本文整理汇总了C++中rcc_peripheral_enable_clock函数的典型用法代码示例。如果您正苦于以下问题：C++ rcc_peripheral_enable_clock函数的具体用法？C++ rcc_peripheral_enable_clock怎么用？C++ rcc_peripheral_enable_clock使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了rcc_peripheral_enable_clock函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: PWR_Init
void PWR_Init(void)
{
SCB_VTOR = VECTOR_TABLE_LOCATION;
SCB_SCR &= ~SCB_SCR_SLEEPONEXIT; //sleep immediate on WFI
rcc_clock_setup_in_hse_8mhz_out_72mhz();
/* Enable GPIOA and GPIOE so we can blink LEDs! */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPEEN);
/* Disable SWD - SWDIO PA13 is used for Green LED */
AFIO_MAPR = (AFIO_MAPR & ~AFIO_MAPR_SWJ_MASK) | AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_OFF;
/* Green LED - pin PA13 */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO13);
/* Pin to ground - LED lit */
gpio_clear(GPIOA, GPIO13);
/* Red LED - pin PE1 */
gpio_set_mode(GPIOE, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO1);
/* Pin to Vcc - LED down */
gpio_set(GPIOE, GPIO1);
}示例2: can_setup
void can_setup(void)
{
/* Enable peripheral clocks. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_CANEN);
AFIO_MAPR = AFIO_MAPR_CAN1_REMAP_PORTB;
/* Configure CAN pin: RX (input pull-up). */
gpio_set_mode(GPIOB, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_PULL_UPDOWN, GPIO_CAN1_PB_RX);
gpio_set(GPIOB, GPIO_CAN1_PB_RX);
/* Configure CAN pin: TX. */
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_CAN1_PB_TX);
/* NVIC setup. */
nvic_enable_irq(NVIC_USB_LP_CAN_RX0_IRQ);
nvic_set_priority(NVIC_USB_LP_CAN_RX0_IRQ, 1);
/* Reset CAN. */
can_reset(CAN1);
/* CAN cell init. */
if (can_init(CAN1,
false, /* TTCM: Time triggered comm mode? */
true, /* ABOM: Automatic bus-off management? */
false, /* AWUM: Automatic wakeup mode? */
false, /* NART: No automatic retransmission? */
false, /* RFLM: Receive FIFO locked mode? */
false, /* TXFP: Transmit FIFO priority? */
CAN_BTR_SJW_1TQ,
CAN_BTR_TS1_3TQ,
CAN_BTR_TS2_4TQ,
12)) /* BRP+1: Baud rate prescaler */
{
gpio_set(GPIOA, GPIO8); /* LED0 off */
gpio_set(GPIOB, GPIO4); /* LED1 off */
gpio_set(GPIOC, GPIO15); /* LED2 off */
gpio_clear(GPIOC, GPIO2); /* LED3 on */
gpio_set(GPIOC, GPIO5); /* LED4 off */
/* Die because we failed to initialize. */
while (1)
__asm__("nop");
}
/* CAN filter 0 init. */
can_filter_id_mask_32bit_init(CAN1,
0, /* Filter ID */
0, /* CAN ID */
0, /* CAN ID mask */
0, /* FIFO assignment (here: FIFO0) */
true); /* Enable the filter. */
/* Enable CAN RX interrupt. */
can_enable_irq(CAN1, CAN_IER_FMPIE0);
}示例3: gpio_setup
static void gpio_setup(void)
{
/* Enable GPIOA clock. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
/* Enable GPIOB clock. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
gpio_set(GPIOA, GPIO6); /* LED0 off */
gpio_set(GPIOA, GPIO7); /* LED1 off */
gpio_set(GPIOB, GPIO0); /* LED2 off */
gpio_set(GPIOB, GPIO1); /* LED3 off */
/* Set GPIO6/7 (in GPIO port A) to 'output push-pull' for the LEDs. */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO6);
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO7);
/* Set GPIO0/1 (in GPIO port B) to 'output push-pull' for the LEDs. */
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO0);
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO1);
}示例4: adc_setup
void adc_setup(void) {
//ADC
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_ADC12EN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_IOPAEN);
//ADC
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO0);
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1);
adc_off(ADC1);
adc_set_clk_prescale(ADC_CCR_CKMODE_DIV2);
adc_set_single_conversion_mode(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
/* We want to read the temperature sensor, so we have to enable it. */
adc_enable_temperature_sensor();
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR1_SMP_61DOT5CYC);
