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qpc/examples/arm-cortex/qk/gnu/dpp-qk-stm3210c-eval/bsp.c
Quantum Leaps 696f5cef7b 4.5.02
2012-08-14 18:07:04 -04:00

355 lines
14 KiB
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/*****************************************************************************
* Product: DPP example, STM3210C-EVAL board, QK kernel
* Last Updated for Version: 4.5.02
* Date of the Last Update: Jul 26, 2012
*
* Q u a n t u m L e a P s
* ---------------------------
* innovating embedded systems
*
* Copyright (C) 2002-2012 Quantum Leaps, LLC. All rights reserved.
*
* This program is open source software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* Alternatively, this program may be distributed and modified under the
* terms of Quantum Leaps commercial licenses, which expressly supersede
* the GNU General Public License and are specifically designed for
* licensees interested in retaining the proprietary status of their code.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Contact information:
* Quantum Leaps Web sites: http://www.quantum-leaps.com
* http://www.state-machine.com
* e-mail: info@quantum-leaps.com
*****************************************************************************/
#include "qp_port.h"
#include "dpp.h"
#include "bsp.h"
Q_DEFINE_THIS_FILE
#include "stm32f10x.h"
#include "stm32_eval.h"
#include "stm3210c_eval_lcd.h"
enum ISR_Priorities { /* ISR priorities starting from the highest urgency */
EXTI0_PRIO, /* highest priority */
SYSTICK_PRIO,
/* ... */
};
/*..........................................................................*/
static unsigned l_rnd; /* random seed */
#ifdef Q_SPY
QSTimeCtr QS_tickTime_;
QSTimeCtr QS_tickPeriod_;
static uint8_t l_SysTick_Handler;
#define QS_BUF_SIZE (2*1024)
#define QS_BAUD_RATE 115200
enum AppRecords { /* application-specific trace records */
PHILO_STAT = QS_USER
};
#endif
/*..........................................................................*/
void SysTick_Handler(void) __attribute__((__interrupt__));
void SysTick_Handler(void) {
QK_ISR_ENTRY(); /* inform QK-nano about ISR entry */
#ifdef Q_SPY
uint32_t dummy = SysTick->CTRL; /* clear NVIC_ST_CTRL_COUNT flag */
QS_tickTime_ += QS_tickPeriod_; /* account for the clock rollover */
#endif
QF_TICK(&l_SysTick_Handler); /* process all armed time events */
QK_ISR_EXIT(); /* inform QK-nano about ISR exit */
}
/*..........................................................................*/
void EXTI0_IRQHandler(void) __attribute__((__interrupt__));
void EXTI0_IRQHandler(void) {
QK_ISR_ENTRY(); /* inform QK-nano about ISR entry */
EXTI->PR = 0x1; /* set the EXTI->PR[0] to clear the EXTI_SWIER[0] bit */
/* for testing */
QACTIVE_POST(AO_Table, Q_NEW(QEvt, MAX_PUB_SIG), (void *)0);
QK_ISR_EXIT(); /* inform QK-nano about ISR exit */
}
/*..........................................................................*/
void BSP_init(void) {
EXTI_InitTypeDef exti_init;
SystemInit(); /* initialize STM32 system (clock, PLL and Flash) */
/* initialize LEDs, Key Button, and LCD on STM3210X-EVAL board */
STM_EVAL_LEDInit(LED1);
STM_EVAL_LEDInit(LED2);
STM_EVAL_LEDInit(LED3);
STM_EVAL_LEDInit(LED4);
/* initialize the EXTI Line0 interrupt used for testing */
exti_init.EXTI_Mode = EXTI_Mode_Interrupt;
exti_init.EXTI_Trigger = EXTI_Trigger_Rising;
exti_init.EXTI_Line = EXTI_Line0;
exti_init.EXTI_LineCmd = ENABLE;
EXTI_Init(&exti_init);
STM3210C_LCD_Init(); /* initialize the LCD */
LCD_Clear(White); /* clear the LCD */
LCD_SetBackColor(Grey);
LCD_SetTextColor(Black);
LCD_DisplayString(Line0, 0, " Quantum Leaps ");
LCD_DisplayString(Line1, 0, " DPP example ");
LCD_DisplayString(Line2, 0, " QP/C (QK) ");
LCD_DisplayString(Line2, 14*16, QF_getVersion());
LCD_SetBackColor(White);
LCD_DisplayString(Line5, 0, "DPP:");
LCD_SetBackColor(Black);
LCD_SetTextColor(Yellow);
LCD_DisplayString(Line9, 0, " state-machine.com ");
LCD_SetBackColor(Blue);
LCD_SetTextColor(White);
LCD_DisplayString(Line5, 4*16, "0 ,1 ,2 ,3 ,4 ");
if (QS_INIT((void *)0) == 0) { /* initialize the QS software tracing */
Q_ERROR();
}
QS_OBJ_DICTIONARY(&l_SysTick_Handler);
}
/*..........................................................................*/
void QF_onStartup(void) {
NVIC_InitTypeDef nvic_init;
/* Set up and enable the SysTick timer. It will be used as a reference
* for delay loops in the interrupt handlers. The SysTick timer period
* will be set up for BSP_TICKS_PER_SEC.
