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140 lines
5.0 KiB
C
140 lines
5.0 KiB
C
/* Board Support Package (BSP) for the EK-TM4C123GXL board */
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#include "qpc.h"
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#include "bsp.h"
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#include "TM4C123GH6PM.h" /* the device specific header (TI) */
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/* add other drivers if necessary... */
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/* Local-scope objects -----------------------------------------------------*/
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/* LEDs on the board */
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#define LED_RED (1U << 1)
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#define LED_GREEN (1U << 3)
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#define LED_BLUE (1U << 2)
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/* Buttons on the board */
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#define BTN_SW1 (1U << 4)
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#define BTN_SW2 (1U << 0)
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/* Test pins */
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#define PD0_PIN (1U << 0)
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#define PD1_PIN (1U << 1)
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/* Assertion handler ======================================================*/
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Q_NORETURN Q_onAssert(char const * module, int_t id) {
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// TBD: Perform corrective actions and damage control
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// SPECIFIC to your particular system.
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//
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(void)module; /* unused parameter */
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(void)id; /* unused parameter */
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GPIOF_AHB->DATA_Bits[LED_RED | LED_GREEN | LED_BLUE] = 0xFFU; /* all ON */
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#ifndef NDEBUG /* debug build? */
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while (1) { /* tie the CPU in this endless loop */
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}
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#endif
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NVIC_SystemReset(); /* reset the CPU */
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}
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//............................................................................
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/* assert-handling function called by exception handlers in the startup code */
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void assert_failed(char const * const module, int_t const id); // prototype
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void assert_failed(char const * const module, int_t const id) {
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Q_onAssert(module, id);
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}
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/* ISRs ===============================================*/
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void SysTick_Handler(void); // prototype
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void SysTick_Handler(void) {
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QXK_ISR_ENTRY(); /* inform QXK about entering an ISR */
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QF_TICK_X(0U, (void *)0); /* process time events for rate 0 */
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QXK_ISR_EXIT(); /* inform QXK about exiting an ISR */
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}
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/*..........................................................................*/
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void GPIOPortF_IRQHandler(void); // prototype
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void GPIOPortF_IRQHandler(void) {
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QXK_ISR_ENTRY(); /* inform QXK about entering an ISR */
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if ((GPIOF_AHB->RIS & BTN_SW1) != 0U) { /* interrupt caused by SW1? */
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/* post an immutable "button-press" event from ISR */
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static QEvt const buttonPressedEvt
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= QEVT_INITIALIZER(BUTTON_PRESS_SIG);
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QACTIVE_POST(AO_Blinky2, &buttonPressedEvt, 0U);
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}
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GPIOF_AHB->ICR = 0xFFU; /* clear interrupt sources */
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QXK_ISR_EXIT(); /* inform QXK about exiting an ISR */
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}
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/* BSP functions ===========================================================*/
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void BSP_init(void) {
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/* enable clock for to the peripherals used by this application... */
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SYSCTL->RCGCGPIO |= (1U << 5); /* enable Run mode for GPIOF */
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SYSCTL->GPIOHBCTL |= (1U << 5); /* enable AHB for GPIOF */
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__ISB();
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__DSB();
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/* configure LEDs (digital output) */
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GPIOF_AHB->DIR |= (LED_RED | LED_BLUE | LED_GREEN);
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GPIOF_AHB->DEN |= (LED_RED | LED_BLUE | LED_GREEN);
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GPIOF_AHB->DATA_Bits[LED_RED | LED_BLUE | LED_GREEN] = 0U;
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/* configure switch SW1 */
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GPIOF_AHB->DIR &= ~BTN_SW1; /* input */
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GPIOF_AHB->DEN |= BTN_SW1; /* digital enable */
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GPIOF_AHB->PUR |= BTN_SW1; /* pull-up resistor enable */
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/* GPIO interrupt setup for SW1 */
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GPIOF_AHB->IS &= ~BTN_SW1; /* edge detect for SW1 */
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GPIOF_AHB->IBE &= ~BTN_SW1; /* only one edge generate the interrupt */
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GPIOF_AHB->IEV &= ~BTN_SW1; /* a falling edge triggers the interrupt */
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GPIOF_AHB->IM |= BTN_SW1; /* enable GPIOF interrupt for SW1 */
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}
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/*..........................................................................*/
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void BSP_ledRedOn(void) {
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GPIOF_AHB->DATA_Bits[LED_RED] = LED_RED;
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}
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/*..........................................................................*/
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void BSP_ledRedOff(void) {
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GPIOF_AHB->DATA_Bits[LED_RED] = 0U;
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}
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/*..........................................................................*/
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void BSP_ledBlueOn(void) {
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GPIOF_AHB->DATA_Bits[LED_BLUE] = LED_BLUE;
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}
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/*..........................................................................*/
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void BSP_ledBlueOff(void) {
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GPIOF_AHB->DATA_Bits[LED_BLUE] = 0U;
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}
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/*..........................................................................*/
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void BSP_ledGreenOn(void) {
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GPIOF_AHB->DATA_Bits[LED_GREEN] = LED_GREEN;
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}
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/*..........................................................................*/
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void BSP_ledGreenOff(void) {
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GPIOF_AHB->DATA_Bits[LED_GREEN] = 0U;
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}
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/* callbacks ---------------------------------------------------------------*/
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void QF_onStartup(void) {
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SystemCoreClockUpdate();
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SysTick_Config(SystemCoreClock / BSP_TICKS_PER_SEC);
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/* set the interrupt priorities of "kernel aware" interrupts */
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NVIC_SetPriority(SysTick_IRQn, QF_AWARE_ISR_CMSIS_PRI);
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NVIC_SetPriority(GPIOF_IRQn, QF_AWARE_ISR_CMSIS_PRI + 1);
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/* enable IRQs in NVIC... */
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NVIC_EnableIRQ(GPIOF_IRQn);
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}
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/*..........................................................................*/
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void QF_onCleanup(void) {
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}
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void QXK_onIdle(void) {
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GPIOF_AHB->DATA_Bits[LED_RED] = LED_RED;
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GPIOF_AHB->DATA_Bits[LED_RED] = 0U;
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//__WFI(); /* stop the CPU and Wait for Interrupt */
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}
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