From 2843105739db84851c3e9d2436c2c3c2c0563abf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Stensg=C3=A5rd?= <mastensg@mastensg.net>
Date: Wed, 16 Jul 2025 22:44:32 +0200
Subject: filter: transmit 16000 Hz signed 8 bit PCM over UART

---
 filter/Makefile | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 filter/Makefile

(limited to 'filter/Makefile')

diff --git a/filter/Makefile b/filter/Makefile
new file mode 100644
index 0000000..195fcbc
--- /dev/null
+++ b/filter/Makefile
@@ -0,0 +1,27 @@
+TOP = top
+VS = top.v ../cocotb_try/cic3_pdm.v
+
+all: check top.bin
+
+check:
+	verilator --lint-only --top $(TOP) $(VS)
+
+clean:
+	rm -f top.asc top.bin top.json
+
+gui:
+	nextpnr-ice40 --hx1k --package tq144 --json top.json --pcf top.pcf --asc top.asc --top $(TOP) --gui
+
+load: all
+	iceprog top.bin
+
+.PHONY: all check clean gui load
+
+top.asc: top.json top.pcf
+	nextpnr-ice40 --hx1k --package tq144 --json top.json --pcf top.pcf --asc top.asc --top $(TOP)
+
+top.bin: top.asc
+	icepack top.asc top.bin
+
+top.json: $(VS)
+	yosys -q -p "synth_ice40 -json top.json -top $(TOP)" $(VS)
-- 
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