658 lines
16 KiB
C
Executable File
658 lines
16 KiB
C
Executable File
#include "sdbp.h"
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#include "tdgnss.h"
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int BaudsArray[8] = {4800,4800,9600,19200,38400,57600,115200,230400};
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byte sync_head[2] = {0x23,0x3E};
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ID ackID = { 0x01, 0x01 };
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ID nackID = { 0x01, 0x02 };
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ID enterID = { 0xA0, 0x01 };
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ID confirmID = { 0xA0, 0x02 };
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ID eraseID = { 0xA0, 0x03 };
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ID writeID = { 0xA0, 0x04 };
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ID rebootID = { 0xA0, 0x05 };
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ID uartID = { 0x03, 0x21 };
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ID verID = { 0x05, 0x01 };
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static void InputNoData(ID id)
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{
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byte buf[10];
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int len;
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int fc = 0;
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buf[0] = 0x23;
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buf[1] = 0x3E;
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buf[2] = id.type;
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buf[3] = id.funcode;
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buf[4] = 0x00;
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buf[5] = 0x00;
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fc = FletCher16_sdbp(buf, 2, 4);
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buf[6] = (byte)fc;
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buf[7] = (byte)(fc >> 8);
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len = 8;
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TxData(buf, len);
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}
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int FletCher16_sdbp(byte* buffer, int offset, int count)
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{
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byte fc1=0,fc2=0;
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int i;
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for (i = 0; i < count; i++)
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{
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fc1 += buffer[offset+i];
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fc2 += fc1;
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}
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return (fc2 << 8) + (fc1 & 0xFF);
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}
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//check the buf is a correct SDBP message or not
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int GetFirstSyncFrame(byte* bufRead, int len, int* head, int* tail)
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{
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int i;
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int len_f =0 ;
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int fc = 0;
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if (len <0)
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return 0;
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for (i = 0; i <= len; i++)
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{
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if(bufRead[i] == sync_head[0] && (bufRead[i+1] == sync_head[1]))
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{
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len_f = bufRead[i+4] + (bufRead[i+5] <<8);
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fc=bufRead[i+6+len_f] + (bufRead[i+6+len_f+1] <<8);
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if(FletCher16_sdbp((byte*)bufRead,i+2,len_f+4) == fc)
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{
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*head = i;
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*tail = i+6+len_f+2;
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return 1;
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}
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}
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}
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return 0;
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}
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byte CheckImgFile(const byte *filedatas, int startpoint, int filelen)
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{
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if(filedatas == NULL || startpoint < 0 || filelen < IMGFILE_HEADREAR_LEN)
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return 0;
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if(filedatas[startpoint] != 0x14 || filedatas[startpoint + 1] != 0x56 || filedatas[startpoint + 2] != 0x10 || filedatas[startpoint + 3] != 0x70)
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{
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return 0;
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}
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return 1;
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}
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byte CheckImgData1(const byte *filedatas, int startpoint, int filelen)
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{
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if(filedatas == NULL || startpoint < 0 || filelen < IMGFILE_HEADREAR_LEN)
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return 0;
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if(filedatas[startpoint] != 0x14 || filedatas[startpoint + 1] != 0x56 || filedatas[startpoint + 2] != 0x11 || filedatas[startpoint + 3] != 0x11)
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{
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return 0;
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}
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return 1;
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}
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byte CheckImgData2(const byte *filedatas, int startpoint, int filelen)
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{
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if(filedatas == NULL || startpoint < 0 || filelen < IMGFILE_HEADREAR_LEN)
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return 0;
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if(filedatas[startpoint] != 0x14 || filedatas[startpoint + 1] != 0x56 || filedatas[startpoint + 2] != 0x22 || filedatas[startpoint + 3] != 0x22)
