Move cpuFrequencyDivider to config::stepTimerFrequencyDivider

src/config/config.h

@@ -44,6 +44,9 @@ static constexpr uint16_t minStepRate = 120;
 /// Size for the motion planner block buffer size
 static constexpr uint8_t blockBufferSize = 2;
 
+/// Step timer frequency divider (F = F_CPU / divider)
+static constexpr uint8_t stepTimerFrequencyDivider = 8;
+
 /// Idler configuration
 static constexpr AxisConfig idler = {
     .dirOn = true,

src/modules/pulse_gen.cpp

@@ -104,7 +104,7 @@ bool PulseGen::PlanMoveTo(pos_t target, steps_t feed_rate) {
 
     // Acceleration of the segment, in steps/sec^2
     block->acceleration = acceleration;
-    block->acceleration_rate = block->acceleration * (rate_t)((float)F_CPU / (F_CPU / speed_table::cpuFrequencyDivider));
+    block->acceleration_rate = block->acceleration * (rate_t)((float)F_CPU / (F_CPU / config::stepTimerFrequencyDivider));
 
     // Perform the trapezoid calculations
     CalculateTrapezoid(block, max_jerk, max_jerk);

src/modules/speed_table.h

@@ -12,8 +12,7 @@ namespace speed_table {
 typedef uint16_t st_timer_t;
 
 /// CPU timer frequency divider required for the speed tables
-static constexpr uint8_t cpuFrequencyDivider = 8;
-static_assert(F_CPU / cpuFrequencyDivider == 2000000,
+static_assert(F_CPU / config::stepTimerFrequencyDivider == 2000000,
     "speed tables not compatible for the requested frequency");
 
 /// Lookup table for rates equal or higher than 8*256

tests/unit/modules/speed_table/test_speed_table.cpp

@@ -6,7 +6,7 @@ using Catch::Matchers::Equals;
 using namespace modules::speed_table;
 
 // The following reference values are calculated for 2MHz timer
-static_assert(F_CPU / cpuFrequencyDivider == 2000000,
+static_assert(F_CPU / config::stepTimerFrequencyDivider == 2000000,
     "speed tables not compatible for the requested frequency");
 
 static const st_timer_t reference[][3] = {