I am using the 2.8 " Digilent MTDS TFT display for an graphics/ datalogging application. Graphics and everything except the file interface in the MTDS trough the PIC to the uSD card works really well.
My main issue is that I can find no easy way to append to a CSV file on the uSD card. I can not find a way to do that in the mtfs part of the MTDS system. Is there a way to open a file in append mode similar to "a" in c? As I understand it, the file c functions can not be used directly for accessing the uSD card.
I can open, write and close files without issues, but not append. Am I missing something in the documentation?
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Erik Isberg
Hello!
I am using the 2.8 " Digilent MTDS TFT display for an graphics/ datalogging application. Graphics and everything except the file interface in the MTDS trough the PIC to the uSD card works really well.
My main issue is that I can find no easy way to append to a CSV file on the uSD card. I can not find a way to do that in the mtfs part of the MTDS system. Is there a way to open a file in append mode similar to "a" in c? As I understand it, the file c functions can not be used directly for accessing the uSD card.
I can open, write and close files without issues, but not append. Am I missing something in the documentation?
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