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Chive

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  1. Już zrobiłem. napisałem funkcję obliczania CRC dla tego napędu i działa. Already done. I wrote a function for calculating the CRC for the drive and it works.
  2. I have Unitronics V560 and EZi servo from http://www.fastech.c...unction_Eng.pdf I make communication with EZi over RS485, and always i receive error. For example, i send simply command: AA CC 00 05 [crc] AA EE and always i receive error AA CC 00 05 82 [crc] AA EE 82 is dec 130 Received Frame Error : Frame data received is out of this specification. I think the problem is the configuration of the CRC. I testing several other configurations and always nothing. How i have make configuration of CRC for good communication with EZi drive ??? Thanks for help. This is C++ algorithm for CRC calc: //============================================================================== // System Name: // // File Name: CRC_Checksum.c // // Description: CRC calculation function // // // Originator: // //########################################################################### // // Ver | dd mmmm yyyy | Who | Description of changes // =====|==============|======|=============================================== // 0.01| xx xxxx xxxx | A.A. | // 0.02| 25 June 2009 | JH | added CRC computation by algorithm. // 0.03| 25 June 2009 | JH | changed CRC computation by table to 2bytes base. //########################################################################### /* Table Of CRC Values */ const unsigned short TABLE_CRCVALUE[] = { 0X0000, 0XC0C1, 0XC181, 0X0140, 0XC301, 0X03C0, 0X0280, 0XC241, 0XC601, 0X06C0, 0X0780, 0XC741, 0X0500, 0XC5C1, 0XC481, 0X0440, 0XCC01, 0X0CC0, 0X0D80, 0XCD41, 0X0F00, 0XCFC1, 0XCE81, 0X0E40, 0X0A00, 0XCAC1, 0XCB81, 0X0B40, 0XC901, 0X09C0, 0X0880, 0XC841, 0XD801, 0X18C0, 0X1980, 0XD941, 0X1B00, 0XDBC1, 0XDA81, 0X1A40, 0X1E00, 0XDEC1, 0XDF81, 0X1F40, 0XDD01, 0X1DC0, 0X1C80, 0XDC41, 0X1400, 0XD4C1, 0XD581, 0X1540, 0XD701, 0X17C0, 0X1680, 0XD641, 0XD201, 0X12C0, 0X1380, 0XD341, 0X1100, 0XD1C1, 0XD081, 0X1040, 0XF001, 0X30C0, 0X3180, 0XF141, 0X3300, 0XF3C1, 0XF281, 0X3240, 0X3600, 0XF6C1, 0XF781, 0X3740, 0XF501, 0X35C0, 0X3480, 0XF441, 0X3C00, 0XFCC1, 0XFD81, 0X3D40, 0XFF01, 0X3FC0, 0X3E80, 0XFE41, 0XFA01, 0X3AC0, 0X3B80, 0XFB41, 0X3900, 0XF9C1, 0XF881, 0X3840, 0X2800, 0XE8C1, 0XE981, 0X2940, 0XEB01, 0X2BC0, 0X2A80, 0XEA41, 0XEE01, 0X2EC0, 0X2F80, 0XEF41, 0X2D00, 0XEDC1, 0XEC81, 0X2C40, 0XE401, 0X24C0, 0X2580, 0XE541, 0X2700, 0XE7C1, 0XE681, 0X2640, 0X2200, 0XE2C1, 0XE381, 0X2340, 0XE101, 0X21C0, 0X2080, 0XE041, 0XA001, 0X60C0, 0X6180, 0XA141, 0X6300, 0XA3C1, 0XA281, 0X6240, 0X6600, 0XA6C1, 0XA781, 0X6740, 0XA501, 0X65C0, 0X6480, 0XA441, 0X6C00, 0XACC1, 0XAD81, 0X6D40, 0XAF01, 0X6FC0, 0X6E80, 0XAE41, 0XAA01, 0X6AC0, 0X6B80, 0XAB41, 0X6900, 0XA9C1, 0XA881, 0X6840, 0X7800, 0XB8C1, 0XB981, 0X7940, 0XBB01, 0X7BC0, 0X7A80, 0XBA41, 0XBE01, 0X7EC0, 0X7F80, 0XBF41, 0X7D00, 0XBDC1, 0XBC81, 0X7C40, 0XB401, 0X74C0, 0X7580, 0XB541, 0X7700, 0XB7C1, 0XB681, 0X7640, 0X7200, 0XB2C1, 0XB381, 0X7340, 0XB101, 0X71C0, 0X7080, 0XB041, 0X5000, 0X90C1, 0X9181, 0X5140, 0X9301, 0X53C0, 0X5280, 0X9241, 0X9601, 0X56C0, 0X5780, 0X9741, 0X5500, 0X95C1, 0X9481, 0X5440, 0X9C01, 0X5CC0, 0X5D80, 0X9D41, 0X5F00, 0X9FC1, 0X9E81, 0X5E40, 0X5A00, 0X9AC1, 0X9B81, 0X5B40, 0X9901, 0X59C0, 0X5880, 0X9841, 0X8801, 0X48C0, 0X4980, 0X8941, 0X4B00, 0X8BC1, 0X8A81, 0X4A40, 0X4E00, 0X8EC1, 0X8F81, 0X4F40, 0X8D01, 0X4DC0, 0X4C80, 0X8C41, 0X4400, 0X84C1, 0X8581, 0X4540, 0X8701, 0X47C0, 0X4680, 0X8641, 0X8201, 0X42C0, 0X4380, 0X8341, 0X4100, 0X81C1, 0X8081, 0X4040 }; unsigned short CalcCRC(unsigned char* pDataBuffer, unsigned long usDataLen) { unsigned char nTemp; unsigned short wCRCWord = 0xFFFF; while (usDataLen--) { nTemp = wCRCWord ^ *(pDataBuffer++); wCRCWord >>= 8; wCRCWord ^= TABLE_CRCVALUE[nTemp]; } return wCRCWord; } unsigned short CalcCRCbyAlgorithm(unsigned char* pDataBuffer, unsigned long usDataLen) { // Use the Modbus algorithm as detailed in the Watlow comms guide const unsigned short POLYNOMIAL = 0xA001; unsigned short wCrc; int iByte, iBit; /* Initialize CRC */ wCrc = 0xffff; for (iByte = 0; iByte < usDataLen; iByte++) { /* Exclusive-OR the byte with the CRC */ wCrc ^= *(pDataBuffer + iByte); /* Loop through all 8 data bits */ for (iBit = 0; iBit <= 7; iBit++) { /* If the LSB is 1, shift the CRC and XOR the polynomial mask with the CRC */ // Note - the bit test is performed before the rotation, so can't move the << here if (wCrc & 0x0001) { wCrc >>= 1; wCrc ^= POLYNOMIAL; } else { // Just rotate it wCrc >>= 1; } } } return wCrc; } //=========================================================================== // end of file //===========================================================================
  3. I have problem with command "Write SD delimited line". If i compile program i have a error 65 - busy bit missing. Where is problem?
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