MSP430FR6047: MCO018

Anup Kumar

Prodigy 240 points

Part Number: MSP430FR6047

Tool/software:

Hi,

I am using MSP430FR6047 board, It contains IQ math libraries I also have the respective document.

My question is:

1.) When I say IQ16 format for a number then according to IQ Math document 16 bits for the integer part & 16 for decimal part. Is it correct?

2.) But I have seen that If a number is in IQ16 format then to get actual number I will simply divide IQ16 format number by 2^16 or right shift by 16. Is it Ok?

3.) The above two points are conflicting about need to IQ math lib.

Regards,

Anup Kumar.

over 1 year ago

0 Cash Hao11 over 1 year ago

TI__Mastermind 46765 points

Hi,

1. No, it is not correct. Let's say a IQ16 data is 0x11. It represents an actual value of 3/2^16 = 0.0000457

Best regards,

Cash Hao

0 Anup Kumar over 1 year ago in reply to Cash Hao11

Prodigy 240 points

Hi Hao,

But What I have observed that When code says a number represented in IQ 16 format say in IQ 16 a number is int32 num = 4532.

Now if I want it in float or in integer then it simply will be 4532/2^16 = 0.0691528.

Thanks,

Anup Kumar

0 Cash Hao11 over 1 year ago in reply to Anup Kumar

TI__Mastermind 46765 points

Anup Kumar said:
Now if I want it in float or in integer then it simply will be 4532/2^16 = 0.0691528.

This is correct.

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MSP430FR6047: MCO018