diff --git a/examples/obsolete/device/src/tusb_config.h b/examples/obsolete/device/src/tusb_config.h
index 7d32350ff..f33fb46ba 100644
--- a/examples/obsolete/device/src/tusb_config.h
+++ b/examples/obsolete/device/src/tusb_config.h
@@ -70,7 +70,6 @@
 
 //#define TUSB_CFG_OS                   TUSB_OS_NONE // be passed from IDE/command line for easy project switching
 //#define TUSB_CFG_OS_TASK_PRIO         0            // be passed from IDE/command line for easy project switching
-#define TUSB_CFG_TICKS_HZ             1000
 
 //--------------------------------------------------------------------+
 // USB RAM PLACEMENT
diff --git a/examples/obsolete/host/src/tusb_config.h b/examples/obsolete/host/src/tusb_config.h
index 04fd7e889..be1d5c7ed 100644
--- a/examples/obsolete/host/src/tusb_config.h
+++ b/examples/obsolete/host/src/tusb_config.h
@@ -71,8 +71,6 @@
 //#define TUSB_CFG_OS                   TUSB_OS_NONE // defined using eclipse build
 //#define TUSB_CFG_OS_TASK_PRIO         0            // defined using eclipse build
 
-#define TUSB_CFG_TICKS_HZ             1000
-
 //--------------------------------------------------------------------+
 // USB RAM PLACEMENT
 //--------------------------------------------------------------------+
diff --git a/hw/bsp/board.h b/hw/bsp/board.h
index aaedf27d6..2c566bb11 100644
--- a/hw/bsp/board.h
+++ b/hw/bsp/board.h
@@ -121,6 +121,8 @@
 //--------------------------------------------------------------------+
 #define CFG_UART_BAUDRATE    115200 ///< Baudrate for UART
 
+#define BOARD_TICKS_HZ       1000
+
 //--------------------------------------------------------------------+
 // Board Common API
 //--------------------------------------------------------------------+
diff --git a/hw/bsp/ea4357/board_ea4357.c b/hw/bsp/ea4357/board_ea4357.c
index bfd100e1e..963e7629c 100644
--- a/hw/bsp/ea4357/board_ea4357.c
+++ b/hw/bsp/ea4357/board_ea4357.c
@@ -65,12 +65,34 @@ enum {
   BOARD_BUTTON_COUNT = sizeof(buttons) / sizeof(buttons[0])
 };
 
+/*------------------------------------------------------------------*/
+/* TUSB HAL MILLISECOND
+ *------------------------------------------------------------------*/
+#if TUSB_CFG_OS == TUSB_OS_NONE
+
+volatile uint32_t system_ticks = 0;
+
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t tusb_hal_millis(void)
+{
+  return (system_ticks*1000) / BOARD_TICKS_HZ;
+}
+
+#endif
+
+/*------------------------------------------------------------------*/
+/* BOARD API
+ *------------------------------------------------------------------*/
 void board_init(void)
 {
   CGU_Init();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   //------------- USB -------------//
diff --git a/hw/bsp/hitex/board_hitex4350.c b/hw/bsp/hitex/board_hitex4350.c
index 4811f02f0..23e070a92 100644
--- a/hw/bsp/hitex/board_hitex4350.c
+++ b/hw/bsp/hitex/board_hitex4350.c
@@ -54,7 +54,7 @@
 void board_init(void)
 {
   CGU_Init();
-  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / BOARD_TICKS_HZ); // 1 msec tick timer
 