uint8_t channel_array[16];
channel_array[0]=16; // Vts (Internal temperature sensor
channel_array[0]=1; //ADC1_IN1 (PA0)
adc_set_regular_sequence(ADC1, 1, channel_array);
adc_set_resolution(ADC1, ADC_CFGR_RES_12_BIT);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
int i;
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
}示例5: board_init
static void
board_init(void)
{
/* fix up the max firmware size, we have to read memory to get this */
board_info.fw_size = APP_SIZE_MAX,
#ifdef INTERFACE_USB
/* enable GPIO9 with a pulldown to sniff VBUS */
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
gpio_mode_setup(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_PULLDOWN, GPIO9);
#endif
/* initialise LEDs */
rcc_peripheral_enable_clock(&RCC_AHB1ENR, BOARD_CLOCK_LEDS);
gpio_mode_setup(
BOARD_PORT_LEDS,
GPIO_MODE_OUTPUT,
GPIO_PUPD_NONE,
BOARD_PIN_LED_BOOTLOADER | BOARD_PIN_LED_ACTIVITY);
gpio_set_output_options(
BOARD_PORT_LEDS,
GPIO_OTYPE_PP,
GPIO_OSPEED_2MHZ,
BOARD_PIN_LED_BOOTLOADER | BOARD_PIN_LED_ACTIVITY);
BOARD_LED_ON (
BOARD_PORT_LEDS,
BOARD_PIN_LED_BOOTLOADER | BOARD_PIN_LED_ACTIVITY);
/* enable the power controller clock */
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_PWREN);
}示例6: CHAN_Init
void CHAN_Init()
{
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
ADC_Init();
/* configure channels for analog */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO0);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO1);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO2);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO3);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO4);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO5);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO6);
/* Enable Voltage measurement */
gpio_set_mode(GPIOB, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO0);
gpio_set_mode(GPIOB, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO1);
/* configure switches for digital I/O */
gpio_set_mode(GPIOC, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN,
GPIO0 | GPIO1 | GPIO2 | GPIO3 | GPIO4 |
GPIO5 | GPIO6 | GPIO7 | GPIO8 | GPIO9);
gpio_set(GPIOC,
GPIO0 | GPIO1 | GPIO2 | GPIO3 | GPIO4 |
GPIO5 | GPIO6 | GPIO7 | GPIO8 | GPIO9);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO8);
gpio_set(GPIOA, GPIO8);
}示例7: adc_init
//******************************* Para medir la tensión en los pines **********************************
void adc_init (void)
{
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN);
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN);
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1); //PA1 joint_1
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO2); //PA2 joint_2
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO3); //PA3 joint_3
gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1); //PC1 joint_4
gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO2); //PC2 joint_5
gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO5); //PC5 joint_6
adc_set_clk_prescale(ADC_CCR_ADCPRE_BY2);
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_set_sample_time(ADC1, ADC_CHANNEL1, ADC_SMPR_SMP_3CYC); //joint_1
adc_set_sample_time(ADC1, ADC_CHANNEL2, ADC_SMPR_SMP_3CYC); //joint_2
adc_set_sample_time(ADC1, ADC_CHANNEL3, ADC_SMPR_SMP_3CYC); //joint_3
adc_set_sample_time(ADC1, ADC_CHANNEL11, ADC_SMPR_SMP_3CYC); //joint_4
adc_set_sample_time(ADC1, ADC_CHANNEL12, ADC_SMPR_SMP_3CYC); //joint_5
adc_set_sample_time(ADC1, ADC_CHANNEL15, ADC_SMPR_SMP_3CYC); //joint_6
adc_set_multi_mode(ADC_CCR_MULTI_INDEPENDENT);
adc_power_on(ADC1);
//nvic_enable_irq(NVIC_ADC_IRQ);
//adc_enable_eoc_interrupt(ADC1);
//adc_disable_eoc_interrupt(ADC1);
}示例8: stm32_sdio_rcc_init
/*
* Set up the GPIO pins and peripheral clocks for the SDIO
* system. The code should probably take an option card detect
* pin, at the moment it uses the one used by the Embest board.
