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Altera_Forum
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9 years ago

SD card multiple read

Hello everyone Greetings, I am Ph.D student working on FPGA, I am facing a problem that I couldn't figure out its reason(s). I have implemented SD card reading / writing. The prob...
Altera_Forum's avatar
Altera_Forum
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9 years ago

This is only a snippet, so I cant really comment on this code - is it synchronous? why are you using variables?

The fact you have a variable called "wr_enable" AND a biderectional description using wr_enable, that makes me beleive this is all in the same process - which is poor practice.

Did you draw a diagram of your circuit before you did any coding? did you follow the coding guidelines the in the Quartus manual?

https://people.ece.cornell.edu/land/courses/ece5760/de1_soc/hdl_style_qts_qii51007.pdf