LPC MicrocontrollersのトピックRe: Fixed point calculation https://community.nxp.com/t5/LPC-Microcontrollers/Fixed-point-calculation/m-p/685574#M27619 <HTML><HEAD></HEAD><BODY><P>there are primitive operations for add, subtract, multiply.&nbsp; for division where the divisor is known at coding time, you can find a suitable X and Y where you can multiply by X and shift-right Y bits for division to needed accuracy.&nbsp; for division where the divisor is only known in realtime, you need a longer routine for division.&nbsp; there are some good example routines in "ARM System Developer's Guide" by Sloss et al.</P></BODY></HTML> Thu, 27 Jul 2017 17:44:40 GMT jeffreycasey 2017-07-27T17:44:40Z Fixed point calculation https://community.nxp.com/t5/LPC-Microcontrollers/Fixed-point-calculation/m-p/685573#M27618 <HTML><HEAD></HEAD><BODY><P>Is it possible to calculate Fixed point method in LPC824?<BR />Since Floating point calculation requires more time to execute.</P></BODY></HTML> Thu, 27 Jul 2017 04:46:48 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fixed-point-calculation/m-p/685573#M27618 ranjithshanbhag 2017-07-27T04:46:48Z Re: Fixed point calculation https://community.nxp.com/t5/LPC-Microcontrollers/Fixed-point-calculation/m-p/685574#M27619 <HTML><HEAD></HEAD><BODY><P>there are primitive operations for add, subtract, multiply.&nbsp; for division where the divisor is known at coding time, you can find a suitable X and Y where you can multiply by X and shift-right Y bits for division to needed accuracy.&nbsp; for division where the divisor is only known in realtime, you need a longer routine for division.&nbsp; there are some good example routines in "ARM System Developer's Guide" by Sloss et al.</P></BODY></HTML> Thu, 27 Jul 2017 17:44:40 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Fixed-point-calculation/m-p/685574#M27619 jeffreycasey 2017-07-27T17:44:40Z