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nix-scripts/gluelogic/mirny-legacy-almazny.diff

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diff --git a/Makefile b/Makefile
index 667b8e7..ed97303 100644
--- a/Makefile
+++ b/Makefile
@@ -8,9 +8,15 @@ test:
.PHONY: build
build: build/mirny.vm6
+.PHONY: legacy_almazny
+legacy_almazny: build/mirny_legacy_almazny.vm6
+
build/mirny.vm6: mirny.py mirny_cpld.py
python mirny_impl.py
+build/mirny_legacy_almazny.vm6: mirny.py mirny_cpld.py
+ python mirny_impl.py --legacy-almazny
+
REV:=$(shell git describe --always --abbrev=8 --dirty)
.PHONY: release
diff --git a/README.md b/README.md
index 1bea35a..5e93809 100644
--- a/README.md
+++ b/README.md
@@ -1,23 +1,39 @@
-# Mirny CPLD code
+# Mirny CPLD gateware
-[Mirny overview](https://github.com/sinara-hw/mirny/wiki)
+## Hardware
+
+[![Hardware](https://github.com/sinara-hw/mirny/wiki/Mirny_v1.0_top_small.jpg)](https://github.com/sinara-hw/mirny/wiki)
[Mirny Schematics](https://github.com/sinara-hw/mirny/releases)
## Building
-Needs migen and ISE.
+Needs [migen](https://github.com/m-labs/migen) and [Xilinx ISE](https://www.xilinx.com/products/design-tools/ise-design-suite.html). Assumes ISE is installed in ``/opt/Xilinx``.
```
make
-# and then look at/use flash.sh or make flash
-
-# or use fxload and xc3sprog:
-/sbin/fxload -t fx2 -I /opt/Xilinx/14.7/ISE_DS/ISE/bin/lin64/xusb_xp2.hex -D /dev/bus/usb/001/*`cat /sys/bus/usb/devices/1-3/devnum` && sleep 10 && \
-xc3sprog -c xpc -m /opt/Xilinx/14.7/ISE_DS/ISE/xbr/data -v build/mirny.jed:w
-# look for "Verify: Success"
```
+## Flashing
+
+With Digilent [JTAG HS2](https://store.digilentinc.com/jtag-hs2-programming-cable/) cable:
+
+ - download firmware to dongle. Manually (adjust USB bus as needed):
+ ```
+ /sbin/fxload -t fx2 -I /opt/Xilinx/14.7/ISE_DS/ISE/bin/lin64/xusb_xp2.hex -D /dev/bus/usb/001/*`cat /sys/bus/usb/devices/1-3/devnum`
+ ```
+ or automatically via the ``udev`` rule:
+ ```
+ SUBSYSTEM=="usb", ACTION="add", ATTR{idVendor}=="0403", ATTR{idProduct}=="6014", ATTR{manufacturer}=="Digilent", RUN+="/usr/bin/fxload -v -t fx2 -I /opt/Xilinx/14.7/ISE_DS/ISE/bin/lin64/xusb_xp2.hex -D $tempnode"
+ ```
+
+ - install [xc3sprog](http://xc3sprog.sourceforge.net/)
+
+ - ``flash_xc3.sh jtaghs2``
+
+ - look for ``Verify: Success``
+
+
# License
GPLv3+
diff --git a/flash_xc3.sh b/flash_xc3.sh
index 4c8a94c..c84b4d6 100755
--- a/flash_xc3.sh
+++ b/flash_xc3.sh
@@ -1,8 +1,9 @@
#!/bin/bash
set -e
-set -x
-/sbin/fxload -t fx2 -I /opt/Xilinx/14.7/ISE_DS/ISE/bin/lin64/xusb_xp2.hex -D /dev/bus/usb/001/*`cat /sys/bus/usb/devices/1-7/devnum`
-sleep 7
-../xc3sprog/build/xc3sprog -c xpc -m /opt/Xilinx/14.7/ISE_DS/ISE/xbr/data -v build/mirny.jed:w
+XC3SPROG=xc3sprog
+CABLE=${1-xpc}
+
+set -x
+$XC3SPROG -c $CABLE -m /opt/Xilinx/14.7/ISE_DS/ISE/xbr/data -v build/mirny.jed:w
diff --git a/mirny.py b/mirny.py
index 82edca2..6dc2612 100644
--- a/mirny.py