*/
static void stm32_sdio_rcc_init(void)
{
/* Enable clocks for SDIO and DMA2 */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_SDIOEN);
#ifdef WITH_DMA2
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_DMA2EN);
#endif
/* Setup GPIO Pins for SDIO:
PC8 - PC11 - DAT0 thru DAT3
PC12 - CLK
PD2 - CMD
*/
gpio_set_output_options(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_25MHZ, GPIO12 ); // All SDIO lines are push-pull, 25Mhz
gpio_set_output_options(GPIOC, GPIO_OTYPE_PP, GPIO_OSPEED_25MHZ, GPIO8 | GPIO9 | GPIO10 | GPIO11 ); // All SDIO lines are push-pull, 25Mhz
gpio_mode_setup(GPIOC, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO8 | GPIO9 | GPIO10 | GPIO11); // D0 - D3 enable pullups (bi-directional)
gpio_mode_setup(GPIOC, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO12); // CLK line no pullup
gpio_set_af(GPIOC, GPIO_AF12, GPIO8 | GPIO9 | GPIO10 | GPIO11 | GPIO12);
gpio_set_output_options(GPIOD, GPIO_OTYPE_PP, GPIO_OSPEED_25MHZ, GPIO2);
gpio_mode_setup(GPIOD, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO12 | GPIO15);
gpio_mode_setup(GPIOD, GPIO_MODE_AF, GPIO_PUPD_PULLUP, GPIO2);
gpio_set_af(GPIOD, GPIO_AF12, GPIO2);
#ifdef SDIO_HAS_CARD_DETECT
/* SDIO Card Detect pin on the Embest Baseboard */
/* PB15 as a hacked Card Detect (active LOW for card present) */
gpio_mode_setup(GPIOB, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, GPIO15);
#endif
}示例9: KeyInit
void KeyInit(void)
{
/* Enable AFIO */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN);
/* Remap GPIO_Remap_SWJ_JTAGDisable */
AFIO_MAPR |= AFIO_MAPR_SWJ_CFG_JTAG_OFF_SW_ON;
/* Enable GPIOB & GPIOE */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
// PortB 5 6 7 8 开漏输出
gpio_set_mode(KEY_COL_PORT, GPIO_MODE_OUTPUT_50_MHZ, GPIO_CNF_OUTPUT_OPENDRAIN, GPIO5 | GPIO6 | GPIO7 | GPIO8);
gpio_set(KEY_COL_PORT, GPIO5 | GPIO6| GPIO7 | GPIO8);
// PortC 6 7 8 9 上拉输入
gpio_set_mode(KEY_ROW_PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO6 | GPIO7 | GPIO8 | GPIO9);
gpio_set(KEY_ROW_PORT, GPIO6 | GPIO7 | GPIO8 | GPIO9);
//PortC 10 11上拉输入 HOLD FMOD
gpio_set_mode(KEY_SW_PORT, GPIO_MODE_INPUT, GPIO_CNF_INPUT_PULL_UPDOWN, GPIO10 | GPIO11);
gpio_set(KEY_SW_PORT, GPIO10 | GPIO11);
KeyFlush();
KeyStat=KeyScanOnce();//为开机检测按键取得按键状态
}示例10: adc_init_rcc
/* Configure and enable RCC for peripherals (ADC1, ADC2, Timer) */
static inline void adc_init_rcc( void )
{
#if defined (USE_AD1) || defined (USE_AD2)
uint32_t timer;
volatile uint32_t *rcc_apbenr;
uint32_t rcc_apb;
#if defined(USE_AD_TIM4)
timer = TIM4;
rcc_apbenr = &RCC_APB1ENR;
rcc_apb = RCC_APB1ENR_TIM4EN;
#elif defined(USE_AD_TIM1)
timer = TIM1;
rcc_apbenr = &RCC_APB2ENR;
rcc_apb = RCC_APB2ENR_TIM1EN;
#else
timer = TIM2;
rcc_apbenr = &RCC_APB1ENR;
rcc_apb = RCC_APB1ENR_TIM2EN;
#endif
/*
* Historic Note:
* Previously in libstm32 we were setting the ADC clock here.
