diff --git a/demos/STM32/RT-STM32F446ZE-NUCLEO144/debug/RT-STM32F446ZE-NUCLEO144 (OpenOCD, Flash and Run).launch b/demos/STM32/RT-STM32F446ZE-NUCLEO144/debug/RT-STM32F446ZE-NUCLEO144 (OpenOCD, Flash and Run).launch
index 9f9c83200..89c8e86d3 100644
--- a/demos/STM32/RT-STM32F446ZE-NUCLEO144/debug/RT-STM32F446ZE-NUCLEO144 (OpenOCD, Flash and Run).launch	
+++ b/demos/STM32/RT-STM32F446ZE-NUCLEO144/debug/RT-STM32F446ZE-NUCLEO144 (OpenOCD, Flash and Run).launch	
@@ -33,7 +33,7 @@
 <intAttribute key="org.eclipse.cdt.launch.ATTR_BUILD_BEFORE_LAUNCH_ATTR" value="2"/>
 <stringAttribute key="org.eclipse.cdt.launch.COREFILE_PATH" value=""/>
 <stringAttribute key="org.eclipse.cdt.launch.DEBUGGER_REGISTER_GROUPS" value=""/>
-<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList/&gt;"/>
+<stringAttribute key="org.eclipse.cdt.launch.FORMAT" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&lt;contentList&gt;&lt;content id=&quot;r2-(format)&quot; val=&quot;4&quot;/&gt;&lt;/contentList&gt;"/>
 <stringAttribute key="org.eclipse.cdt.launch.GLOBAL_VARIABLES" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;globalVariableList/&gt;&#10;"/>
 <stringAttribute key="org.eclipse.cdt.launch.MEMORY_BLOCKS" value="&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;no&quot;?&gt;&#10;&lt;memoryBlockExpressionList/&gt;&#10;"/>
 <stringAttribute key="org.eclipse.cdt.launch.PROGRAM_NAME" value="./build/ch.elf"/>
diff --git a/demos/STM32/RT-STM32F446ZE-NUCLEO144/main.c b/demos/STM32/RT-STM32F446ZE-NUCLEO144/main.c
index 33e022883..bc6222035 100644
--- a/demos/STM32/RT-STM32F446ZE-NUCLEO144/main.c
+++ b/demos/STM32/RT-STM32F446ZE-NUCLEO144/main.c
@@ -34,13 +34,13 @@ static THD_FUNCTION(Thread1, arg) {
     palSetLine(LINE_LED2);
     chThdSleepMilliseconds(50);
     palSetLine(LINE_LED3);
-    chThdSleepMilliseconds(200);
+    chThdSleepMilliseconds(150);
     palClearLine(LINE_LED1);
     chThdSleepMilliseconds(50);
     palClearLine(LINE_LED2);
     chThdSleepMilliseconds(50);
     palClearLine(LINE_LED3);
-    chThdSleepMilliseconds(200);
+    chThdSleepMilliseconds(150);
   }
 }
 
diff --git a/os/hal/ports/STM32/STM32F4xx/hal_lld.c b/os/hal/ports/STM32/STM32F4xx/hal_lld.c
index 1cfa9c49c..8f3aba7db 100644
--- a/os/hal/ports/STM32/STM32F4xx/hal_lld.c
+++ b/os/hal/ports/STM32/STM32F4xx/hal_lld.c
@@ -288,12 +288,10 @@ void stm32_clock_init(void) {
 #endif
 #if !defined(STM32F413xx)
     RCC->DCKCFGR = dckcfgr |
-                   STM32_TIMPRE | STM32_PLLSAIDIVR |
-                   STM32_PLLSAIDIVQ | STM32_PLLI2SDIVQ;
+                   STM32_TIMPRE | STM32_PLLSAIDIVQ | STM32_PLLI2SDIVQ;
 #else
     RCC->DCKCFGR = dckcfgr |
-                   STM32_TIMPRE |
-                   STM32_PLLDIVR | STM32_PLLI2SDIVR;
+                   STM32_TIMPRE | STM32_PLLDIVR | STM32_PLLI2SDIVR;
 #endif
   }
 #endif
diff --git a/os/hal/ports/STM32/STM32F4xx/hal_lld.h b/os/hal/ports/STM32/STM32F4xx/hal_lld.h
index cc5f1ee7b..87061fe7d 100644
--- a/os/hal/ports/STM32/STM32F4xx/hal_lld.h
+++ b/os/hal/ports/STM32/STM32F4xx/hal_lld.h
@@ -204,40 +204,20 @@
  * @brief   Clock of timers connected to APB1
  *          (Timers 2, 3, 4, 5, 6, 7, 12, 13, 14).
  */
-#if !defined(STM32F446xx) || defined(__DOXYGEN__)
 #if (STM32_PPRE1 == STM32_PPRE1_DIV1) || defined(__DOXYGEN__)
 #define STM32_TIMCLK1               (STM32_PCLK1 * 1)
 #else
 #define STM32_TIMCLK1               (STM32_PCLK1 * 2)
 #endif
-#else /* defined(STM32F446xx) */
-#if STM32_PPRE1 == STM32_PPRE1_DIV1
-#define STM32_TIMCLK1               (STM32_PCLK1 * 1)
-#elif STM32_PPRE1 == STM32_PPRE1_DIV2
-#define STM32_TIMCLK1               (STM32_PCLK1 * 2)
-#else
-#define STM32_TIMCLK1               (STM32_PCLK1 * 4)
-#endif
-#endif /* defined(STM32F446xx) */
 
 /**
  * @brief   Clock of timers connected to APB2 (Timers 1, 8, 9, 10, 11).
  */
-#if !defined(STM32F446xx) || defined(__DOXYGEN__)
 #if (STM32_PPRE2 == STM32_PPRE2_DIV1) || defined(__DOXYGEN__)
 #define STM32_TIMCLK2               (STM32_PCLK2 * 1)
 #else
 #define STM32_TIMCLK2               (STM32_PCLK2 * 2)
 #endif
-#else /* defined(STM32F446xx) */
-#if STM32_PPRE2 == STM32_PPRE2_DIV1
-#define STM32_TIMCLK2               (STM32_PCLK2 * 1)
-#elif STM32_PPRE2 == STM32_PPRE2_DIV2
-#define STM32_TIMCLK2               (STM32_PCLK2 * 2)
-#else
-#define STM32_TIMCLK2               (STM32_PCLK2 * 4)
-#endif
-#endif /* defined(STM32F446xx) */
 
 #else /* STM32_HAS_RCC_DCKCFGR && (STM32_TIMPRE == STM32_TIMPRE_HCLK) */
 #if (STM32_PPRE1 == STM32_PPRE1_DIV1) ||                                    \
diff --git a/readme.txt b/readme.txt
index 62af28253..940e497a5 100644
--- a/readme.txt
+++ b/readme.txt
@@ -196,8 +196,6 @@
 - EX:  Updated LIS302DL to 1.1.0 (backported to 18.2.1).
 - EX:  Updated LPS25H to 1.1.0 (backported to 18.2.1).
 - EX:  Updated LSM303DLHC to 1.1.0 (backported to 18.2.1).
-- HAL: Fixed invalid timer frequency calculation for STM32F446 (bug #1002)
-       (backported to 18.2.2 and 17.6.5).
 - HAL: Fixed invalid checks in STM32H7 HAL (bug #1000)
        (backported to 18.2.2).
 - OTH: Fixed problem in STM32H743 GCC linker file (bug #998)