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AN4099 数据表(PDF) 23 Page - STMicroelectronics

部件名 AN4099
功能描述  Implementing transmitters and receivers for infrared remote control protocols using STM32F0xx and STM32F3xx microcontrollers
PDF  39 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN4099 数据表(HTML) 23 Page - STMicroelectronics

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AN4099
Infrared receiver
Doc ID 023110 Rev 2
23/39
Figure 20.
RC5 solution flowchart
3.3.2
RC5 decoding library
The RC5 driver is very simple to use.
RC5_Init()
This function initializes the different peripherals (GPIO, TIMER,...).
RC5_ResetPacket()
This function sets the packet structure to the default state. This function is mainly called
in the TIM2_IRQHandler routine. It occurs each TIMER overflow to reset the RC5
packet.
RC5_Decode(RC5_Frame_TypeDef *rc5_frame)
This function is intended to be called in the user application. It decodes the RC5
received messages. The following structure contains the different values of the RC5
frame.
typedef struct
{
__IO uint8_t FieldBit;
/* Field bit field
*/
__IO uint8_t ToggleBit; /* Toggle bit field */
__IO uint8_t Address;
/* Address field
*/
__IO uint8_t Command;
/* Command field
*/
In itia li
Tim e r i
F a lli n g e d g e
Te st:
Hig h
pu ls e
La s t B it= 1
La s t B it= 0
2T
Te st:
Hig h
pu ls e
=T
=T



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