 H. Peter Anvin
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1f822e260c
Change onboard fast SRAM from 8K to 32K
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3 years ago |
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H. Peter Anvin
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152a913007
qsf: add spirom.sv; update boot.mif
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3 years ago |
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H. Peter Anvin
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a6e8bd9b0e
fw: more detailed error messages for downloader
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3 years ago |
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H. Peter Anvin
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dce6ed79e1
fw, console: add flush function
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3 years ago |
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H. Peter Anvin
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9bf7d10a84
tty: add status register and irq support; clean up iodev map
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3 years ago |
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H. Peter Anvin
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03019163e4
spirom: revert uploader to arbitrary 8*n-byte bursts
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3 years ago |
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H. Peter Anvin
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42f4ad6376
Make downloader work; use PLL for SDRAM clock offset
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3 years ago |
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H. Peter Anvin
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925ec18e6d
fw: add data download test
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3 years ago |
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H. Peter Anvin
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f476073603
SPI ROM -> SDRAM download unit (not quite working yet?)
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3 years ago |
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H. Peter Anvin
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08ac6caba9
fw: revert to 115200 bps
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3 years ago |
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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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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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c2bee3cb77
fw: pull in libc, printf to console, SDRAM test
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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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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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aad6fa3aad
fw: link against newlib-nano
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3 years ago |
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H. Peter Anvin
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8e77198270
Better fast_mem implementation; need to split .mif files
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3 years ago |
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H. Peter Anvin
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0a742774ae
Getting full synthesis with CPU and fast memory; not tested yet
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3 years ago |