+++ b/mirny.py
@@ -153,7 +153,6 @@ class SR(Module):
),
]
-
def intersection(a, b):
(aa, am), (ba, bm) = a, b
# TODO
@@ -182,26 +181,26 @@ class Mirny(Module):
SPI
---
- SPI xfer is ADR(7), WE(1), DAT(REG: 16, ATT: 8, PLL: 32)
-
- | ADR | TARGET |
- |--------+--------|
- | 0 | REG0 |
- | 1 | REG1 |
- | 2 | REG2 |
- | 3 | REG3 |
- | 4 | PLL0 |
- | 5 | PLL1 |
- | 6 | PLL2 |
- | 7 | PLL3 |
- | 8 | ATT0 |
- | 9 | ATT1 |
- | a | ATT2 |
- | b | ATT3 |
- | c | reserved |
- | d | reserved |
- | e | reserved |
- | f | reserved |
+ SPI xfer is ADR(7), WE(1), DAT(REG: 16, ATT: 8, PLL: 32, SR: 8)
+
+ | ADR | TARGET |
+ |-----+----------------------|
+ | 0 | REG0 |
+ | 1 | REG1 |
+ | 2 | REG2 |
+ | 3 | REG3 |
+ | 4 | PLL0 |
+ | 5 | PLL1 |
+ | 6 | PLL2 |
+ | 7 | PLL3 |
+ | 8 | ATT0 |
+ | 9 | ATT1 |
+ | a | ATT2 |
+ | b | ATT3 |
+ | c | (Legacy Almazny) SR1 |
+ | d | (Legacy Almazny) SR2 |
+ | e | (Legacy Almazny) SR3 |
+ | f | (Legacy Almazny) SR4 |
The SPI interface is CPOL=0, CPHA=0, SPI mode 0, 4-wire, full fuplex.
@@ -223,8 +222,8 @@ class Mirny(Module):
| Name | Width | Function |
|-----------+-------+------------------------------------|
| CE_N | 4 | PLL chip enable (bar) |
- | CLK_SEL | 2 | Selects CLK source: 0 OSC, 1 MMCX, |
- | | | 2 reserved, 3 SMA |
+ | CLK_SEL | 2 | Selects CLK source: |
+ | | | 0 OSC, 1 reserved, 2 MMCX, 3 SMA |
| DIV | 2 | Clock divider configuration: |
| | | 0: divide-by-one, |
| | | 1: reserved, |
@@ -234,6 +233,7 @@ class Mirny(Module):
| FSEN_N | 1 | LVDS fail safe, Type 2 (bar) |
| MUXOUT_EEM| 1 | route MUXOUT to EEM[4:8] |
| EEM_MEZZIO| 1 | route EEM[4:8] to MEZZ_IO[0:4] |
+ | ALMAZNY_OE| 1 | Almazny OE in legacy Almazny mode |
| Name | Width | Function |
|-----------+-------+------------------------------------|
@@ -250,7 +250,7 @@ class Mirny(Module):
The test points expose miscellaneous signals for debugging and are not part
of the protocol revision.
"""
- def __init__(self, platform):
+ def __init__(self, platform, legacy_almazny=False):
self.eem = eem = []
for i in range(8):
tsi = TSTriple()
@@ -292,7 +292,7 @@ class Mirny(Module):
self.sr.ext.cs.eq(eem[3].i),
]
- regs = [REG(), REG(width=12), REG(width=4), REG()]
+ regs = [REG(), REG(width=13), REG(width=4), REG()]
self.submodules += regs
for i, reg in enumerate(regs):
self.sr.connect(reg.bus, adr=i, mask=mask)
@@ -310,23 +310,47 @@ class Mirny(Module):
clk = platform.request("clk")
clk_div = TSTriple()
self.specials += clk_div.get_tristate(clk.div)
- # in_sel: 00: XO, 01: MMCX, 10: n/a (SMA+XO), 11: SMA
+ # in_sel: 00: XO, 01: n/a (SMA+XO), 10: MMCX, 11: SMA
# dividers: 00(z): 1, 01(z): 1, 10(low): 2, 11(high) 4
self.comb += [
Cat(clk.in_sel, clk_div.o, clk_div.oe).eq(regs[1].write[4:8]),
platform.request("fsen").eq(~regs[1].write[9]),
]
- for i, m in enumerate(platform.request("mezz_io")):
- tsi = TSTriple()
- self.specials += tsi.get_tristate(m)
+ if legacy_almazny:
+ almazny_io = platform.request("legacy_almazny_common")
