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| author | Aled Cuda <aledvirgil@gmail.com> | 2020-06-27 21:27:36 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-06-28 04:27:36 +0000 |
| commit | d42a55f9b3989e32b3867a796b36b0819636194e (patch) | |
| tree | 17571d8b92f40c7776c978a0ec883427633c466e | |
| parent | ca62124c551f207fad279fe29948c177663ae4ad (diff) | |
ecp5_evn: add SPI Flash, UART, and EXTCLK peripherals
| -rw-r--r-- | nmigen_boards/ecp5_5g_evn.py | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/nmigen_boards/ecp5_5g_evn.py b/nmigen_boards/ecp5_5g_evn.py index 9639b14..d0625de 100644 --- a/nmigen_boards/ecp5_5g_evn.py +++ b/nmigen_boards/ecp5_5g_evn.py @@ -47,6 +47,10 @@ class ECP55GEVNPlatform(LatticeECP5Platform): Resource("clk12", 0, Pins("A10", dir="i"), Clock(12e6), Attrs(IO_TYPE="LVCMOS33")), + # By default this CLK is not populated, see User Manual Section 4. + Resource("extclk", 0, Pins("B11", dir="i"), + Attrs(IO_TYPE="LVCMOS33")), + *LEDResources(pins="A13 A12 B19 A18 B18 C17 A17 B17", invert=True, attrs=Attrs(IO_TYPE=bank1_iostandard)), *ButtonResources(pins="P4", invert=True, @@ -56,6 +60,20 @@ class ECP55GEVNPlatform(LatticeECP5Platform): *SwitchResources(pins={4: "E15", 5: "D16", 6: "B16", 7: "C16", 8: "A16"}, invert=True, attrs=Attrs(IO_TYPE=bank1_iostandard)), + # In order to use the UART as a UART you need to swap two resistor jumpers, + # and potentially reconfigure the onboard FTDI chip, see section 6.2 in the + # User Manual for hardware instructions, and + # https://github.com/trabucayre/fixFT2232_ecp5evn to reconfigure the FTDI. + UARTResource(0, + rx="P2", tx="P3", + attrs=Attrs(IO_TYPE=bank6_iostandard, PULLMODE="UP") + ), + + *SPIFlashResources(0, + cs="R2", clk="U3", miso="V2", mosi="W2", wp="Y2", hold="W1", + attrs=Attrs(IO_STANDARD="LVCMOS33") + ), + Resource("serdes", 0, Subsignal("tx", DiffPairs("W4", "W5", dir="o")), Subsignal("rx", DiffPairs("Y5", "Y6", dir="i")), |