F28377D IQ-Math Tables

Frank Bormann

Other Parts Discussed in Thread: CONTROLSUITE

It seems that the new F28377D does not have any IQ-Math tables inside the ROM any more. I also saw that the controlsuite Support files include some Linker command files, which connect the section "IQMathTables" to either FLASHC or RAMLS1_LS2. My question is:

Where can I find the neccesary array definition source files to fill FLASHC aor RAMLS1_LS2 with the "old" IQ-Math tables? I'd like to re-use and adapt existing 28335 Projects, which use the sine lookup table, to the new device.

Frank

over 12 years ago

0 Santosh Athuru over 12 years ago

TI__Mastermind 19810 points

Frank,

yes the IQMath support from ROM is removed as we have FPU and TMU on this device. If yo still want to use IQMath libraries include the libs from controlSuite "C:\ti\controlSUITE\libs\math\IQmath\v160\lib".

search this forum for TMU and you should find details on how to use it if it helps.

http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/333174/1162350.aspx#1162350

http://e2e.ti.com/support/microcontrollers/c2000/f/171/p/312821/1087994.aspx#1087994

Best Regards

Santosh

0 Frank Bormann over 12 years ago in reply to Santosh Athuru

Mastermind 7585 points

Santosh,

thanks for your answer. I know that using the TMU or FPU is a better solution than IQ-Math. However, to convert existing IQ-Math projects to the new device with as few as possible changes it would be useful to be able to add some code-files, which define the old ROM - tables, so that they can be added to the F28377 project. This way we would only have to change one line of the linker command file to access the lookup-tables.

Of course I can build a replacement of the lookup-tables by myself, but it wouldbe much nicer, if we could such files in Controlsuite. Do you know, if these source-files are available? I would be most interested in the sine tables in I2Q30 and float.

Regards Frank

0 Santosh Athuru over 12 years ago in reply to Frank Bormann

TI__Mastermind 19810 points

Frank,

see if you can use the sources in the 28335 bootROM (C:\ti\controlSUITE\libs\utilities\boot_rom\2833x).