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MDP200 Datasheet_V1.3

April 2018

11/12

8

Foot Print

9

Ordering Information

Options

Ranges

Calibration

Housing

MDP200

-500

500Pa

B

Bi-Directional

T

Manifold

U

Uni-Directional

Y

Barb

Example: MDP200-500BY = MDP200 differential pressure sensor, 500 Pascal, Bi-Directional,

Barb Fitting

10

Appendix

Master’s CRC calculation C code

#define POLYNOMIAL 0x131 // P(x) = x^8 + x^5 + x^4 + 1 = 100110001

unsigned char CheckCrc(unsigned char data[], unsigned char nbrOfBytes)

{

unsigned char crc = 0;

unsigned char byteCtr;

//calculates 8-Bit checksum with given polynomial P(x) = x^8 + x^5 + x^4 + 1 =

100110001

for (byteCtr = 0; byteCtr < nbrOfBytes; ++byteCtr)

{

crc ^= (data[byteCtr]);

for (unsigned char bit = 8; bit > 0; --bit)

{

if (crc & 0x80)

crc = (crc << 1) ^ POLYNOMIAL;

else crc = (crc << 1);

}

}

return crc;

}