FTDI Community

Please login or register.

Login with username, password and session length.
Advanced Search  

News:



Welcome to the FTDI Community!

Please read our Welcome Note

Technical Support enquires
please contact the team
@ FTDI Support


Show Posts

You can view here all posts made by this member. Note that you can only see posts made in areas to which you currently have access.

Topics - Miriam

Pages: [1]
1
Hi there,

I am new to this community so I hope I chose the right subforum to post.

I have an FTDI USB device that sends a huge amount of (known) data via the FTD2XX driver in 245-FIFO-mode. I wrote a little C code that reads the data and checks it for correctness. With every call of FT_Read(), an array of 256 bytes is processed.

When I run this code on my Windows desktop, it works fine. However, when I cross compile and run the executable on a Raspberry Pi, it results in data loss. I built a delay of 2 seconds in my code after the device starts sending data and before the first call of FT_Read(). Since that, the fault in the read data always occurs at the same byte.

What is the reason of this data loss (buffer overflow?) and how can I prevent it?

I use a Raspberry Pi 3 with the latest version of Raspbian OS Lite. The code is cross compiled on a Windows 32bit workstation with GCC. The libraries used are those packed with the libftd2xx-arm-v6-hf-1.4.6 driver I downloaded from the official FTDI website.

Thank you for any ideas.

Pages: [1]