Commit History

Author SHA1 Message Date
  H. Peter Anvin f6f9bf7ede Add i2c unit 3 years ago
  H. Peter Anvin 55b0aeee3f iodev: move one-register "devices" into a common "sys"; add "abc" device 3 years ago
  H. Peter Anvin e1878a396f Detect the presence of an ABC-bus by looking for a clock signal 3 years ago
  H. Peter Anvin c40501f76e SDRAM access from the ABC-bus 3 years ago
  H. Peter Anvin 3608e21183 Add extended devices (xdevs) that require > 128 bytes 3 years ago
  H. Peter Anvin f3992b85ad sdcard: run in slow mode (400 kHz during initialization) 3 years ago
  H. Peter Anvin 4cc5301813 sdcard: generalize the IP, instantiate for ESP32 SPI channel too 3 years ago
  H. Peter Anvin 518503fa99 iodev: centralize definitions and auto-generate boiler plate code 3 years ago
  H. Peter Anvin bc09800c11 fw: make sure to clear the timer IRQ counter on init... 3 years ago
  H. Peter Anvin 9535001a01 fw: force instructions in irqasm.S to be aligned 3 years ago
  H. Peter Anvin d3cac913de fw: prevent invalid linker relaxation in irqasm.S 3 years ago
  H. Peter Anvin 555a856ff4 fw: move .sdata/.sbss into the zero page 3 years ago
  H. Peter Anvin 211ec5e0c8 fw: set gp for the IRQ bank too 3 years ago
  H. Peter Anvin 2efc87efde Add irqasm.S... still no interrupts, but no crashes either... 3 years ago
  H. Peter Anvin cd15d8fd49 picorv32: revamp the Q registers to be a full bank switch 3 years ago
  H. Peter Anvin 75980f5efb fw: now working interrupt handling, periodic timer flashing LEDs 3 years ago
  H. Peter Anvin 2b261e54f6 fw: add interrupt support; use a linker script 3 years ago
  H. Peter Anvin 105317a04c sdcard: works now! (At least reading) 3 years ago
  H. Peter Anvin 6ead9a1ad1 sdcard: fix switching to high speed mode 3 years ago
  H. Peter Anvin 8a937a6f83 sdcard: now talking to the SD card; driver fixes still needed 3 years ago
  H. Peter Anvin 6a406133f0 Add sdcard and sysclock units; reshuffle address map 3 years ago
  H. Peter Anvin 6b8d647c0a fw: update SRAM_SIZE to 32K 3 years ago
  H. Peter Anvin 1f822e260c Change onboard fast SRAM from 8K to 32K 3 years ago
  H. Peter Anvin 152a913007 qsf: add spirom.sv; update boot.mif 3 years ago
  H. Peter Anvin a6e8bd9b0e fw: more detailed error messages for downloader 3 years ago
  H. Peter Anvin dce6ed79e1 fw, console: add flush function 3 years ago
  H. Peter Anvin 9bf7d10a84 tty: add status register and irq support; clean up iodev map 3 years ago
  H. Peter Anvin 03019163e4 spirom: revert uploader to arbitrary 8*n-byte bursts 3 years ago
  H. Peter Anvin 42f4ad6376 Make downloader work; use PLL for SDRAM clock offset 3 years ago
  H. Peter Anvin 925ec18e6d fw: add data download test 3 years ago