* It was being set to PCLK2 DIV2 resulting in 36MHz clock on the ADC. I am
* pretty sure that this is wrong as based on the datasheet the ADC clock
* must not exceed 14MHz! Now the clock is being set by the clock init
* routine in libopencm3 so we don't have to set up this clock ourselves any
* more. This comment is here just as a reminder and may be removed in the
* future when we know that everything is working properly.
* (by Esden the historian :D)
*/
/* Timer peripheral clock enable. */
rcc_peripheral_enable_clock(rcc_apbenr, rcc_apb);
/* GPIO peripheral clock enable. */
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPBEN |
RCC_APB2ENR_IOPCEN);
/* Enable ADC peripheral clocks. */
#ifdef USE_AD1
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN);
#endif
#ifdef USE_AD2
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC2EN);
#endif
/* Time Base configuration */
timer_reset(timer);
timer_set_mode(timer, TIM_CR1_CKD_CK_INT,
TIM_CR1_CMS_EDGE, TIM_CR1_DIR_UP);
timer_set_period(timer, 0xFF);
timer_set_prescaler(timer, 0x8);
timer_set_clock_division(timer, 0x0);
/* Generate TRGO on every update. */
timer_set_master_mode(timer, TIM_CR2_MMS_UPDATE);
timer_enable_counter(timer);
#endif // defined (USE_AD1) || defined (USE_AD2)
}示例11: clock_setup
static void clock_setup(void)
{
/* Enable clocks on all the peripherals we are going to use. */
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_SPI2EN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_USART1EN);
rcc_peripheral_enable_clock(&RCC_AHB1ENR,
RCC_AHB1ENR_IOPCEN | RCC_AHB1ENR_IOPAEN | RCC_AHB1ENR_IOPBEN);
}示例12: lcdInit
void lcdInit() {
int i;
// hardware layout specific optimisations here
// if you change the pinout these need to be changed
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPAEN | RCC_APB2ENR_AFIOEN);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
// timer 2 for backlight dimming
rcc_peripheral_enable_clock(&RCC_APB1ENR, RCC_APB1ENR_TIM2EN);
gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_10_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL,
LCD_RST_PIN | LCD_E_PIN | LCD_RW_PIN | LCD_CS_PIN);
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_10_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL,
LCD_DC_PIN);
gpio_set_mode(LCD_BL_PORT, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, LCD_BL_PIN);
gpio_clear(LCD_RST_PORT, LCD_RST_PIN);
gpio_set(LCD_CS_PORT, LCD_CS_PIN);
gpio_set(LCD_DC_PORT, LCD_DC_PIN);
gpio_clear(LCD_RW_PORT, LCD_RW_PIN);
gpio_clear(LCD_E_PORT, LCD_E_PIN);
/* === Setup PWM peripherals for brightness === */
/* global settings for timer 1 */
TIM2_CR1 = TIM_CR1_CKD_CK_INT | TIM_CR1_CMS_EDGE;
TIM2_ARR = 65535;
TIM2_PSC = 0;
TIM2_EGR = TIM_EGR_UG;
/* timer 1 channel 2 (screen brightness) */
TIM2_CCMR2 |= TIM_CCMR2_OC3M_PWM1 | TIM_CCMR2_OC3PE;
TIM2_CCER |= TIM_CCER_CC3E;
TIM2_CCR3 = 0;
