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テストモード追加、LED有効化 left -> SerialRX, Data Recieve Complete , Serial Tx , Light Tx
Dependencies: XBee mbed NetServicesMin
Diff: frame_layer/culc_crc16.cpp
- Revision:
- 0:42adca80439c
diff -r 000000000000 -r 42adca80439c frame_layer/culc_crc16.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/frame_layer/culc_crc16.cpp Thu Mar 22 12:40:48 2012 +0000 @@ -0,0 +1,27 @@ +#include "mbed.h" +#include "types.h" +#include "config.h" +#include "culc_crc16.h" + +unsigned int One_Byte_CRC16_Calc (uint16_t crc , uint8_t data) +{ + // DBG("++++++++++++ CRC culc start initial CRC:%04X DATA:%04X\n",crc,data); + for (int i = 0; i < 8; ++i) + { + if ((crc / 0x7fff) ^ (data & 0x01)) // Ex-OR input LSB first + { + crc = crc ^ 0x4002; // 0100 0000 0000 0010 << 1 + crc = crc << 1; + crc ++; + } + else + { + // crc = crc *2; // left shift + crc = crc << 1; + } + // TEMP = TEMP/2; // right shift + data = data >> 1; + } + // DBG("************** CRC culc result CRC:%04X\n",crc); + return crc; +}