A question about convert decimal value to string then to store into SD card!!

kevinspace · 2011-12-08 02:42

Hello everyone~
I tried to use the object fsrw.spin to save data in SD card.
Here is my code:

CON
  _clkmode = xtal1 + pll16x             ' Set up the clock frequencies
  _xinfreq = 5_000_000

  CS  = 3    ' Propeller Pin 3
  DI  = 2     ' Propeller Pin 2                  
  CLK = 1   ' Propeller Pin 1                          
  D0  = 0    ' Propeller Pin 0 

OBJ
  SDfat : "fsrw"            ' Download the fswr.spin object from the Parallax Propeller Object Exchange (OBEX), accessed from parallax.com
  Debug   : "FullDuplexSerialPlus"   

PUB Main | insert_card
  Debug.start(31, 30, 0, 115_200)
  Debug.tx(16)
  waitcnt(clkfreq*3 + cnt)              
  insert_card := \SDfat.mount_explicit(D0, CLK, DI, CS)      
  
  if insert_card < 0                                           
    Debug.str(string(13))                                       
    Debug.str(string("The Micro SD Card was not found!"))       
    Debug.str(string(13))                                        
    Debug.str(string("Insert card, or check your connections.")) 
    Debug.str(string(13))                                        
    abort                                                     
 
  Debug.str(string(13))
  Debug.str(string("Micro SD card was found!"))                
  Debug.str(string(13))
  SDFat.popen(string("output.txt"), "a")                'Open a txt file                                 
  
  [B]SDFat.pputs(string ("text"))               [/B]                     
  SDFat.pclose                                                     
 
  Debug.str(string("Text was written the [B]text [/B]on the Micro SD Card"))
  SDFat.unmount

The SDFat.pputs command seems like have to be string!!
Are there anyone knows that how to convert a variable to string, then save the variable into the SD card ?
Just like A := 10
convert A to string
SDFat.pputs(A)
......
......

Are there any example or any suggestion?
Thanks a lot.

Here is my code.
Code.rar

max72 · 2011-12-08 06:00

check the library in the propeller path. you should find numbers.spin
simple_numbers on the obex is good too.
bot can convert your number to a string. numbers is more powerful, but simple numbers has some feature i like and use (zero padded numbers and so on).
Simply declare num in the object and use it in the pputs function
out of memory something like that:

SDFat.pputs(num.dec (A))

you probably have many options, decf, decx, and so on to set the number format, but all of them convert your number to string.

Massimo

edit:
with simple_numbers is use something like that:
fsrw.sdstr(num.decx(abs_windspeed,6))

A question about convert decimal value to string then to store into SD card!!

Comments