   //------------- USB Bus power HOST ONLY-------------//
   // Hitex VBUS0 is P2_3
diff --git a/hw/bsp/keil/board_mcb4300.c b/hw/bsp/keil/board_mcb4300.c
index 6addfb252..b9a3f4144 100644
--- a/hw/bsp/keil/board_mcb4300.c
+++ b/hw/bsp/keil/board_mcb4300.c
@@ -75,7 +75,7 @@ void board_init(void)
   CGU_Init();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   //------------- USB Bus power HOST ONLY-------------//
diff --git a/hw/bsp/lpcxpresso/board_lpclink2.c b/hw/bsp/lpcxpresso/board_lpclink2.c
index d59b211fb..5f6f18cb6 100644
--- a/hw/bsp/lpcxpresso/board_lpclink2.c
+++ b/hw/bsp/lpcxpresso/board_lpclink2.c
@@ -57,7 +57,7 @@ void board_init(void)
   CGU_Init();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE) / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   //------------- USB -------------//
diff --git a/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c b/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c
index eb8c39eda..79df45a36 100644
--- a/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c
+++ b/hw/bsp/lpcxpresso/board_lpcxpresso11u14.c
@@ -68,7 +68,7 @@ void board_init(void)
   SystemInit();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(SystemCoreClock / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(SystemCoreClock / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   GPIOInit();
diff --git a/hw/bsp/lpcxpresso11u68/board_lpcxpresso11u68.c b/hw/bsp/lpcxpresso11u68/board_lpcxpresso11u68.c
index ffdbc2706..5796c2341 100644
--- a/hw/bsp/lpcxpresso11u68/board_lpcxpresso11u68.c
+++ b/hw/bsp/lpcxpresso11u68/board_lpcxpresso11u68.c
@@ -59,7 +59,7 @@ void board_init(void)
   SystemInit();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(SystemCoreClock / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(SystemCoreClock / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   GPIOInit();
diff --git a/hw/bsp/lpcxpresso1347/board_lpcxpresso1347.c b/hw/bsp/lpcxpresso1347/board_lpcxpresso1347.c
index a0a615edc..c0a870d7e 100644
--- a/hw/bsp/lpcxpresso1347/board_lpcxpresso1347.c
+++ b/hw/bsp/lpcxpresso1347/board_lpcxpresso1347.c
@@ -69,7 +69,7 @@ void board_init(void)
   SystemInit();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(SystemCoreClock / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(SystemCoreClock / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   GPIOInit();
diff --git a/hw/bsp/lpcxpresso1769/board_lpcxpresso1769.c b/hw/bsp/lpcxpresso1769/board_lpcxpresso1769.c
index 39d669886..7aceb87f4 100644
--- a/hw/bsp/lpcxpresso1769/board_lpcxpresso1769.c
+++ b/hw/bsp/lpcxpresso1769/board_lpcxpresso1769.c
@@ -68,7 +68,7 @@ void board_init(void)
   SystemInit();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config(SystemCoreClock / TUSB_CFG_TICKS_HZ); // 1 msec tick timer
+  SysTick_Config(SystemCoreClock / BOARD_TICKS_HZ); // 1 msec tick timer
 #endif
 
   //------------- LED -------------//
diff --git a/hw/bsp/ngx/board_ngx4330.c b/hw/bsp/ngx/board_ngx4330.c
index 88212146f..63c72756e 100644
--- a/hw/bsp/ngx/board_ngx4330.c
+++ b/hw/bsp/ngx/board_ngx4330.c
@@ -71,7 +71,7 @@ void board_init(void)
   CGU_Init();
 
 #if TUSB_CFG_OS == TUSB_OS_NONE // TODO may move to main.c
-  SysTick_Config( CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE)/TUSB_CFG_TICKS_HZ );	/* 1 ms Timer */
+  SysTick_Config( CGU_GetPCLKFrequency(CGU_PERIPHERAL_M4CORE)/BOARD_TICKS_HZ );	/* 1 ms Timer */
 #endif
 
   //------------- USB Bus power HOST ONLY-------------//
diff --git a/tinyusb/common/timeout_timer.h b/tinyusb/common/timeout_timer.h
index 2de71ded3..f504cc91f 100644
--- a/tinyusb/common/timeout_timer.h
+++ b/tinyusb/common/timeout_timer.h
@@ -55,17 +55,15 @@ typedef struct {
   uint32_t interval;
 }timeout_timer_t;
 
-static inline void timeout_set(timeout_timer_t* tt, uint32_t msec) ATTR_ALWAYS_INLINE;
 static inline void timeout_set(timeout_timer_t* tt, uint32_t msec)
 {
-  tt->interval = osal_tick_from_msec(msec);
-  tt->start    = osal_tick_get();
+  tt->interval = msec;
+  tt->start    = osal_millis();
 }
 
-static inline bool timeout_expired(timeout_timer_t* tt) ATTR_ALWAYS_INLINE;
 static inline bool timeout_expired(timeout_timer_t* tt)
 {
-  return ( osal_tick_get() - tt->start ) >= tt->interval;
+  return ( osal_millis() - tt->start ) >= tt->interval;
 }
 
 #ifdef __cplusplus
diff --git a/tinyusb/osal/osal_common.h b/tinyusb/osal/osal_common.h
index 2d35e74b4..42ed6e77b 100644
--- a/tinyusb/osal/osal_common.h
+++ b/tinyusb/osal/osal_common.h
@@ -55,12 +55,6 @@ enum
   OSAL_TIMEOUT_WAIT_FOREVER = 0xFFFFFFFF
 };
 
