 H. Peter Anvin
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cae89058dc
fw/Makefile: add explicit path to CROSS
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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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27454bdbd3
qsfdeps.pl: ignore Signaltap files
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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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445c3542f1
Makefile target to really strip Signaltap from max80.qsf
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3 years ago |
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H. Peter Anvin
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a7b663743d
max80.sdc: add back output delay for sr_clk
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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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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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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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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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0af5c2d01d
Merge branch 'main' into uart-rework
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3 years ago |
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H. Peter Anvin
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9a9c1beba7
fpga: quartus programming targets
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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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73e518e763
fpga/Makefile: run quartus_pow after quartus_sta
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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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776ec1c1d2
tools/Makefile: avoid rebuilding over and over
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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 |