TIM2_CR1 |= TIM_CR1_ARPE;
TIM2_CR1 |= TIM_CR1_CEN;
// TIM2_BDTR |= TIM_BDTR_MOE;
for(i=0;i<10000;i++) {__asm__("nop\n\t");}
gpio_set(LCD_RST_PORT, LCD_RST_PIN);
for(i=0;i<10000;i++) {__asm__("nop\n\t");}
lcdCommand(LCD_BIAS_SEVENTH);
lcdCommand(LCD_DIRECTION_FWD);
lcdCommand(LCD_COMMON_FWD);
lcdCommand(LCD_VREG_SET);
lcdCommand(LCD_CONTRAST_HI);
lcdCommand(LCD_CONTRAST_LO(32));
lcdCommand(LCD_POWER_SETUP);
lcdCommand(LCD_DISPLAY_ON);
}示例13: platform_init
int platform_init(void)
{
rcc_clock_setup_hse_3v3(&hse_8mhz_3v3[CLOCK_3V3_168MHZ]);
/* Enable peripherals */
rcc_peripheral_enable_clock(&RCC_AHB2ENR, RCC_AHB2ENR_OTGFSEN);
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN);
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPBEN);
rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN);
/* Fix all flaoting pins*/
gpio_mode_setup(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_PULLDOWN,
0x1ff);
gpio_mode_setup(GPIOB, GPIO_MODE_INPUT, GPIO_PUPD_PULLDOWN,
0xffe2);
gpio_mode_setup(GPIOC, GPIO_MODE_INPUT, GPIO_PUPD_PULLDOWN,
0xf3ff);
/* Set up USB Pins and alternate function*/
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE,
GPIO9 | GPIO10| GPIO11 | GPIO12);
gpio_set_af(GPIOA, GPIO_AF10, GPIO9 | GPIO10| GPIO11 | GPIO12);
/* Set TMS/TCK/TDI to high speed*/
GPIOA_OSPEEDR &=~0xfc00;
GPIOA_OSPEEDR |= 0xa800;
gpio_mode_setup(JTAG_PORT, GPIO_MODE_OUTPUT,
GPIO_PUPD_NONE,
TMS_PIN | TCK_PIN | TDI_PIN);
gpio_mode_setup(TDO_PORT, GPIO_MODE_INPUT,
GPIO_PUPD_NONE,
TDO_PIN | TRST_PIN);
gpio_mode_setup(LED_PORT, GPIO_MODE_OUTPUT,
GPIO_PUPD_NONE,
LED_UART );
/* Setup heartbeat timer */
systick_set_clocksource(STK_CTRL_CLKSOURCE_AHB_DIV8);
systick_set_reload(168000000/(10*8)); /* Interrupt us at 10 Hz */
SCB_SHPR(11) &= ~((15 << 4) & 0xff);
SCB_SHPR(11) |= ((14 << 4) & 0xff);
systick_interrupt_enable();
systick_counter_enable();
usbuart_init();
SCB_VTOR = 0x10000; // Relocate interrupt vector table here
cdcacm_init();
jtag_scan(NULL);
return 0;
}示例14: ppm_arch_init
void ppm_arch_init ( void ) {
/* timer clock enable */
rcc_peripheral_enable_clock(PPM_RCC, PPM_PERIPHERAL);
/* GPIOA clock enable */
rcc_peripheral_enable_clock(&RCC_APB2ENR, PPM_GPIO_PERIPHERAL);
/* timer gpio configuration */
gpio_set_mode(PPM_GPIO_PORT, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, PPM_GPIO_PIN);
/* Time Base configuration */
timer_reset(PPM_TIMER);
timer_set_mode(PPM_TIMER, TIM_CR1_CKD_CK_INT,
TIM_CR1_CMS_EDGE, TIM_CR1_DIR_UP);
timer_set_period(PPM_TIMER, 0xFFFF);
/* run ppm timer at cpu freq / 9 = 8MHz */
timer_set_prescaler(PPM_TIMER, 8);
/* TIM configuration: Input Capture mode ---------------------
The Rising edge is used as active edge,
Intput pin is either PA1 or PA10
------------------------------------------------------------ */
#if defined PPM_PULSE_TYPE && PPM_PULSE_TYPE == PPM_PULSE_TYPE_POSITIVE
