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-rw-r--r--sw/dart-70/src/main.rs2
-rw-r--r--sw/dart-70/src/state.rs2
2 files changed, 2 insertions, 2 deletions
diff --git a/sw/dart-70/src/main.rs b/sw/dart-70/src/main.rs
index 7d6a789..77f6044 100644
--- a/sw/dart-70/src/main.rs
+++ b/sw/dart-70/src/main.rs
@@ -260,7 +260,7 @@ fn main() -> ! {
let encoder_count : u16 = qei.count();
if encoder_count != last_encoder_count {
- let delta = encoder_count.wrapping_sub(last_encoder_count);
+ let delta = last_encoder_count.wrapping_sub(encoder_count);
let delta = if delta > 0x7FFF { delta as i32 - 0x10000 } else { delta as i32 };
let require_bfo_update = cortex_m::interrupt::free(|_cs| {
diff --git a/sw/dart-70/src/state.rs b/sw/dart-70/src/state.rs
index 38db150..c38f75d 100644
--- a/sw/dart-70/src/state.rs
+++ b/sw/dart-70/src/state.rs
@@ -1,7 +1,7 @@
pub const VHF_BAND_EDGE : u32 = 70_000_000;
pub const VHF_INITIAL_VFO : u32 = 70_300_000;
// Values below are measured with the assembled XTAL filter
-pub const XTAL_FILT_FREQ : u32 = 11_057_510;
+pub const XTAL_FILT_FREQ : u32 = 11_057_500;
pub const BFO_LSB : u32 = XTAL_FILT_FREQ + 1_400;
pub const BFO_USB : u32 = XTAL_FILT_FREQ - 1_400;
pub const BFO_CW : u32 = XTAL_FILT_FREQ - 1_400;