fast-servo/pyfastservo/adc.py

@@ -21,7 +21,7 @@ import mmap
 import os
 
 import spidev
-from pyfastservo.common import (
+from common import (
     ADC_AFE_CTRL_ADDR,
     ADC_BITSLIP_ADDR,
     ADC_CH0_HIGH_ADDR,

fast-servo/pyfastservo/common.py

@@ -22,8 +22,8 @@ MAP_SIZE = 0x1000
 MAP_MASK = 0xFFF
 PAGESIZE = 0x1000
 
-# LINIEN_OFFSET = 0x0
-LINIEN_OFFSET = 0x300000
+LINIEN_OFFSET = 0x0
+# LINIEN_OFFSET = 0x300000
 
 # ----------------------------------------------------------------
 # FRONT PANEL LEDS REGISTER ADDRESSES

fast-servo/pyfastservo/dac.py

@@ -21,7 +21,7 @@ import mmap
 import os
 
 import spidev
-from pyfastservo.common import (
+from common import (
     CH0_HIGH_WORD_ADDR,
     CH0_LOW_WORD_ADDR,
     CH1_HIGH_WORD_ADDR,

fast-servo/pyfastservo/fp_leds.py

@@ -21,7 +21,7 @@ import mmap
 import os
 import time
 
-from pyfastservo.common import (
+from common import (
     LED0_BASE_ADDR,
     LED1_BASE_ADDR,
     LED2_BASE_ADDR,

fast-servo/pyfastservo/initialize.py

@@ -17,7 +17,9 @@
 # You should have received a copy of the GNU General Public License
 # along with this program. If not, see <https://www.gnu.org/licenses/>.
 
-from pyfastservo import adc, si5340, dac
+import adc
+import si5340
+import dac
 
 def main():
     si5340.configure_si5340()

flake.nix

@@ -180,27 +180,6 @@
         '';
       };
 
-      pyfastservo = pkgs-armv7l.python3Packages.buildPythonPackage rec {
-        name = "pyfastservo";
-        src = ./fast-servo;
-        preBuild = ''
-          cat > setup.py << EOF
-          from setuptools import setup
-
-          setup(
-            name="pyfastservo",
-            packages=["pyfastservo"],
-            install_requires=["spidev", "smbus2"],
-            entry_points = {"console_scripts": ["fp_leds=pyfastservo.fp_leds:main"]},
-          )
-          EOF
-        '';
-        propagatedBuildInputs = with pkgs-armv7l.python3Packages; [
-          spidev
-          smbus2
-        ];
-      };
-
       mkbootimage = pkgs.stdenv.mkDerivation {
         pname = "mkbootimage";
         version = "2.3dev";
@@ -230,25 +209,8 @@
           extraModules = [
             "${patched-not-os}/zynq_image.nix"
           ] ++ pkgs.lib.optionals (board == "fast-servo") [
-            ({ config, pkgs, lib, ... }: {
-              environment.systemPackages = [
-                linien-server
-                (pkgs.python3.withPackages(ps: [ pyfastservo ]))
-              ];
-              boot.postBootCommands = lib.mkAfter ''
-
-                # Program the FPGA
-                set +x
-                echo "Loading bitstream into SRAM..."
-                echo 0 > /sys/class/fpga_manager/fpga0/flags
-                mkdir -p /lib/firmware
-                cp ${fast-servo-gateware}/gateware.bin /lib/firmware/
-                echo gateware.bin > /sys/class/fpga_manager/fpga0/firmware
-
-                # Run device init scripts
-                echo "Initializing clock generator, ADC, and DAC..."
-                python3 -m pyfastservo.initialize
-              '';
+            ({ config, pkgs, ... }: {
+              environment.systemPackages = [ linien-server ];
             })];
           system = "x86_64-linux";
           inherit crossSystem;
@@ -426,7 +388,7 @@
             BASE=$(realpath $(dirname $0))
 
             qemu-img convert -O qcow2 -f raw -o preallocation=metadata $BASE/sd-image.img $IMGDIR/sd-sparse.qcow2
-            qemu-img create -F qcow2 -f qcow2 -b $IMGDIR/sd-sparse.qcow2 $IMGDIR/sd-overlay.qcow2 2G
+            qemu-img create -F qcow2 -f qcow2 -b $IMGDIR/sd-sparse.qcow2 $IMGDIR/sd-overlay.qcow2 1G
 
             # Some command arguments are based from samples in Xilinx QEMU User Documentation
             # See: https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/821854273/Running+Bare+Metal+Applications+on+QEMU