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{
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return 0;
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}
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return 1;
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}
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/*
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*
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* SDBP FUNC
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*
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*/
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int SDBP_PUB_ACK(byte* bufRead, ID id,int idx)
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{
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if(idx <0)
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return 0;
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if(bufRead[idx+2] != 0x01 || bufRead[idx+3] != 0x01)
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return 0;
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if(bufRead[idx+6] == id.type && bufRead[idx+7] == id.funcode)
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return 1;
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return 0;
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}
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int SDBP_PUB_NACK(byte* bufRead, ID id,int idx)
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{
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if(idx <0)
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return 0;
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if(bufRead[idx+2] != nackID.type || bufRead[idx+3] != nackID.funcode)
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return 0;
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if(bufRead[idx+6] == id.type && bufRead[idx+7] == id.funcode)
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return 1;
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return 0;
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}
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int SDBP_NACK(byte* bufRead, int idx)
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{
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if (idx < 0)
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return 0;
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if (bufRead[idx + 2] == nackID.type || bufRead[idx + 3] == nackID.funcode)
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return 1;
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return 0;
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}
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void SDBP_UPD_ENTER(void)
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{
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InputNoData(enterID);
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usleep(100000);//100 ms
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}
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void SDBP_UPD_CONFIRM_I(void)
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{
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InputNoData(confirmID);
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}
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int SDBP_UPD_CONFIRM_O(byte* bufRead, int idx)
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{
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if(idx <0)
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return 0;
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if(bufRead[idx+2] != confirmID.type || bufRead[idx+3] != confirmID.funcode)
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return 0;
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if(bufRead[idx+6])
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return 0;
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else
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return 1;
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}
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void SDBP_CANCEL_PROTECT_I_C1()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x10;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x01;
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bufWrite[14] = 0x00;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xCB;
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bufWrite[18] = 0xBE;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C2()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x0C;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x01;
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bufWrite[14] = 0x00;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xC7;
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bufWrite[18] = 0x9A;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C3()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x1C;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x06;
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bufWrite[14] = 0x00;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xDC;
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bufWrite[18] = 0x3E;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C4()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x1C;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x01;
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bufWrite[14] = 0x00;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xD7;
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bufWrite[18] = 0x2A;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C5()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x1C;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x00;
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bufWrite[14] = 0x00;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xD6;
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bufWrite[18] = 0x26;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C6()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x1C;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x05;
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bufWrite[14] = 0x00;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xDB;
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bufWrite[18] = 0x3A;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C7()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x04;
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bufWrite[4] = 0x0B;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x1C;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0x00;
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bufWrite[14] = 0x01;
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bufWrite[15] = 0x00;
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bufWrite[16] = 0x00;
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bufWrite[17] = 0xD7;
