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reading from a digital accelermoter's multiple sensors
Topic last updated 07 Feb 2012, by 
hassan ali.
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hassan ali.
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Hi every body ... I 'm working on a project where i need to interface the MMA7445L accelerometer with mbed. My problem is that i need to read the 10 bit readings found in X_OUT_LSB, X_OUT_MSB,Y_OUT_LSB,Y_OUT_MSB,Z_OUT_LSB, Z_OUT_MSB, but i don't know how to do it ! i tried to read each register by itself and merge them in one 16-bit interger, but i have a problem with understanding "2's complement" concept, so i don't know how to get the negative acceleration values .... can anyone tell me how i can read from the two registers to get the final acceleration?? thank you in advance.