AvrDos -> SD newby problem

stefano · Joined: 14 Nov 2005 Posts: 5

Hi Josef,
I'm trying to use Your AvrDos with M128L and SD card to construct a simple datalogger.

.................... confusion Sad

(

How i make for write the text "ABCD" in the file XYZ.TXT in the SD card ?

---------------------------------
Dim Txt As String * 4
Txt = "ABCD"
Open Xyz.txt For Append #1
Print Txt
Close #1
---------------------------------

What other needs ?

Sorry, but more I read the forum and more the confusion increases.

Best Regards
Stefano

oe9vfj · Joined: 17 Jun 2004 Posts: 269 Location: Austria, Hard

Hi Stefano,

First you need to tell BASCOM which mass storage device you want to use.
For MMC or SD you have to include the file Config_MMC.bas

stefano · Joined: 14 Nov 2005 Posts: 5

Hi Josef,
thanks for the clear answer.

I have tried to follow your instructions, but the compiler evidences me an error: 31 Invalid datatype(0)

This evening I will try with more attention.

One question, why in the Config_MMC.bas you config the pinb.0 twice?

--------------------------------------------------------------------------------------
' define Chip-Select Pin
Config Pinb.0 = Output ' define here Pin for CS of MMC/SD Card
--> Mmc_cs Alias Portb.0
Set Mmc_cs

' Define here SS Pin of HW-SPI of the CPU (f.e. Pinb.0 on M128)
Config Pinb.0 = Output ' define here Pin of SPI SS
--> Spi_ss Alias Portb.0
Set Spi_ss ' Set SPI-SS to Output and High por Proper..
--------------------------------------------------------------------------------------

Best regards
Stefano

oe9vfj · Joined: 17 Jun 2004 Posts: 269 Location: Austria, Hard

Hi,

To your question about PinB.0:

If you use another pin than the SPI-SS to select the MMC/SD Card, you have to make sure, that SPI-SS (PinB.0 on the M128) is configured in OUTPUT direction. If this Pin works as Input-Pin and forced to LOW, than the HW-SPI changes to SLAVE mode (described in the ATMEL Datasheet) and this will disturbe the SPI communication.
That's the reason I inserted a part, that this pin is configured for OUTPUT anyway.

Compiler-Error: Please show your code and the line which the compiler complains.

stefano · Joined: 14 Nov 2005 Posts: 5

Hi Josef,
here the code.
The compiler indicates the error in correspondence of the command "End"

---------------------------------------------------------------------------------
$crystal = 7372800
$regfile = "m128def.dat"

Config Lcdpin = Pin , E = Portd.1 , Rs = Portd.5 , Db4 = Porte.7 , Db5 = Porte.5 , Db6 = Porte.3 , Db7 = Porte.1
Config Lcd = 20 * 4 'configure lcd screen
Cursor Off Noblink
Cls

Dim Txt As String * 4
Dim Btemp1 As Byte 'Init File System on SD card

$Include "Config_MMC.bas"
If Gbdriveerror <> 0 Then 'The result of the Init-Routine is stored in the Byte-Variable gbDriveError
Print "Card Error " ; Gbdriveerror
End
' Insert here your Error Handler
End If

$Include "Config_AVR-DOS.bas"
Btemp1 = Initfilesystem(1)
If Btemp1 <> 0 Then
Print "File System Error " ; Btemp1
End 'fine programma inutile proseguire
' Insert here your Error Handler
End If

Txt = "ABCD"

Open "Xyz.txt" For Append As #10 ' Numbers greater or equal 10 will be a good choice.
Print #10 , Txt
Close #10

End
--------------------------------------------------------------------------------

Best regards
stefano

bzijlstra · Posted: Sat Nov 19, 2005 5:06 pm Post subject: End...

Stefano

Is it possible to use only one End-statement and have all END's do a jump to the label quit (goto quit)

quit:
end

Could you tell us what the result is?

Bye
Ben Zijlstra

stefano · Joined: 14 Nov 2005 Posts: 5

Hi Josef,
adding the label jump the result not change.
I have tested the program on the M128 and in the SD(1Gb) I have found the file xyz.txt but without data inside.

thanks for the demonstrated patience

stefano

oe9vfj · Joined: 17 Jun 2004 Posts: 269 Location: Austria, Hard

Hi Stefano,

At writing data to the card, AVR-DOS uses the date and time values of the clock for the directory information (Update time and create time in the directory)

Please insert the line

stefano · Joined: 14 Nov 2005 Posts: 5

Hi Josef,
with the command "Config clock = Soft" the program don't run,
but manually configure the variable:
Dim _day As Byte
Dim _month As Byte
Dim _year As Byte
Dim _sec As Byte
Dim _hour As Byte
Dim _min As Byte

it's work fine Very Happy

Big thanks
Stefano

oe9vfj · Joined: 17 Jun 2004 Posts: 269 Location: Austria, Hard

Hi,

Please use following order for DIM the time/date variables.

kero · Joined: 06 Mar 2009 Posts: 1

hello..

can anyone help me?Ii want to make a data logger with mmc as storage divice. I am using Atmega32 and external DS1302 RTC, i want to log the data of rotary encoder.I want to simplified taken mmc from data logger and reading it on commercial card reader to read the data using Windows operating system. the data is on csv format. I am newbe on programming. I use a basic language and Bascom Avr compiler. can anyone give me the working code? i am confusing reading on this forum.

regard

kero