 H. Peter Anvin
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4cc5301813
sdcard: generalize the IP, instantiate for ESP32 SPI channel too
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3 years ago |
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H. Peter Anvin
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518503fa99
iodev: centralize definitions and auto-generate boiler plate code
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3 years ago |
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H. Peter Anvin
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cd15d8fd49
picorv32: revamp the Q registers to be a full bank switch
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3 years ago |
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H. Peter Anvin
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996bd201be
Timing improvements: wait state for iodev, fix handling of sr_clk
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3 years ago |
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H. Peter Anvin
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7c6cbc57c6
fpga/max80: 32 kHz RTC clock isn't working, workaround
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3 years ago |
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H. Peter Anvin
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6a406133f0
Add sdcard and sysclock units; reshuffle address map
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3 years ago |
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H. Peter Anvin
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65f412c5d0
Add sdcard unit; currently SPI based
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3 years ago |
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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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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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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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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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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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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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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 |