*/
SysTick_Config(SystemFrequency_SysClk / BSP_TICKS_PER_SEC);
/* Enable the EXTI0 Interrupt used for testing preemptions */
nvic_init.NVIC_IRQChannel = EXTI0_IRQn;
nvic_init.NVIC_IRQChannelPreemptionPriority = 0;
nvic_init.NVIC_IRQChannelSubPriority = 0;
nvic_init.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic_init);/* enables the device and sets interrupt priority */
/* set priorities of all interrupts in the system... */
NVIC_SetPriority(SysTick_IRQn, SYSTICK_PRIO);
NVIC_SetPriority(EXTI0_IRQn, EXTI0_PRIO);
/* ... */
}
/*..........................................................................*/
void QF_onCleanup(void) {
}
/*..........................................................................*/
void QK_onIdle(void) {
/* toggle the blue LED on and then off, see NOTE01 */
QF_INT_DISABLE();
STM_EVAL_LEDOn (LED4); /* blue LED on */
STM_EVAL_LEDOff(LED4); /* blue LED off */
QF_INT_ENABLE();
#ifdef Q_SPY
if ((USART2->SR & USART_FLAG_TXE) != 0) { /* is TXE empty? */
uint16_t b;
QF_INT_DISABLE();
b = QS_getByte();
QF_INT_ENABLE();
if (b != QS_EOD) { /* not End-Of-Data? */
USART2->DR = (b & 0xFF); /* put into the DR register */
}
}
#elif defined NDEBUG
__WFI(); /* wait for interrupt */
#endif
}
/*..........................................................................*/
/* error routine that is called if the STM32 library encounters an error */
void assert_failed(char const *file, int line) {
Q_onAssert(file, line);
}
/*..........................................................................*/
void Q_onAssert(char const * const file, int line) {
(void)file; /* avoid compiler warning */
(void)line; /* avoid compiler warning */
QF_INT_DISABLE(); /* make sure that all interrupts are disabled */
for (;;) { /* NOTE: replace the loop with reset for final version */
}
}
/*..........................................................................*/
void BSP_displayPhilStat(uint8_t n, char const *stat) {
LCD_DisplayChar(Line5, (3*16*n + 5*16), stat[0]);
QS_BEGIN(PHILO_STAT, AO_Philo[n]) /* application-specific record begin */
QS_U8(1, n); /* Philosopher number */
QS_STR(stat); /* Philosopher status */
QS_END()
}
/*..........................................................................*/
void BSP_displayPaused(uint8_t paused) {
(void)paused;
}
/*..........................................................................*/
uint32_t BSP_random(void) { /* a very cheap pseudo-random-number generator */
/* "Super-Duper" Linear Congruential Generator (LCG)
* LCG(2^32, 3*7*11*13*23, 0, seed)
*/
l_rnd = l_rnd * (3*7*11*13*23);
return l_rnd >> 8;
}
/*..........................................................................*/
void BSP_randomSeed(uint32_t seed) {
l_rnd = seed;
}
/*..........................................................................*/
void BSP_terminate(int16_t result) {
(void)result;
}
/*--------------------------------------------------------------------------*/
#ifdef Q_SPY
/*..........................................................................*/
uint8_t QS_onStartup(void const *arg) {
static uint8_t qsBuf[QS_BUF_SIZE]; /* buffer for Quantum Spy */
QS_initBuf(qsBuf, sizeof(qsBuf));
/* enable USART2 and GPIOA/AFIO clocks */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO,
ENABLE);
GPIO_PinRemapConfig(GPIO_Remap_USART2, ENABLE);
/* configure GPIOD.5 as push-pull... */
GPIO_InitTypeDef gpio_init;
gpio_init.GPIO_Pin = GPIO_Pin_5;
gpio_init.GPIO_Speed = GPIO_Speed_50MHz;
gpio_init.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &gpio_init);
/* configure GPIOD.6 as input floating... */
gpio_init.GPIO_Pin = GPIO_Pin_6;
gpio_init.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOD, &gpio_init);
USART_InitTypeDef usart_init;