+ almazny_adr = 0b1100 # 1100 - and then 1101, 1110, 1111 for sr 1-4
+ ext = Record(ext_layout)
+ self.sr.connect_ext(ext, almazny_adr, almazny_adr)
+ latches = AsyncRst(width=4, reset=0xF)
+ self.submodules += latches
+
self.comb += [
- tsi.o.eq(regs[3].write[i] | (0 if i >= 4 else
- (regs[1].write[11] & eem[i + 4].i))),
- regs[3].read[i].eq(tsi.i),
- tsi.oe.eq(regs[3].write[i + 8]),
- regs[3].read[i + 8].eq(tsi.oe),
+ latches.ce.eq(ext.cs),
+ almazny_io.clk.eq(ext.sck),
+ almazny_io.mosi.eq(ext.sdi),
+ almazny_io.srclr.eq(1)
]
+
+ for i in range(4):
+ almazny = platform.request("legacy_almazny", i)
+ self.sync += latches.i[i].eq(self.sr.bus.adr[:2] != i)
+ self.comb += [
+ almazny.latch.eq(latches.o[i]),
+ almazny.noe.eq(~regs[1].write[12])
+ ]
+
+ else:
+ for i, m in enumerate(platform.request("mezz_io")):
+ tsi = TSTriple()
+ self.specials += tsi.get_tristate(m)
+ self.comb += [
+ tsi.o.eq(regs[3].write[i] | (0 if i >= 4 else
+ (regs[1].write[11] & eem[i + 4].i))),
+ regs[3].read[i].eq(tsi.i),
+ tsi.oe.eq(regs[3].write[i + 8]),
+ regs[3].read[i + 8].eq(tsi.oe),
+ ]
for i in range(4):
rf_sw = platform.request("rf_sw", i)
diff --git a/mirny_cpld.py b/mirny_cpld.py
index 70fc164..a688d89 100644
--- a/mirny_cpld.py
+++ b/mirny_cpld.py
@@ -16,9 +16,33 @@ _io = [
# fail save LVDS enable, LVDS mode selection
# high: type 2 receiver, failsafe low
("fsen", 0, Pins("P80")),
-
+
+ # IO from 0 to 7
("mezz_io", 0, Pins("P57 P58 P59 P60 P61 P64 P68 P69")),
+ # legacy (v1.0-1.1) Almazny pins
+ ("legacy_almazny_common", 0,
+ Subsignal("mosi", Pins("P94")),
+ Subsignal("clk", Pins("P97")),
+ Subsignal("srclr", Pins("P60")),
+ ),
+ ("legacy_almazny", 0,
+ Subsignal("latch", Pins("P96")),
+ Subsignal("noe", Pins("P95")),
+ ),
+ ("legacy_almazny", 1,
+ Subsignal("latch", Pins("P100")),
+ Subsignal("noe", Pins("P98")),
+ ),
+ ("legacy_almazny", 2,
+ Subsignal("latch", Pins("P92")),
+ Subsignal("noe", Pins("P101")),
+ ),
+ ("legacy_almazny", 3,
+ Subsignal("latch", Pins("P57")),
+ Subsignal("noe", Pins("P58")),
+ ),
+
("clk", 0,
Subsignal("div", Pins("P53")),
Subsignal("in_sel", Pins("P54 P56")),
diff --git a/mirny_impl.py b/mirny_impl.py
index 0c42b0b..d7022dc 100644
--- a/mirny_impl.py
+++ b/mirny_impl.py
@@ -1,10 +1,23 @@
+import argparse
+
+def get_argparser():
+ parser = argparse.ArgumentParser(
+ description="Mirny CPLD firmware"
+ )
+ parser.add_argument("--legacy-almazny", action="store_true", default=False)
+
+ return parser
+
def main():
from mirny_cpld import Platform
from mirny import Mirny
+ args = get_argparser().parse_args()
+
p = Platform()
- mirny = Mirny(p)
- p.build(mirny, build_name="mirny", mode="cpld")
+ mirny = Mirny(p, args.legacy_almazny)
+ build_name = "mirny" if not args.legacy_almazny else "mirny_legacy_almazny"
+ p.build(mirny, build_name=build_name, mode="cpld")
if __name__ == "__main__":
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