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AN4099 датащи(PDF) 25 Page - STMicroelectronics

номер детали AN4099
подробное описание детали  Implementing transmitters and receivers for infrared remote control protocols using STM32F0xx and STM32F3xx microcontrollers
PDF  39 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4099 датащи(HTML) 25 Page - STMicroelectronics

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AN4099
Infrared receiver
Doc ID 023110 Rev 2
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}
Note:
1
TIMx_IRQHandler ISRs are coded within the stm32f0xx_it.c or stm32f3xx_it.c
●
If you are using one or both interrupts in your application you have to proceed carefully:
–
either add your application code in these ISRs, or
–
copy the contents of these ISRs in your application code.
2
You can easily tailor this application to your own hardware using different define declarations
inside the "ir_decode.h" file. Refer to the following Table
Table 4.
Example of implementation
Define name
Description
STM32F0xx
STM32F30x
STM32F37x
#define IR_TIM
Timer used for IR
decoding(1)
TIM2
TIM1
TIM3
#define
TIM_PRESCALER
TIM prescaler
This parameter is
computed so as to
have 1 us as time
base. TIM frequency
(MHz) / (prescaler +
1)
47
71
71
#define IR_TIM_CLK
APB clock of the
used timer
RCC_APB1Periph_
TIM2
RCC_APB2Periph_
TIM1
RCC_APB1Periph_
TIM3
#define IR_TIM_IRQn
IR TIM IRQ
TIM2_IRQn
TIM1_CC_IRQn
TIM3_IRQn
#define
IR_TIM_Channel
IR TIM channel
TIM_Channel_2
TIM_Channel_2
TIM_Channel_2
#define
IR_GPIO_PORT
Port which IR output
is connected(1)
GPIOB
GPIOA
GPIOB
#define
IR_GPIO_PORT_CLK
IR pin GPIO clock
port
RCC_APB2Periph_
GPIOB
RCC_AHBPeriph_
GPIOA
RCC_AHBPeriph_
GPIOB
#define IR_GPIO_PIN
Pin which IR is
connected(1)
GPIO_Pin_3
GPIO_Pin_9
GPIO_Pin_5
1.
For more details on the available STM32 resources, refer to your product datasheet.



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