PetiteFS FATfs SDCard USCI code

[cubeberg 540]

is there a way to save it to an excel file (.xlsx) instead of .txt file?

You could use a delimiter - excel works great with tabs or commas.

[f3a46 0]

Hi thanks for the reply!

 

Is there another way, like writing to the excel file with the program? I am doing this because I am trying to make this easy for whoever's using this code, so they don't have to handle all these delimiter steps (txt file to excel file)

[cubeberg 540]

Hi thanks for the reply!

 

Is there another way, like writing to the excel file with the program? I am doing this because I am trying to make this easy for whoever's using this code, so they don't have to handle all these delimiter steps (txt file to excel file)

I'd say a native excel format is way too complicated for the device.  Even the .xslx format which is XML-based requires the XML to be compressed.  It would also require you to write the data together as one file - whereas a delimited file can just be appended when you have new information.  However - if you use a .csv file extension and comma separate - excel can open the file without user interaction.  CSV files are typically already associated with excel - so they would open it up like a normal spreadsheet.

[RobG 1,892]

Use tab delimiters and name your file .xls, there's nothing simpler.

[f3a46 0]

Hey I just notice it's using software serial for UART. How do I change it to hardware UART, or is there a reason why it uses SW?

[bluehash 1,581]

@@f3a46 The hardware serial port is tied to the Launchpad's serial/usb emulation via jumpers. You can use it if you want, but you will have to forgo that port you use to do printfs.

[msp430noob 0]

I have the same problem with f3a46. I am trying to integrate my Bluetooth code (using hardware serial) with this code (software serial). If i take out the SW code and use HW, would that affect the petit FAT file side of code?

[cubeberg 540]

I took a look at the software serial code - I'm not seeing any issues with gutting it and using hardware UART unless I'm missing something obvious.  I'm not seeing anything that sets anything affecting clocks that might cause a problem elsewhere.  I'd say you're safe to swap it out - just leave the function names, or replace the function names in the other files (or add a define).  Just make sure you've got the jumpers set correctly for HW uart instead of SW.

[msp430noob 0]

Thanks for the reply

[f3a46 0]

I could get the code to work without disk_initialize(), do you guys got the same thing? Isn't it necessary?

[f3a46 0]

nevermind, it doesnt work

[f3a46 0]

URGENT: would anybody know how to easily create a .csv file for a certain file size? say 900 kb

 

Thanks in advance!!!

[cubeberg 540]

What OS?  

Win 7 - http://en.kioskea.net/faq/15846-windows-7-create-and-empty-file-having-a-defined-size

 

https://www.google.com/search?q=create+empty+file+with+specific+size

[Hammerwang 1]

Hey @@bluehash, new question for you - 

 

Thank you for all your help for getting the SD card reading going, I am now trying to get this mp3 audio decoder, the STA013, incorporated into my design. 

 

But I am having trouble with getting the data from the SD card (via SPI - MISO) to the g2553 microcontroller, and passing this data to my decoder (via I2C - SDAout).

 

Do you have any insight on this issue? Is it possible to switch between the SPI protocol to the I2C protocol?

I have a multiplexer to divide the line conflict between the two, but I believe they share the same interrupt, which follows:

#pragma vector = USCIAB0TX_VECTOR

__interrupt void USCIAB0TX_ISR(void)

 

Let me know if you need any more info or any clarifications, thanks !

[f3a46 0]

This is very useful Thank you!

 

Is there a way to access any file from the SD card? Right now it's pf_open(filename.txt). How do we get the code to work with any filename?