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A comment on Brewing Up a myStorm FPGA board on the kitchen table. Parent comment

Re:Brewing Up a myStorm FPGA board on the kitchen table by cottonseed on Saturday July 30, 2016 @05:07PM (#12194712)
Unfortunately IceStorm has only reverse engineered the 1K and 8K, not the 4K.
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Re:Brewing Up a myStorm FPGA board on the kitchen table by cliffordvienna on Sunday July 31, 2016 @10:53AM (#12197206)
There is no 4K die. The 4K chips are using 8K dies, the lattice software limits the number of usable LUTs to 4K. IceStorm will give you access to all 8K LUTs in the device.
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Re:Brewing Up a myStorm FPGA board on the kitchen table by cottonseed on Sunday July 31, 2016 @11:47AM (#12197418)
I didn't realize that. Thanks for clarifying, Clifford!
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Re:Brewing Up a myStorm FPGA board on the kitchen table by ElaineB on Saturday July 30, 2016 @11:14PM (#12195583)
Really? On the http://www.clifford.at/icestorm/ IceStorm site - If you look carefully at the table of supported devices - the ICE40HX4K-144 is there - 2 rows from the bottom
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Re:Brewing Up a myStorm FPGA board on the kitchen table by rwmj on Sunday July 31, 2016 @01:18AM (#12195837)
Am I right in thinking 8K refers to the number of LUTs/cells? If so I won't be fitting the Rocket RISC-V design in one any time soon. Although it's a good start - I'll be very happy to see the back of Xilinx Vivado awfulness one day.
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Re:Brewing Up a myStorm FPGA board on the kitchen table by cliffordvienna on Sunday July 31, 2016 @11:01AM (#12197244)
PicoRV32 (https://github.com/cliffordwolf/picorv32) and ORCA (https://github.com/VectorBlox/orca) are two RISC-V implementations that nicely fit in ~2000 iCE40 LUTs. UCB-BAR V-Scale (https://github.com/ucb-bar/vscale) fits in ~4000 iCE40 LUTs.
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Re:Brewing Up a myStorm FPGA board on the kitchen table by edwintorok on Sunday July 31, 2016 @03:09AM (#12196041)
There is a Pico Risc-V that fits in ~2000 LUTs that can be built for the ice40: https://github.com/cliffordwolf/picorv32 https://github.com/cliffordwolf/picorv32/blob/master/scripts...
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Re:Brewing Up a myStorm FPGA board on the kitchen table by cottonseed on Sunday July 31, 2016 @11:48AM (#12197421)
I stand corrected. See Clifford's other comment in this thread.
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