 H. Peter Anvin
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0176e771d1
fw: irq wrapper, picorv32 custom instructions, _die() with blinkenlights
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3 years ago |
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H. Peter Anvin
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56287b0a05
sdram: leave CKE permanently enabled
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3 years ago |
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H. Peter Anvin
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6b7c85430e
sdram: I/O timing tweaks, hopefully for the better...
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3 years ago |
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H. Peter Anvin
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e9f9d2c765
fw: print error messages on a new line
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3 years ago |
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H. Peter Anvin
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f2f1e52e5e
fw: better SDRAM test (fails?)
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3 years ago |
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H. Peter Anvin
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b2bb8e764d
fw: avoid 64-bit division in con_set_baudrate()
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3 years ago |
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H. Peter Anvin
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4f9855b5c4
tty: simplify by running in the sys_clk domain; use NCO for baud
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3 years ago |
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H. Peter Anvin
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16e9576297
fpga: make the SDRAM work!
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3 years ago |
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H. Peter Anvin
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9e0713c926
sdram: remove misaligned handling
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3 years ago |
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H. Peter Anvin
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115e7850e2
tty: actually clock tty unit; alternative serial port on GPIO
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3 years ago |
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H. Peter Anvin
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0bb16fa955
fpga: switch RxD and TxD back for reworked boards
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3 years ago |
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H. Peter Anvin
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10bc2b4ed1
Make the LED output numbers match the order on the back
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3 years ago |
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H. Peter Anvin
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b87dddeaa9
fw: tty is not working due to invalid pinout
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3 years ago |
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H. Peter Anvin
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9b1134ea5b
sdram: improve initialization timing
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3 years ago |
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H. Peter Anvin
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f2060589ab
Default baud rate = 115200, baud rate programmable
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3 years ago |
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H. Peter Anvin
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4410a635c4
Minimal console serial port (1000000-N81) "Hello, World!"
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3 years ago |
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H. Peter Anvin
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265fb7692e
CPU now can execute instructions, at least in simulation!!
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3 years ago |
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H. Peter Anvin
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c78f9d909d
Roll back picorv32 hacks for unaligned memory support
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3 years ago |
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H. Peter Anvin
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062a3d9eb1
Reorganize tree so a single Makefile can do the right thing
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3 years ago |
