TH3和TL3读写操作遵循以下顺序: 写操作:先低位后高位 读操作:先高位后低位 System Clock T3 32.768kHz Crystal 00 01 10 T3CLKS[1:0] 0:Switch Off TR3 1:Switch On T3PS[1:0] Prescaler 1,8,64,256 Increment Mode 16-bit Counter Interrupt Request TF3 Overflow Flag TL3 TH3 The Block Diagram ...
c #include "stm32f4xx_hal.h" ADC_HandleTypeDef hadc1; void MX_ADC1_Init(void) { ADC_ChannelConfTypeDef sConfig = {0}; hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV8; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.ScanConvMode = DISABLE; ...
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div4; // 禁止DMA直接访问模式 ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled; // 采样时间间隔 ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_20Cycles; ADC_CommonInit(&ADC_CommonInitStructure); // ---...
{while(1) {printf("task2 entry\r\n");//GPIO_ResetBits(GPIOA, GPIO_Pin_2);//vTaskDelay(500);//GPIO_SetBits(GPIOA, GPIO_Pin_2);//vTaskDelay(500);while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC )); ADC_ClearFlag( ADC1, ADC_FLAG_EOC);while(!ADC_GetFlagStatus(ADC1, ADC_FLAG...
Several prescalers allow the configuration of the three AHB buses, the high-speed APB (APB2) and the low-speed APB (APB1) domains. The maximum frequency of the three AHB DS11580 Rev 8 23/210 43 Functional overview STM32F423xH buses and high-speed APB domains is 100 MHz. The maximum...
adc_set_ref_voltage(ADC_MISC_CHN, ADC_VREF_1P2V); adc_set_tsample_cycle_chn_misc(SAMPLING_CYCLES_6); adc_set_ain_pre_scaler(ADC_PRESCALER_1F8); // adc_power_on_sar_adc(1); } // Process takes about 83 μs. _attribute_ram_code_ uint16_t get_battery_mv(void) { _attribute_...
Timer feature comparison Counter type Prescaler factor DMA request generation Capture/compare channels Complementary outputs Up, down, up/down Up, down, up/down Up Up Any integer between 1 and 65536 Any integer between 1 and 65536 Any ...
(4,625); //与分频数为64,重载值为625,溢出时间为1s /*窗口看门狗配置*/ WWDG_Init(0X7F,0X5F,WWDG_Prescaler_8);//计数器值为7f,窗口寄存器为5f,分频数为8 #endif // TIM3_PWM_Init(899,0); //不分频。PWM频率=72000000/900=80Khz } //=== // 实现功能: LED测试函数 // 函数说明: PB5...
System Clock T3 128kHzRC 00 01 10 T3CLKS[1:0] 0:Switch Off TR3 1:Switch On T3PS[1:0] Prescaler 1,8,64,256 Increment Mode 16-bit Counter Interrupt Request TF3 Overflow Flag TL3 TH3 The Block Diagram of Timer3 定时器3可以工作在掉电模式. 但如果T3CLKS[1:0]为00,定时器3不能工作...
模块 PWM,寄存器: Period (DxBxxDR1),组 0 位7 6 5 4 3 2 1 0 值 PrescalerPeriod PrescalerPeriod 由具有相同名称的用户模块参数控制. Table 69. 模块 PWM,寄存器: Compare (DxBxxDR2),组 0 位7 6 5 4 3 2 1 0 值 比较 由 API 根据参考用户模块参数保持该寄存器的值. 带有...