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SDRAM does not work on Red Pitaya #67

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opened 2020-09-09 21:22:56 +08:00 by sb10q · 3 comments
sb10q commented 2020-09-09 21:22:56 +08:00
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Accessing the SDRAM freezes the CPU randomly.

The various clocks also probably need review...

Accessing the SDRAM freezes the CPU randomly. The various clocks also probably need review...
pca006132 commented 2020-09-22 14:52:14 +08:00

Applying the ps7_init data from the Red Pitaya FSBL does initialize the SDRAM correctly and passed the memory test.

I would review the different parameters and possibly plan for DDR module refactoring later, to allow specifying the RAM parameters from datasheets.

Applying the ps7_init data from the Red Pitaya FSBL does initialize the SDRAM correctly and passed the memory test. I would review the different parameters and possibly plan for DDR module refactoring later, to allow specifying the RAM parameters from datasheets.
sb10q commented 2020-09-25 16:06:35 +08:00
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Owner

SDRAM chip is AS4C256M16D3B-12BCN

SDRAM chip is AS4C256M16D3B-12BCN
astro commented 2020-11-13 19:13:00 +08:00

Fixed in 990fa56d6a

Fixed in https://git.m-labs.hk/M-Labs/zynq-rs/commit/990fa56d6a779eb93b3f22746d6231e64c62676e
astro closed this issue 2020-11-13 19:13:08 +08:00
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Reference: M-Labs/zynq-rs#67
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