timer_ic_set_polarity(PPM_TIMER, PPM_CHANNEL, TIM_IC_RISING);
#elif defined PPM_PULSE_TYPE && PPM_PULSE_TYPE == PPM_PULSE_TYPE_NEGATIVE
timer_ic_set_polarity(PPM_TIMER, PPM_CHANNEL, TIM_IC_FALLING);
#else
#error "Unknown PM_PULSE_TYPE"
#endif
timer_ic_set_input(PPM_TIMER, PPM_CHANNEL, PPM_TIMER_INPUT);
timer_ic_set_prescaler(PPM_TIMER, PPM_CHANNEL, TIM_IC_PSC_OFF);
timer_ic_set_filter(PPM_TIMER, PPM_CHANNEL, TIM_IC_OFF);
/* Enable timer Interrupt(s). */
nvic_set_priority(PPM_IRQ, 2);
nvic_enable_irq(PPM_IRQ);
#ifdef PPM_IRQ2
nvic_set_priority(PPM_IRQ2, 2);
nvic_enable_irq(PPM_IRQ2);
#endif
/* Enable the CC2 and Update interrupt requests. */
timer_enable_irq(PPM_TIMER, PPM_IRQ_FLAGS);
/* Enable capture channel. */
timer_ic_enable(PPM_TIMER, PPM_CHANNEL);
/* TIM enable counter */
timer_enable_counter(PPM_TIMER);
ppm_last_pulse_time = 0;
ppm_cur_pulse = RADIO_CONTROL_NB_CHANNEL;
timer_rollover_cnt = 0;
}示例15: init_codec
void init_codec() {
/* enable clock for Aux power and power up the regulators */
rcc_peripheral_enable_clock(&CODEC_PWR_APB, CODEC_RCC_PWR);
gpio_set_mode(CODEC_PWR_PORT, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, CODEC_PWR);
gpio_set(CODEC_PWR_PORT, CODEC_PWR);
/* enable SPI1 clock */
rcc_peripheral_enable_clock(&CODEC_SPI_APB, CODEC_RCC_SPI);
/* enable clock for the chip select pin */
rcc_peripheral_enable_clock(&CODEC_IOS_APB, CODEC_RCC_IOS);
/* enable clock for the RST/DREQ lines */
rcc_peripheral_enable_clock(&CODEC_IOI_APB, CODEC_RCC_IOI);
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_AFIOEN);
/* set the pin modes for the SPI pins */
gpio_set_mode(CODEC_PORT, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, CODEC_CS);
gpio_set_mode(CODEC_PORT, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, CODEC_MOSI);
gpio_set_mode(CODEC_PORT, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, CODEC_SCK);
gpio_set_mode(CODEC_PORT, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, CODEC_MISO);
/* set the modes for the reset and busy pins */
gpio_set_mode(CODEC_RST_PORT, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, CODEC_RST);
gpio_set_mode(CODEC_DREQ_PORT, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, CODEC_DREQ);
gpio_clear(CODEC_RST_PORT, CODEC_RST);
/* configure the SPI port */
spi_set_unidirectional_mode(CODEC_SPI);
spi_disable_crc(CODEC_SPI);
spi_set_dff_8bit(CODEC_SPI);
spi_set_full_duplex_mode(CODEC_SPI);
spi_enable_software_slave_management(CODEC_SPI);
spi_set_nss_high(CODEC_SPI);
spi_set_baudrate_prescaler(CODEC_SPI, SPI_CR1_BR_FPCLK_DIV_32);
spi_set_master_mode(CODEC_SPI);
spi_send_msb_first(CODEC_SPI);
spi_set_clock_polarity_0(CODEC_SPI);
spi_set_clock_phase_0(CODEC_SPI);
spi_disable_ss_output(CODEC_SPI);
spi_enable(CODEC_SPI);
/* disable chip select */
gpio_set(CODEC_PORT, CODEC_CS);
/* make sure reset is not asserted */
gpio_set(CODEC_RST_PORT, CODEC_RST);
return;
}