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bufWrite[18] = 0x29;
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int iLenToWrite = 19;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_CANCEL_PROTECT_I_C8()
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{
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0xBE;
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bufWrite[3] = 0x03;
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bufWrite[4] = 0x07;
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bufWrite[5] = 0x00;
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bufWrite[6] = 0x47;
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bufWrite[7] = 0x44;
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bufWrite[8] = 0x20;
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bufWrite[9] = 0x20;
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bufWrite[10] = 0x01;
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bufWrite[11] = 0x40;
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bufWrite[12] = 0x01;
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bufWrite[13] = 0xD5;
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bufWrite[14] = 0xB4;
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int iLenToWrite = 15;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_UPD_ERASE_I1(void)
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{
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InputNoData(eraseID);
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}
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void SDBP_UPD_ERASE_I2(int num)
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{
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int iLenToWrite;
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int fc = 0;
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = eraseID.type;
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bufWrite[3] = eraseID.funcode;
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bufWrite[4] = 0x02;
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bufWrite[5] = 0x00;
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bufWrite[6] = (byte)num;
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bufWrite[7] = (byte)(num>>8);
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fc = FletCher16_sdbp(bufWrite, 2,6);
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bufWrite[8] = (byte)fc;
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bufWrite[9] = (byte)(fc >> 8);
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iLenToWrite = 10;
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TxData(bufWrite, iLenToWrite);
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}
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int SDBP_UPD_ERASE_O1(byte* bufRead, int idx)
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{
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if (idx < 0)
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return 0;
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if (bufRead[idx + 2] != eraseID.type || bufRead[idx + 3] != eraseID.funcode)
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return 0;
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if(bufRead[idx + 6])
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return 0;
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else
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return 1;
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}
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int SDBP_UPD_ERASE_O2(byte* bufRead, int idx, int num)
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{
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(void)num;
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if (idx < 0)
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return -1;
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if (bufRead[idx + 2] != eraseID.type || bufRead[idx + 3] != eraseID.funcode)
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return -1;
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num = bufRead[idx + 7] + (bufRead[idx + 8]<<8);
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return bufRead[idx + 6];
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}
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int SDBP_UPD_WRITE_I(byte* datas,int offset,int datalen)
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{
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int sum = 0;
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int i;
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int iLenToWrite;
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for (i = 0; i < datalen; i++)
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{
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sum+=datas[i+offset] ;
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}
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if (sum == datalen * 0xff)
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{
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return 0;
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}
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int fc = 0;
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = writeID.type ;
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bufWrite[3] = writeID.funcode;
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bufWrite[4] = (byte)(datalen+6);
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bufWrite[5] = (byte)((datalen+6) >> 8);
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bufWrite[6] = (byte)offset;
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bufWrite[7] = (byte)(offset >> 8);
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bufWrite[8] = (byte)(offset>>16);
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bufWrite[9] = (byte)(offset >>24);
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bufWrite[10] = (byte)datalen;
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bufWrite[11] = (byte)(datalen >> 8);
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// Array.Copy(datas, offset, bufWrite, 12,datalen);
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memcpy(&bufWrite[12],&datas[offset],datalen);
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fc = FletCher16_sdbp(bufWrite, 2, datalen+10);
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bufWrite[datalen + 12] = (byte)fc;
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bufWrite[datalen + 13] = (byte)(fc >> 8);
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iLenToWrite = datalen+14;
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TxData(bufWrite, iLenToWrite);
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return 1;
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}
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int SDBP_UPD_WRITE_O(byte* bufRead, int idx)
