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-rw-r--r--nmigen_boards/icebreaker.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/nmigen_boards/icebreaker.py b/nmigen_boards/icebreaker.py
index 5032346..39d82d5 100644
--- a/nmigen_boards/icebreaker.py
+++ b/nmigen_boards/icebreaker.py
@@ -78,7 +78,7 @@ class ICEBreakerPlatform(LatticeICE40Platform):
def toolchain_program(self, products, name):
iceprog = os.environ.get("ICEPROG", "iceprog")
with products.extract("{}.bin".format(name)) as bitstream_filename:
- subprocess.run([iceprog, bitstream_filename], check=True)
+ subprocess.check_call([iceprog, bitstream_filename])
if __name__ == "__main__":