usart_init.USART_BaudRate = QS_BAUD_RATE;
usart_init.USART_WordLength = USART_WordLength_8b;
usart_init.USART_StopBits = USART_StopBits_1;
usart_init.USART_Parity = USART_Parity_No ;
usart_init.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
usart_init.USART_Mode = USART_Mode_Tx;
USART_Init(USART2, &usart_init);
USART_ClockInitTypeDef usart_clk_init;
usart_clk_init.USART_Clock = USART_Clock_Disable;
usart_clk_init.USART_CPOL = USART_CPOL_Low;
usart_clk_init.USART_CPHA = USART_CPHA_2Edge;
usart_clk_init.USART_LastBit = USART_LastBit_Disable;
USART_ClockInit(USART2, &usart_clk_init);
USART_Cmd(USART2, ENABLE); /* enable USART2 */
QS_tickPeriod_ = (QSTimeCtr)(SystemFrequency_SysClk / BSP_TICKS_PER_SEC);
QS_tickTime_ = QS_tickPeriod_; /* to start the timestamp at zero */
/* setup the QS filters... */
QS_FILTER_ON(QS_ALL_RECORDS);
// QS_FILTER_OFF(QS_QEP_STATE_EMPTY);
// QS_FILTER_OFF(QS_QEP_STATE_ENTRY);
// QS_FILTER_OFF(QS_QEP_STATE_EXIT);
// QS_FILTER_OFF(QS_QEP_STATE_INIT);
// QS_FILTER_OFF(QS_QEP_INIT_TRAN);
// QS_FILTER_OFF(QS_QEP_INTERN_TRAN);
// QS_FILTER_OFF(QS_QEP_TRAN);
// QS_FILTER_OFF(QS_QEP_IGNORED);
QS_FILTER_OFF(QS_QF_ACTIVE_ADD);
QS_FILTER_OFF(QS_QF_ACTIVE_REMOVE);
QS_FILTER_OFF(QS_QF_ACTIVE_SUBSCRIBE);
QS_FILTER_OFF(QS_QF_ACTIVE_UNSUBSCRIBE);
QS_FILTER_OFF(QS_QF_ACTIVE_POST_FIFO);
QS_FILTER_OFF(QS_QF_ACTIVE_POST_LIFO);
QS_FILTER_OFF(QS_QF_ACTIVE_GET);
QS_FILTER_OFF(QS_QF_ACTIVE_GET_LAST);
QS_FILTER_OFF(QS_QF_EQUEUE_INIT);
QS_FILTER_OFF(QS_QF_EQUEUE_POST_FIFO);
QS_FILTER_OFF(QS_QF_EQUEUE_POST_LIFO);
QS_FILTER_OFF(QS_QF_EQUEUE_GET);
QS_FILTER_OFF(QS_QF_EQUEUE_GET_LAST);
QS_FILTER_OFF(QS_QF_MPOOL_INIT);
QS_FILTER_OFF(QS_QF_MPOOL_GET);
QS_FILTER_OFF(QS_QF_MPOOL_PUT);
QS_FILTER_OFF(QS_QF_PUBLISH);
QS_FILTER_OFF(QS_QF_NEW);
QS_FILTER_OFF(QS_QF_GC_ATTEMPT);
QS_FILTER_OFF(QS_QF_GC);
// QS_FILTER_OFF(QS_QF_TICK);
QS_FILTER_OFF(QS_QF_TIMEEVT_ARM);
QS_FILTER_OFF(QS_QF_TIMEEVT_AUTO_DISARM);
QS_FILTER_OFF(QS_QF_TIMEEVT_DISARM_ATTEMPT);
QS_FILTER_OFF(QS_QF_TIMEEVT_DISARM);
QS_FILTER_OFF(QS_QF_TIMEEVT_REARM);
QS_FILTER_OFF(QS_QF_TIMEEVT_POST);
QS_FILTER_OFF(QS_QF_CRIT_ENTRY);
QS_FILTER_OFF(QS_QF_CRIT_EXIT);
QS_FILTER_OFF(QS_QF_ISR_ENTRY);
QS_FILTER_OFF(QS_QF_ISR_EXIT);
// QS_FILTER_OFF(QS_QK_MUTEX_LOCK);
// QS_FILTER_OFF(QS_QK_MUTEX_UNLOCK);
QS_FILTER_OFF(QS_QK_SCHEDULE);
return (uint8_t)1; /* return success */
}
/*..........................................................................*/
void QS_onCleanup(void) {
}
/*..........................................................................*/
QSTimeCtr QS_onGetTime(void) { /* invoked with interrupts locked */
if ((SysTick->CTRL & 0x00010000) == 0) { /* COUNT no set? */
return QS_tickTime_ - (QSTimeCtr)SysTick->VAL;
}
else { /* the rollover occured, but the SysTick_ISR did not run yet */
return QS_tickTime_ + QS_tickPeriod_ - (QSTimeCtr)SysTick->VAL;
}
}
/*..........................................................................*/
void QS_onFlush(void) {
uint16_t b;
while ((b = QS_getByte()) != QS_EOD) { /* while not End-Of-Data... */
while ((USART2->SR & USART_FLAG_TXE) == 0) { /* while TXE not empty */
}
USART2->DR = (b & 0xFF); /* put into the DR register */
}
}
#endif /* Q_SPY */
/*--------------------------------------------------------------------------*/
/*****************************************************************************
* NOTE01:
* The blue LED is used to visualize the idle loop activity. The brightness
* of the LED is proportional to the frequency of invcations of the idle loop.
* Please note that the LED is toggled with interrupts locked, so no interrupt
* execution time contributes to the brightness of the User LED.
*/
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