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Altera_Forum
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9 years ago

(CycloneV) Writing 128bits to FPGA at once using linux kernel module

Hi, I'm trying to write a kernel module that writes 128bits of data to the FPGA using the HPS-to-FPGA bridge. The bridge width is configured as 128 Bits in Qsys and I'm using memcpy_toio() to w...
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Altera_Forum
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9 years ago

Given that the ARM is a 32 bit processor, the only way you will be able to write more than that is with a cache line write, or DMA.