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microwatt/fpga
Michael Neuling 5aaa63ee3b Add PLL for ECP5 device
Means we can synthesize at 40Mhz (where we currently make timing) and
our UART still works at 115200 baud.

Tested working hello world unmodified with ECP5 eval board. Orange
Crab is updated but is untested.

Signed-off-by: Michael Neuling <mikey@neuling.org>
5 years ago
..
LICENSE
arty_a7.xdc uart: Import and hook up opencore 16550 compatible UART 5 years ago
clk_gen_bypass.vhd
clk_gen_ecp5.vhd Add PLL for ECP5 device 5 years ago
clk_gen_mcmm.vhd
clk_gen_plle2.vhd
cmod_a7-35.xdc
firmware.hex
hello_world.hex hello_world: Use new headers and frequency from syscon 5 years ago
main_bram.vhdl Fix some ghdlsynth issues with fpga_bram 5 years ago
nexys-video.xdc spi: Add SPI Flash controller 5 years ago
nexys_a7.xdc
pp_fifo.vhd pp_fifo: Fix full fifo losing all data on simultaneous push & pop 5 years ago
pp_soc_uart.vhd uart: Remove combinational loops on ack and stall signal 5 years ago
pp_utilities.vhd
soc_reset.vhdl soc_reset: Use counters, add synchronizers 5 years ago
soc_reset_tb.vhdl Exit cleanly from testbench on success 5 years ago
top-arty.vhdl uart: Make 16550 the default 5 years ago
top-generic.vhdl uart: Make 16550 the default 5 years ago
top-nexys-video.vhdl uart: Make 16550 the default 5 years ago