提交历史

作者 SHA1 备注 提交日期
  H. Peter Anvin d6d6390bca Clean up _start() -- the one in libc doesn't zero bss correctly 3 年之前
  H. Peter Anvin ec99762a84 Use waitirq rather than suspending a memory transaction for SD card 3 年之前
  H. Peter Anvin 56753cd6a3 abcbus: move abcbus to separate module; add I/O status register 3 年之前
  H. Peter Anvin 69476ffdf6 Add I/O interface to the ABC bus, using SDRAM DMA 3 年之前
  H. Peter Anvin f6f9bf7ede Add i2c unit 3 年之前
  H. Peter Anvin 55b0aeee3f iodev: move one-register "devices" into a common "sys"; add "abc" device 3 年之前
  H. Peter Anvin e1878a396f Detect the presence of an ABC-bus by looking for a clock signal 3 年之前
  H. Peter Anvin 8368aa9534 fpga: parameterize the rtc_32khz workaround 3 年之前
  H. Peter Anvin b5e39487bd max80: change esp_ctr debug signal to 4 Hz 3 年之前
  H. Peter Anvin c40501f76e SDRAM access from the ABC-bus 3 年之前
  H. Peter Anvin 03fae78888 hack: binary counter on ESP pins to test connectivity 3 年之前
  H. Peter Anvin 4cc5301813 sdcard: generalize the IP, instantiate for ESP32 SPI channel too 3 年之前
  H. Peter Anvin 518503fa99 iodev: centralize definitions and auto-generate boiler plate code 3 年之前
  H. Peter Anvin cd15d8fd49 picorv32: revamp the Q registers to be a full bank switch 3 年之前
  H. Peter Anvin 996bd201be Timing improvements: wait state for iodev, fix handling of sr_clk 3 年之前
  H. Peter Anvin 7c6cbc57c6 fpga/max80: 32 kHz RTC clock isn't working, workaround 3 年之前
  H. Peter Anvin 6a406133f0 Add sdcard and sysclock units; reshuffle address map 3 年之前
  H. Peter Anvin 65f412c5d0 Add sdcard unit; currently SPI based 3 年之前
  H. Peter Anvin 1f822e260c Change onboard fast SRAM from 8K to 32K 3 年之前
  H. Peter Anvin 9bf7d10a84 tty: add status register and irq support; clean up iodev map 3 年之前
  H. Peter Anvin 42f4ad6376 Make downloader work; use PLL for SDRAM clock offset 3 年之前
  H. Peter Anvin f476073603 SPI ROM -> SDRAM download unit (not quite working yet?) 3 年之前
  H. Peter Anvin 4f9855b5c4 tty: simplify by running in the sys_clk domain; use NCO for baud 3 年之前
  H. Peter Anvin 16e9576297 fpga: make the SDRAM work! 3 年之前
  H. Peter Anvin 9e0713c926 sdram: remove misaligned handling 3 年之前
  H. Peter Anvin 115e7850e2 tty: actually clock tty unit; alternative serial port on GPIO 3 年之前
  H. Peter Anvin 10bc2b4ed1 Make the LED output numbers match the order on the back 3 年之前
  H. Peter Anvin f2060589ab Default baud rate = 115200, baud rate programmable 3 年之前
  H. Peter Anvin 4410a635c4 Minimal console serial port (1000000-N81) "Hello, World!" 3 年之前
  H. Peter Anvin 265fb7692e CPU now can execute instructions, at least in simulation!! 3 年之前