 H. Peter Anvin
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bc09800c11
fw: make sure to clear the timer IRQ counter on init...
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3 years ago |
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H. Peter Anvin
|
9535001a01
fw: force instructions in irqasm.S to be aligned
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3 years ago |
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H. Peter Anvin
|
d3cac913de
fw: prevent invalid linker relaxation in irqasm.S
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3 years ago |
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H. Peter Anvin
|
555a856ff4
fw: move .sdata/.sbss into the zero page
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3 years ago |
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H. Peter Anvin
|
211ec5e0c8
fw: set gp for the IRQ bank too
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3 years ago |
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H. Peter Anvin
|
2efc87efde
Add irqasm.S... still no interrupts, but no crashes either...
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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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bcefeb445b
Switch to aggressive optimization to improve timing
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3 years ago |
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H. Peter Anvin
|
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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75980f5efb
fw: now working interrupt handling, periodic timer flashing LEDs
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3 years ago |
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H. Peter Anvin
|
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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8ead1845e1
fpga/sysclock: fix off-by-one in periodic pulse generation
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3 years ago |
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H. Peter Anvin
|
f48fe1c4cf
fpga: disable pull resistors for SPI to flash chip
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3 years ago |
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H. Peter Anvin
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ea8bf559a9
picorv32: fix aliasing of mret = retirq
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3 years ago |
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H. Peter Anvin
|
7f9ba1c3cd
Update FPGA generated files
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3 years ago |
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H. Peter Anvin
|
2b261e54f6
fw: add interrupt support; use a linker script
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3 years ago |
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H. Peter Anvin
|
0cf198bfb2
picorv32: have maskirq take a control mask; let mret = retirq
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3 years ago |
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H. Peter Anvin
|
105317a04c
sdcard: works now! (At least reading)
|
3 years ago |
|
H. Peter Anvin
|
6ead9a1ad1
sdcard: fix switching to high speed mode
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3 years ago |
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H. Peter Anvin
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8a937a6f83
sdcard: now talking to the SD card; driver fixes still needed
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3 years ago |
|
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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9093b88195
Add ELM-Chan FatFS 0.14b explicitly
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3 years ago |
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H. Peter Anvin
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3673cdd132
Remove fatfs as a submodule. It is small and needs edits.
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3 years ago |
|
H. Peter Anvin
|
65f412c5d0
Add sdcard unit; currently SPI based
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3 years ago |
|
H. Peter Anvin
|
0b0eec607b
spirom: fix data corruption on reader stall
|
3 years ago |
|
H. Peter Anvin
|
72af3bd711
max80.sdc: multicycle path between sdram_clk and sr_clk (why?)
|
3 years ago |
|
H. Peter Anvin
|
e3d2be2211
fpga: don't generate .jam file
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3 years ago |
|
H. Peter Anvin
|
e32df0c25b
Remove max80.map from tree
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3 years ago |
|
H. Peter Anvin
|
269914ae92
Remove .jam file - it is text and so messes up diffs; unused
|
3 years ago |
|
H. Peter Anvin
|
6b8d647c0a
fw: update SRAM_SIZE to 32K
|
3 years ago |
