Merge pull request #9803 from iNavFlight/dzikuvx-remove-upderclock

Remove unused USE_UNDERCLOCK define and related code

Author: DzikuVx

docs/Settings.md

@@ -572,16 +572,6 @@ Control rate profile to switch to when the battery profile is selected, 0 to dis
 
 ---
 
-### cpu_underclock
-
-This option is only available on certain architectures (F3 CPUs at the moment). It makes CPU clock lower to reduce interference to long-range RC systems working at 433MHz
-
-| Default | Min | Max |
-| --- | --- | --- |
-| OFF | OFF | ON |
-
----
-
 ### cruise_power
 
 Power draw at cruise throttle used for remaining flight time/distance estimation in 0.01W unit

src/main/drivers/system.h

@@ -21,7 +21,6 @@
 #include <stdbool.h>
 
 void systemInit(void);
-void systemClockSetup(uint8_t cpuUnderclock);
 
 typedef enum {
     FAILURE_DEVELOPER = 0,

src/main/drivers/system_at32f43x.c

@@ -114,12 +114,6 @@ uint32_t systemBootloaderAddress(void)
     //return system_isr_vector_table_base;
 }
 
-void systemClockSetup(uint8_t cpuUnderclock)
-{
-    (void)cpuUnderclock;
-    // This is a stub
-}
-
 void systemInit(void)
 {
     //config system clock to 288mhz usb 48mhz

src/main/drivers/system_stm32f4xx.c

@@ -143,12 +143,6 @@ uint32_t systemBootloaderAddress(void)
     return 0x1FFF0000;
 }
 
-void systemClockSetup(uint8_t cpuUnderclock)
-{
-    (void)cpuUnderclock;
-    // This is a stub
-}
-
 void systemInit(void)
 {
     SetSysClock();

src/main/drivers/system_stm32f7xx.c

@@ -66,12 +66,6 @@ uint32_t systemBootloaderAddress(void)
     return 0x1FF00000;
 }
 
-void systemClockSetup(uint8_t cpuUnderclock)
-{
-    (void)cpuUnderclock;
-    // This is a stub
-}
-
 void systemInit(void)
 {
     checkForBootLoaderRequest();

src/main/drivers/system_stm32h7xx.c

@@ -60,12 +60,6 @@ uint32_t systemBootloaderAddress(void)
 #endif
 }
 
-void systemClockSetup(uint8_t cpuUnderclock)
-{
-    (void)cpuUnderclock;
-    // This is a stub
-}
-
 void systemInit(void)
 {
     checkForBootLoaderRequest();

src/main/fc/config.c

@@ -115,9 +115,6 @@ PG_RESET_TEMPLATE(systemConfig_t, systemConfig,
 #endif
 #ifdef USE_I2C
     .i2c_speed = SETTING_I2C_SPEED_DEFAULT,
-#endif
-#ifdef USE_UNDERCLOCK
-    .cpuUnderclock = SETTING_CPU_UNDERCLOCK_DEFAULT,
 #endif
     .throttle_tilt_compensation_strength = SETTING_THROTTLE_TILT_COMP_STR_DEFAULT,      // 0-100, 0 - disabled
     .craftName = SETTING_NAME_DEFAULT,

src/main/fc/config.h

@@ -76,9 +76,6 @@ typedef struct systemConfig_s {
 #endif
 #ifdef USE_I2C
     uint8_t i2c_speed;
-#endif
-#ifdef USE_UNDERCLOCK
-    uint8_t cpuUnderclock;
 #endif
     uint8_t throttle_tilt_compensation_strength;    // the correction that will be applied at throttle_correction_angle.
     char craftName[MAX_NAME_LENGTH + 1];

src/main/fc/fc_init.c

@@ -229,13 +229,6 @@ void init(void)
     readEEPROM();
     resumeRxSignal();
 
-#ifdef USE_UNDERCLOCK
-    // Re-initialize system clock to their final values (if necessary)
-    systemClockSetup(systemConfig()->cpuUnderclock);
-#else
-    systemClockSetup(false);
-#endif
-
 #ifdef USE_I2C
     i2cSetSpeed(systemConfig()->i2c_speed);
 #endif

src/main/fc/settings.yaml

@@ -3755,12 +3755,6 @@ groups:
         default_value: "400KHZ"
         condition: USE_I2C
         table: i2c_speed
-      - name: cpu_underclock
-        description: "This option is only available on certain architectures (F3 CPUs at the moment). It makes CPU clock lower to reduce interference to long-range RC systems working at 433MHz"
-        default_value: OFF
-        field: cpuUnderclock
-        condition: USE_UNDERCLOCK
-        type: bool
       - name: debug_mode
         description: "Defines debug values exposed in debug variables (developer / debugging setting)"
         default_value: "NONE"