LP-MSPM0G3507: LP-MSPM0G3507

Ali Mousa

Part Number: LP-MSPM0G3507
Other Parts Discussed in Thread: MSPM0G3507

Tool/software:

Hello,

I would like to know what configurations are needed to perform square root, for example the square root of the number 9

MATHACL->CTL = MATHACL_CTL_FUNC_SQRT | /// Do square root
MATHACL_CTL_OPTYPE_UNSIGNED | /// the operand is unsigned
MATHACL_CTL_QVAL_Q0; /// no fractional

MATHACL->OP1 = 9U;

MATHACL->OP2 = 0U;

while ((MATHACL->STATUS & MATHACL_STATUS_BUSY_MASK) ==

MATHACL_STATUS_BUSY_NOTDONE) {

;

}

result = MATHACL->RES1;

best regards

Ali

3 months ago

0 Dylan OBrien 3 months ago

TI__Genius 15690 points

Hi Ali,

You can find an example for using the MATHACL in the SDK under the file path [SDK Install Path]\examples\nortos\LP_MSPM0G3507\driverlib\mathacl_mpy_div_op . This can help to show general usage of the peripheral. If you also take a look at the dl_mathacl.h and dl_mathacl.c source code you can see the register level accesses, as well as APIs to perform the square root operation.

For more specifics on how the MATHACL peripheral works and the available registers please see the MSPM0G Series Technical Reference Manual

0 Ali Mousa 3 months ago in reply to Dylan OBrien

Prodigy 231 points

Hi Dylan,

I used the MATHACL for multiplication and division, and it worked fine. However, I am still unable to use the square root operation correctly. I read the instructions on how the square root operation works, but it did not perform as expected.

Best regards,
Ali

+1 Dylan OBrien 3 months ago in reply to Ali Mousa

TI__Genius 15690 points

Could you paste the updated code in a formatted block here to show the changes you made to perform the square root operation?

0 Ali Mousa 3 months ago in reply to Dylan OBrien

Prodigy 231 points

Hi Dylan,

It works now. I did not do the configuration correctly

Best regards

Ali

0 Dylan OBrien 3 months ago in reply to Ali Mousa

TI__Genius 15690 points

Glad to hear it! If there was something you did that you think would be a common issue, I'd appreciate if you would share here to help other users who may have the same issue. Thanks!

+1 Ali Mousa 3 months ago in reply to Dylan OBrien

Prodigy 231 points

Hi Dylan,

I followed the steps as described in the reference manual chapter 6.4.3.

The example with the number 10.375 helped me to understand the whole thing.

Best regards

Ali

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LP-MSPM0G3507: LP-MSPM0G3507