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yh · 2022-11-07

HiI found something strange in cmsis dsp source.I am using stm32f429 and LITTLE ENDIAN and cmsis dsp library V.1.5.1.in cmsis dsp library(arm_mult_q31.c) :void arm_mult_q31( q31_t * pSrcA, q31_t * pSrcB, q31_t * pDst, uint32_t blockSize){... whil...

yh · 2022-11-10

Thank you very much for your explanation. I will study more on this. Thank you.

yh · 2022-11-09

Thank you for your answers.I studied about Q(number format).I think this source is not working well.for example) in little endian:inA1 = 0x02;inB1 = 0x03;(in original source) out1 = ((q63_t)inA1 * inB1) >> 32; =>(0x00000000 00000006 >> 32) => 0x0...

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I have a question about cmsis dsp lib source.((arm_mult_q31.c)

Re: I have a question about cmsis dsp lib source.((arm_mult_q31.c)

Re: I have a question about cmsis dsp lib source.((arm_mult_q31.c)