UM1561 datasheet(16/39 Pages) STMICROELECTRONICS

16 / 39 page

Data sensing section for the closed loop control

UM1561

16/39

Doc ID 023556 Rev 1

}

return nRet;

}

where:

●

DS_GPIO_Configuration();

is (Configures the GPIO pins)

●

DS_TIMx_Configuration();

is (Configures the TIM8 timer)

●

DS_DMA_Configuration();

is (Configures the DMA)

●

DS_DMA_Configuration();

is (Configures the ADC).

DS_GPIO_Configuration(..):

The following GPIO pins are configured as “Analog Input” in order to connect the external

sensing section with the internal ADC.

/*************************************************************************

* Function Name

: GPIO_Configuration

* Description

: Configures the different GPIO ports for data sensing.

* Input

: None

* Output

: None

* Return

: None

*************************************************************************/

void DS_GPIO_Configuration(void)

{

/* Configure PC.0 PC.1 (ADC Channel10, 11) as analog input -----------*/

GPIO_InitStructure.GPIO_Pin

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;

GPIO_Init(GPIOC, &GPIO_InitStructure);

/*For Debug pourpouse*/

/* Configure Test Pin:PC9-----------------------------------*/

GPIO_InitStructure.GPIO_Pin

= GPIO_Pin_9;

GPIO_InitStructure.GPIO_Mode

= GPIO_Mode_Out_PP;

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init(GPIOC, &GPIO_InitStructure);

}

DS_TIMx_Configuration(..):

The DS_TIMx_Configuration includes the configuration code for the advanced timer TIM8

useful also for ADC triggering.

void DS_TIMx_Configuration(void)

{

TIM8 Configuration: PWM1 Mode

TIM_TimeBaseStructure.TIM_Period = ((DataSensing.Init.Counter) >> 1);

TIM_TimeBaseStructure.TIM_Prescaler = 0;

UM1561 датащи(PDF) 16 Page - STMicroelectronics

UM1561 датащи(HTML) 16 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

датащи скачать

ссылки URL