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I am using a Nexys 4 DDR board and want to use the microSD as an external memory to read from. right now: I am using HDL only Want to read from SD in SPI mode as a continues loop Want to write to Micro SD offline via PC I have an HDL code, and I am able to write to and then read-back from the SD inside the HDL correctly, but have no idea how a data file on my computer can be turned into something on SD that I can read properly in FPGA Questions: What file format am I supposed to use for the SD card? (FAT32? ) What tool to use? I am using HxD http://mh-nexus.de/en/hxd/ I wrote a random file to the SD using the HxD, when I initiate read in FPGA, I see data, but don't know what it is! Maybe I only need to figure the address for beginning of my data??? Thanks in advance.
Hi, A small improvement for the SPI interpreter? We now only have a 3 wire possibility but it would be nice if we have a 4 wire too as you can see in my example where I added 1 separate channel DIO 3, the disadvantage is that I must interpret the values (like SPI MISO) of the MOSI channel by myself. Here is an example from a competitive logic analyzer; And can we have ASCII in the format too? Thanks in advance, Hans