Title:
single-chip-infrared-decoding
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- 2012-11-26
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Description: 51 single-chip infrared remote control decoding
Infrared remote control transmitter chip PPM encoding, when the transmitter button is pressed, will launch the encoding of a group of 108ms pulse. The remote encoder pulse from the preamble, eight user codes and eight user codes Anti-code, eight opcode and the 8-bit opcode inverted. Test the user code, the action of each remote control can only control one device, so you can effectively prevent interference between multiple devices. Coded later encoded anti-code, used to test the code to receive the correctness, to prevent misuse, enhance system reliability. The preamble is the start of a remote control code by a 9ms low (start code) and a 4-5ms high (result code), as a data ready pulse. Pulse width 56ms, cycle 12ms combination of binary "0" pulse width is 1. 68ms cycle. The 24ms combination of that binary "1". If the button is pressed for more than 108ms yet to release the next launch of the code (fire code) will only start code (9m
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51单片机红外遥控程序.doc
