Diff: bsp.cpp

Revision:

0:1521c946a57b

Child:

1:4efaebc256d3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/bsp.cpp	Wed Feb 08 22:20:11 2012 +0000
@@ -0,0 +1,137 @@
+#include "qp_port.h"
+#include "hangman.h"
+#include "bsp.h"
+#include "LPC17xx.h"
+#include "mbed.h"
+
+enum ISR_Priorities { // ISR priorities from highest urgency to lowest
+    BUTTON_PRIO,
+    SYSTICK_PRIO,
+};
+
+
+#define LED_PORT      LPC_GPIO1
+#define LED1_BIT     (1U << 18)
+#define LED2_BIT     (1U << 20)
+#define LED3_BIT     (1U << 21)
+#define LED4_BIT     (1U << 23)
+
+//............................................................................
+extern "C" void SysTick_Handler(void) {
+    QK_ISR_ENTRY();                // inform the QK kernel of entering the ISR
+
+#ifdef Q_SPY
+    uint32_t volatile dummy = SysTick->CTRL; // clear the COUNTFLAG in SysTick
+    l_tickTime += l_tickPeriod;              // account for the clock rollover
+#endif
+
+    QF::TICK(&l_SysTick_Handler);             // process all armed time events
+
+    QK_ISR_EXIT();                  // inform the QK kernel of exiting the ISR
+}
+
+//............................................................................
+void BSP_init(void) {
+    SystemInit();                            // initialize the clocking system
+
+    // set LED port to output
+    LED_PORT->FIODIR |= (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
+
+    // clear the LEDs
+    LED_PORT->FIOCLR  = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
+
+    QS_OBJ_DICTIONARY(&l_SysTick_Handler);
+}
+
+//............................................................................
+void BSP_lcdScrollIn(char* line1, char* line2) {
+// scroller algorithm
+    lcd.cls();
+    char output1[17];
+    char output2[17];
+    for ( int i = 0; i < 17; i++) {
+        output1[i] = ' ';
+        output2[i] = ' ';
+    }
+    for (int i = 0; i < 17; i++) {
+        for (int col = 0; col < 17; col++) {
+
+            if (col >= i) {
+                output1[col] = ' ';
+                output2[col] = ' ';
+            } else {
+                output1[col] = (line1[col+(16-i)]);
+                output2[col] = (line2[col+(16-i)]);
+            }
+            lcd.locate(col,0);
+            lcd.putc(output1[col]);
+            lcd.locate(col,1);
+            lcd.putc(output2[col]);
+        }
+        wait(0.4);
+    }
+}
+
+//............................................................................
+void BSP_lcdUpdate(char* line1,char* line2) {
+    uint8_t length1 = strlen(line1);
+    uint8_t length2 = strlen(line2);
+    if (length1 > length2)
+        length1 = length2;
+    lcd.cls();
+    if (length1 < 17)
+        for (int col = 0; col < 17 && col < length1; col++) {
+            lcd.locate(col,0);
+            lcd.putc(*(line1+col));
+            lcd.locate(col,1);
+            lcd.putc(*(line2+col));
+        }
+    else
+        for (int col = 0; col < 17; col++) {
+            lcd.locate(col,0);
+            lcd.putc(*(line1+col));
+            lcd.locate(col,1);
+            lcd.putc(*(line2+col));
+        }
+}
+
+//............................................................................
+void QF::onStartup(void) {
+    // set up the SysTick timer to fire at BSP_TICKS_PER_SEC rate
+    SysTick_Config(SystemCoreClock / BSP_TICKS_PER_SEC);
+
+    // set priorities of all interrupts in the system...
+    NVIC_SetPriority(SysTick_IRQn, SYSTICK_PRIO);
+    //NVIC_SetPriority(EINT0_IRQn,   GPIOPORTA_PRIO);
+
+    //NVIC_EnableIRQ(EINT0_IRQn);
+}
+//............................................................................
+void QF::onCleanup(void) {
+}
+//............................................................................
+void QK::onIdle(void) {
+
+    QF_INT_LOCK(dummy);
+    LED_PORT->FIOSET = LED4_BIT;                           // turn the LED4 on
+    __NOP();                        // delay a bit to see some light intensity
+    __NOP();
+    __NOP();
+    __NOP();
+    LED_PORT->FIOCLR = LED4_BIT;                          // turn the LED4 off
+    QF_INT_UNLOCK(dummy);
+
+    __WFI();
+}
+
+//............................................................................
+void Q_onAssert(char const Q_ROM * const Q_ROM_VAR file, int line) {
+    (void)file;                                      // avoid compiler warning
+    (void)line;                                      // avoid compiler warning
+    QF_INT_LOCK(dummy);          // make sure that all interrupts are disabled
+    // light up all LEDs
+    LED_PORT->FIOSET = (LED1_BIT | LED2_BIT | LED3_BIT | LED4_BIT);
+
+    for (;;) {          // NOTE: replace the loop with reset for final version
+    }
+}
\ No newline at end of file