varpa: initial public commit

1 files changed, 37 insertions, 0 deletions

diff --git a/firmware/inc/module/drain.h b/firmware/inc/module/drain.h
new file mode 100644
index 0000000..7b9d66d
--- /dev/null
+++ b/firmware/inc/module/drain.h
@@ -0,0 +1,37 @@
+/**
+ * 
+ * Author: Dylan Muller
+ * Copyright (c) 2025 
+ * All rights reserved.
+ * 
+ * - Commercial/IP use prohibited.
+ * - Attribution required.
+ * See License.txt
+ *
+ */
+
+#ifndef DRAIN_H_
+#define DRAIN_H_
+
+#include <stdint.h>
+
+#define DRAIN_PROBE_START 0 // mV
+#define DRAIN_PROBE_LIMIT 3000
+#define DRAIN_PROBE_INC_FINE 1
+#define DRAIN_PROBE_INC_COARSE 5
+#define DRAIN_PROBE_INC_THRESHOLD 100
+#define DRAIN_Q_AMP 100 // mA
+#define DRAIN_TEST_COUNT 10
+#define DRAIN_TEST_BOUNDARY 10
+#define DRAIN_POWER_SAMPLES 10
+#define DRAIN_LOOP_DELAY_US 1000
+#define DRAIN_SETPOINT_TIMEOUT_MS 1500
+#define DRAIN_POWER_LOW_LIM 0
+#define DRAIN_POWER_HIGH_LIM 3000
+#define DRAIN_POWER_MODULUS 50
+
+uint16_t drain_sweep_pwr(
+    int16_t target_fw_pwr
+);
+
+#endif