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-rw-r--r--machxo2/examples/bitstream.py17
1 files changed, 17 insertions, 0 deletions
diff --git a/machxo2/examples/bitstream.py b/machxo2/examples/bitstream.py
new file mode 100644
index 00000000..7f0b5c07
--- /dev/null
+++ b/machxo2/examples/bitstream.py
@@ -0,0 +1,17 @@
+from write_fasm import *
+from simple_config import K
+
+# Need to tell FASM generator how to write parameters
+# (celltype, parameter) -> ParameterConfig
+param_map = {
+ ("GENERIC_SLICE", "K"): ParameterConfig(write=False),
+ ("GENERIC_SLICE", "INIT"): ParameterConfig(write=True, numeric=True, width=2**K),
+ ("GENERIC_SLICE", "FF_USED"): ParameterConfig(write=True, numeric=True, width=1),
+
+ ("GENERIC_IOB", "INPUT_USED"): ParameterConfig(write=True, numeric=True, width=1),
+ ("GENERIC_IOB", "OUTPUT_USED"): ParameterConfig(write=True, numeric=True, width=1),
+ ("GENERIC_IOB", "ENABLE_USED"): ParameterConfig(write=True, numeric=True, width=1),
+}
+
+with open("blinky.fasm", "w") as f:
+ write_fasm(ctx, param_map, f)