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Altera_Forum
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12 years ago

solution for mcu to configure ALTERA FPGA

Hello, i'm trying to use a MCU(like C8051) to configure Cyclone IV device(EP4CE30) in Passive Serial mode. In the past, i was using GPIO of MCU to simulate the configure timing. But configure sp...
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Altera_Forum
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12 years ago

As Dave said, your solution will work.

One thing to keep in mind is the bit ordering as the data is shifted out. Some MCU's don't have the ability to shift LSB out first. To save cpu cycles, we do a pre-processing bit reversal on the RBF file in this case. This allows the data to be directly sent out (DMA or otherwise) with out the need of having the CPU translate each byte as part of the process.

Pete