PropBoe with lots of storage

ratronic · 2012-05-04 18:16

I had ordered a 32gb uSD card for something else but gave it a try using Kye's driver on the PropBoe. I was going to display bytes free but the Prop can't easily display a number that high. The card came preformatted with fat32 and has 31,902,400,512 bytes storage. Attached is a picture of the Parallax serial terminal after running this program. I had already transfered some .txt files to it on my computer. That is a lot of storage and that card found a new home with my PropBoe!

Con                                                      
                                                         
  _CLKMODE = XTAL1 + PLL16X                              
  _XINFREQ = 5_000_000
  DO  = 22                              
  CLK = 23                             
  DI  = 24                              
  CS  = 25                              
       
Var         
    
Obj
  io : "parallax serial terminal"  
  sd : "sd-mmc_fatengine"
        
Pub Init | a, b, c
  io.start(115200)
  waitcnt(clkfreq*2+cnt)
  if sd.fatEngineStart( DO, CLK, DI, CS, -1, -1, -1, -1, -1)
    sd.mountpartition(0)
    io.str(string("Partition mounted!",13,13))
  else
    io.str(string("Problem starting fat engine",13))
    error
  a := sd.partitionusedsectorcount("F")
  b := sd.partitionbytespersector
  c := sd.partitionfreesectorcount("F")  
  io.str(string("File system                    ",11))
  io.str(sd.partitionfilesystemtype)
  io.str(string(13,"Used partition sectors         ",11))
  io.dec(a)
  io.str(string(13,"Bytes per partition sector     ",11))
  io.dec(b)
  io.str(string(13,"Current free partition sectors ",11))
  io.dec(c)
  io.str(string(13,13,"Total bytes used               ",11))
  io.dec(a * b)
  
  sd.unmountpartition
Pub error
 
  repeat

smithdavidp · 2012-05-05 03:38

Ummmmmm Dave.......there may be a glitch with this file. I have a 4 gig card installed and it is reporting that I have 8 gig (rounded up) of memory space.

mindrobots · 2012-05-05 04:23

I don't know, D Rat's numbers seem to work out for a 32GB formatted card.

(512 bytes per sector * 62283712 sectors) + 13139968 bytes = 31902400512 /1024 / 1024 / 1024 = 29GB

What numbers did you get - bytes per sector, used partition sectors, free partition sectors?

smithdavidp · 2012-05-05 04:58

This is what I got:

mindrobots · 2012-05-05 05:14

(512 * 7841664) + 65536 = 4014987264 / 1024 / 1024 / 1024 = 3.73 GB - seems reasonable for a 4GB card

smithdavidp · 2012-05-05 06:21

Don't mind me..... I got up too early this morning. I re-did the math and figured that out. Nice catch.

ratronic · 2012-05-05 06:59

The way I was going to calculate total storage bytes is to add used and free sectors, multiply that with bytes per sector but the Prop can't easily display that high of a #. Using that method I calculate smithdavidp has 4,014,997,504 total byte's storage on that partition on the card.

smithdavidp · 2012-05-05 09:19

It works better then anything else I have seen so far.

mindrobots · 2012-05-05 09:53

Soooo, now that you have all that storage......whatcha gonna do with it???Download GPS maps to you robot so it can go anywhere in the USA??

smithdavidp · 2012-05-05 10:19

I actually need more space. Now that I know it will handle a 32 gig card I'm gonna have to go get one. Mine will be filled with lookup columns and WAV files. Yes, I am trying to teach my Boe Bot to talk to me. lol (although the mapping idea for the house doesn't sound like a bad idea) lol

PropBoe with lots of storage

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