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{
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if (idx < 0)
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return -1;
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if (bufRead[idx + 2] != writeID.type || bufRead[idx + 3] != writeID.funcode)
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return -1;
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if(bufRead[idx + 6])
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return 0;
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else
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return 1;
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}
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void SDBP_CFG_UART_I(UARTPara uartpara,byte autosave)
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{
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int iLenToWrite;
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int fc = 0;
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bufWrite[0] = 0x23;
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bufWrite[1] = 0x3E;
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bufWrite[2] = 0x03;
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bufWrite[3] = 0x21;
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bufWrite[4] = 0x06;
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bufWrite[5] = 0x00;
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bufWrite[6] = uartpara.com;
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bufWrite[7] = uartpara.baudrate;
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bufWrite[8] = uartpara.databit;
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bufWrite[9] = uartpara.stopbit;
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bufWrite[10] = uartpara.checkbit;
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bufWrite[11] = autosave;
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fc = FletCher16_sdbp(bufWrite, 2, 10);
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bufWrite[12] = (byte)fc;
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bufWrite[13] = (byte)(fc >> 8);
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iLenToWrite = 14;
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TxData(bufWrite, iLenToWrite);
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}
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void SDBP_UPD_REBOOT()
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{
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InputNoData(rebootID);
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}
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void SDBP_DBG_FLASH_I(int offset,int num)
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{
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int iLenToWrite;
|
|
int fc = 0;
|
|
bufWrite[0] = 0x23;
|
|
bufWrite[1] = 0x3E;
|
|
bufWrite[2] = 0xBE;
|
|
bufWrite[3] = 0x08;
|
|
bufWrite[4] = 0x08;
|
|
bufWrite[5] = 0x00;
|
|
bufWrite[6] =0x47;
|
|
bufWrite[7] =0x44;
|
|
bufWrite[8] = (byte)(offset);
|
|
bufWrite[9] = (byte)(offset>>8);
|
|
bufWrite[10] = (byte)(offset>>16);
|
|
bufWrite[11] = (byte)(offset >> 24);
|
|
bufWrite[12] = (byte)(num);
|
|
bufWrite[13] = (byte)(num>>8);
|
|
fc = FletCher16_sdbp(bufWrite, 2, 12);
|
|
bufWrite[14] = (byte)fc;
|
|
bufWrite[15] = (byte)(fc >> 8);
|
|
iLenToWrite = 16;
|
|
TxData(bufWrite, iLenToWrite);
|
|
}
|
|
|
|
|
|
int SDBP_DBG_FLASH_O(byte* bufRead, int idx,byte* datas,int offset, int len)
|
|
{
|
|
if (idx < 0)
|
|
return -1;
|
|
int offset1 = bufRead[idx + 6] + (bufRead[idx + 7] << 8) +
|
|
(bufRead[idx + 8] << 16) + (bufRead[idx + 9] << 24);
|
|
int len1 = bufRead[idx +10] + (bufRead[idx + 11] << 8);
|
|
if (offset1 != offset || len != len1)
|
|
return -1;
|
|
memcpy(&datas[offset],&bufRead[idx + 12],len);
|
|
return len;
|
|
}
|
|
|
|
void SDBP_QUE_VER_I(void)
|
|
{
|
|
InputNoData(verID);
|
|
}
|
|
|
|
int SDBP_QUE_VER_O(byte* bufRead, int idx)
|
|
{
|
|
int len;
|
|
|
|
if (idx < 0)
|
|
return 0;
|
|
if (bufRead[idx + 2] != verID.type || bufRead[idx + 3] != verID.funcode)
|
|
return 0;
|
|
len = bufRead[idx +4] + (bufRead[idx +5] <<8);
|
|
if(len>150)
|
|
return 0;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
unsigned char CRC16TabH[256] =
|
|
{
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
|
|
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
|
|
};
|
|
|
|
unsigned char CRC16TabL[256] =
|
|
{
|
|
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2,
|
|
0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04,
|
|
0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E,
|
|
0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09, 0x08, 0xC8,
|
|
0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
|
|
0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC,
|
|
0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6,
|
|
0xD2, 0x12, 0x13, 0xD3, 0x11, 0xD1, 0xD0, 0x10,
|
|
0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32,
|
|
0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
|
|
0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE,
|
|
0xFA, 0x3A, 0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38,
|
|
0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA,
|
|
0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C,
|
|
0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
|
|
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0,
|
|
0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62,
|
|
0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4,
|
|
0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F, 0x6E, 0xAE,
|
|
0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
|
|
0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA,
|
|
0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C,
|
|
0xB4, 0x74, 0x75, 0xB5, 0x77, 0xB7, 0xB6, 0x76,
|
|
0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0,
|
|
0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
|
|
0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54,
|
|
0x9C, 0x5C, 0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E,
|
|
0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98,
|
|
0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A,
|
|
0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
|
|
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86,
|
|
0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80, 0x40
|
|
};
|
|
|
|
unsigned short CalcCRC16(const char *datas, int startpoint, int len)
|
|
{
|
|
unsigned short crc = 0;
|
|
unsigned char crc_h = 0;
|
|
unsigned char crc_l = 0;
|
|
unsigned char tmp;
|
|
int len_all = len + startpoint;
|
|
int i;
|
|
|
|
if(startpoint < 0 )
|
|
return 0;
|
|
|
|
|
|
for (i = startpoint; i < len_all; i++)
|
|
{
|
|
tmp = crc_h ^ datas[i];
|
|
crc_h = crc_l ^ CRC16TabH[tmp];
|
|
crc_l = CRC16TabL[tmp];
|
|
}
|
|
|
|
crc = (((unsigned short) crc_h) << 8) + (unsigned short)crc_l;
|
|
|
|
return crc;
|
|
}
|
|
|