Swordfish

Steven

I think that the sin and cos functions are expecting an angle in radians, not degrees. To convert from degrees to radians, multiply your angle by 2Pi/360 (or approx 0.0174533).

Steven

I've just posted a partly updated version of the help file for the SD module on the wiki ( http://www.sfcompiler.co.uk/wiki/pmwiki.php?n=SwordfishUser.SDFileSystemVersion ), with my benchmark figures in. The figures in the above post are from an earlier version of the module and it's worth upgrading...

Steven

That's really helpful - thanks.

Steven

There is a fundamental difference between variables declared at the start of the code and those declared within subroutines/functions. Those at the beginning are global - they are accessible by all code within a module or program, and outside of a module also if they are made public. Variables decla...

Steven

Good to know it's been of use - thanks for letting me know.

Steven

In answer to (1), you will have to find the file entry in the root directory (these are a specified number of sectors near the start of the disk). The file entry will tell you the first cluster of the file. You will then need to convert this to a sector number (the first available cluster is number ...

Steven

Could you pass the array by reference? I'll have to check this.

Steven

Hi Ryan,

No, I haven't used a 18F26K20 yet. Are the SPI registers standard or are they named differntly maybe?

Steven

Why not switch to writing using FAT - the library by itself, run on a 40MHz PIC could write 6MB in less than 2 minutes. Or maybe there is something that we could do to speed up your code - can you post it?

Steven

I don't know anything about using extended mode, but you might be able to create a structure that contains your variables and then place a declared instance of this using an absolute address. The storage of strucures is in sequential bytes normally.

And welcome to the forum!

Steven

Hi - could you post the code that you are using?

Steven

It might not be the answer, but try putting the dims after the includes.

Steven

Dave has posted some code on the wiki: http://www.sfcompiler.co.uk/wiki/pmwiki ... r.SegCount

Steven

Something like this might also help:

Code: Select all

Function GetNumber(pSwitches as Word) as Byte
Dim i as Byte
   GetNumber = 0
   i = 0
   Repeat
      Inc(i)
      If pSwitches.0 = 1 Then
         GetNumber = i
      EndIf
      pSwitches = pSwitches >> 1
   Until i = 16 or GetNumber > 0
End Function

Steven

I think

LCD.WriteAt (1, 1, BinToStr(Switches))

should work fine, as you suggest - nothing else should be needed and no need to dim an extra string to hold it.

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