................................................................
00022 extern "C" void SysTick_Handler(void) {
00023     QK_ISR_ENTRY();                // inform the QK kernel of entering the ISR
00024 
00025 #ifdef Q_SPY
00026     uint32_t volatile dummy = SysTick->CTRL; // clear the COUNTFLAG in SysTick
00027     l_tickTime += l_tickPeriod;              // account for the clock rollover
00028 #endif
00029 
00030     QF::TICK(&l_SysTick_Handler);             // process all armed time events
00031 
00032     QK_ISR_EXIT();                  // inform the QK kernel of exiting the ISR
00033 }
00034 
00035 //............................................................................
00036 void BSP_init(void) {
00037     SystemInit();                            // initialize the clocking system
00038 
00039     // set LED port to output
00040     LED_PORT->FIODIR |= (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
00041 
00042     // clear the LEDs
00043     LED_PORT->FIOCLR  = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
00044 
00045     QS_OBJ_DICTIONARY(&l_SysTick_Handler);
00046 }
00047 
00048 //............................................................................
00049 void BSP_lcdScrollIn(char* line1, char* line2) {
00050 // scroller algorithm
00051     lcd.cls();
00052     char output1[17];
00053     char output2[17];
00054     for ( int i = 0; i < 17; i++) {
00055         output1[i] = ' ';
00056         output2[i] = ' ';
00057     }
00058     for (int i = 0; i < 17; i++) {
00059         for (int col = 0; col < 17; col++) {
00060 
00061             if (col >= i) {
00062                 output1[col] = ' ';
00063                 output2[col] = ' ';
00064             } else {
00065                 output1[col] = (line1[col+(16-i)]);
00066                 output2[col] = (line2[col+(16-i)]);
00067             }
00068             lcd.locate(col,0);
00069             lcd.putc(output1[col]);
00070             lcd.locate(col,1);
00071             lcd.putc(output2[col]);
00072         }
00073         wait(0.4);
00074     }
00075 }
00076 
00077 //............................................................................
00078 void BSP_lcdUpdate(char* line1,char* line2) {
00079     uint8_t length1 = strlen(line1);
00080     uint8_t length2 = strlen(line2);
00081     if (length1 > length2)
00082         length1 = length2;
00083     lcd.cls();
00084     if (length1 < 17)
00085         for (int col = 0; col < 17 && col < length1; col++) {
00086             lcd.locate(col,0);
00087             lcd.putc(*(line1+col));
00088             lcd.locate(col,1);
00089             lcd.putc(*(line2+col));
00090         }
00091     else
00092         for (int col = 0; col < 17; col++) {
00093             lcd.locate(col,0);
00094             lcd.putc(*(line1+col));
00095             lcd.locate(col,1);
00096             lcd.putc(*(line2+col));
00097         }
00098 }
00099 
00100 //............................................................................
00101 void QF::onStartup(void) {
00102     // set up the SysTick timer to fire at BSP_TICKS_PER_SEC rate
00103     SysTick_Config(SystemCoreClock / BSP_TICKS_PER_SEC);
00104 
00105     // set priorities of all interrupts in the system...
00106     NVIC_SetPriority(SysTick_IRQn, SYSTICK_PRIO);
00107     //NVIC_SetPriority(EINT0_IRQn,   GPIOPORTA_PRIO);
00108 
00109     //NVIC_EnableIRQ(EINT0_IRQn);
00110 }
00111 //............................................................................
00112 void QF::onCleanup(void) {
00113 }
00114 //............................................................................
00115 void QK::onIdle(void) {
00116 
00117     QF_INT_LOCK(dummy);
00118     LED_PORT->FIOSET = LED4_BIT;                           // turn the LED4 on
00119     __NOP();                        // delay a bit to see some light intensity
00120     __NOP();
00121     __NOP();
00122     __NOP();
00123     LED_PORT->FIOCLR = LED4_BIT;                          // turn the LED4 off
00124     QF_INT_UNLOCK(dummy);
00125 
00126     __WFI();
00127 }
00128 
00129 //............................................................................
00130 void Q_onAssert(char const Q_ROM * const Q_ROM_VAR file, int line) {
00131     (void)file;                                      // avoid compiler warning
00132     (void)line;                                      // avoid compiler warning
00133     QF_INT_LOCK(dummy);          // make sure that all interrupts are disabled
00134     // light up all LEDs
00135     LED_PORT->FIOSET = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
00136 
00137     for (;;) {          // NOTE: replace the loop with reset for final version
00138     }
00139 }