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Altera_Forum
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12 years ago

Problem with tri-state controller

Hi everyone! I'm trying to use tri-state controller to connect nios2 system to w5300 chip (w5300 is considered as SRAM). Write command works very strange: two nWR pulses and two nCS are formed, s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

are the byte enable signals the same on both accesses? Weird things can happen sometime on those, especially if the CPU is doing a 8 or 16-bit access, or if the memory is not 32 bits wide. Sometimes you get extra write accesses with all the byte enable signals deasserted.