-static inline uint32_t osal_tick_from_msec(uint32_t msec) ATTR_CONST ATTR_ALWAYS_INLINE;
-static inline uint32_t osal_tick_from_msec(uint32_t msec)
-{
-  return  (msec * TUSB_CFG_TICKS_HZ)/1000;
-}
-
 #ifdef __cplusplus
  }
 #endif
diff --git a/tinyusb/osal/osal_freeRTOS.h b/tinyusb/osal/osal_freeRTOS.h
index befad3fd0..f2fe668ae 100644
--- a/tinyusb/osal/osal_freeRTOS.h
+++ b/tinyusb/osal/osal_freeRTOS.h
@@ -59,7 +59,7 @@ extern "C" {
 //--------------------------------------------------------------------+
 // TICK API
 //--------------------------------------------------------------------+
-#define osal_tick_get xTaskGetTickCount
+#define osal_millis xTaskGetTickCount
 
 //--------------------------------------------------------------------+
 // TASK API
@@ -76,7 +76,7 @@ static inline osal_task_t osal_task_create(osal_func_t code, const char* name, u
 
 static inline void osal_task_delay(uint32_t msec)
 {
-  vTaskDelay( (TUSB_CFG_TICKS_HZ * msec) / 1000 );
+  vTaskDelay( pdMS_TO_TICKS(msec) );
 }
 
 //--------------------------------------------------------------------+
@@ -91,7 +91,7 @@ static inline osal_queue_t osal_queue_create(uint32_t depth, uint32_t item_size)
 
 static inline void osal_queue_receive (osal_queue_t const queue_hdl, void *p_data, uint32_t msec, tusb_error_t *p_error)
 {
-  uint32_t const ticks = (msec == OSAL_TIMEOUT_WAIT_FOREVER) ? portMAX_DELAY : osal_tick_from_msec(msec);
+  uint32_t const ticks = (msec == OSAL_TIMEOUT_WAIT_FOREVER) ? portMAX_DELAY : pdMS_TO_TICKS(msec);
 
   portBASE_TYPE result = (SCB->ICSR & SCB_ICSR_VECTACTIVE_Msk) ?  xQueueReceiveFromISR(queue_hdl, p_data, NULL) : xQueueReceive(queue_hdl, p_data, ticks);
   (*p_error) = ( result == pdPASS ) ? TUSB_ERROR_NONE : TUSB_ERROR_OSAL_TIMEOUT;
@@ -137,7 +137,7 @@ static inline bool osal_semaphore_post(osal_semaphore_t sem_hdl)
 
 static inline void osal_semaphore_wait(osal_semaphore_t sem_hdl, uint32_t msec, tusb_error_t *p_error)
 {
-  uint32_t const ticks = (msec == OSAL_TIMEOUT_WAIT_FOREVER) ? portMAX_DELAY : osal_tick_from_msec(msec);
+  uint32_t const ticks = (msec == OSAL_TIMEOUT_WAIT_FOREVER) ? portMAX_DELAY : pdMS_TO_TICKS(msec);
 
   BaseType_t result;
 
diff --git a/tinyusb/osal/osal_none.h b/tinyusb/osal/osal_none.h
index f150d5c34..0b73de4e9 100644
--- a/tinyusb/osal/osal_none.h
+++ b/tinyusb/osal/osal_none.h
@@ -53,7 +53,7 @@
 //--------------------------------------------------------------------+
 // TICK API
 //--------------------------------------------------------------------+
-#define osal_tick_get tusb_hal_tick_get
+#define osal_millis tusb_hal_millis
 
 //--------------------------------------------------------------------+
 // TASK API
@@ -97,9 +97,9 @@ static inline osal_task_t osal_task_create(osal_func_t code, const char* name, u
 
 #define osal_task_delay(msec) \
   do {\
-    _timeout = osal_tick_get();\
+    _timeout = osal_millis();\
     _state = __LINE__; case __LINE__:\
-      if ( _timeout + osal_tick_from_msec(msec) > osal_tick_get() ) \
+      if ( _timeout + msec > osal_millis() ) \
         return TUSB_ERROR_OSAL_WAITING;\
   }while(0)
 
@@ -164,10 +164,10 @@ static inline void osal_queue_flush(osal_queue_t const queue_hdl)
 
 #define osal_queue_receive(queue_hdl, p_data, msec, p_error) \
   do {\
-    _timeout = osal_tick_get();\
+    _timeout = osal_millis();\
     _state = __LINE__; case __LINE__:\
     if( queue_hdl->count == 0 ) {\
-      if ( (msec != OSAL_TIMEOUT_WAIT_FOREVER) && ( _timeout + osal_tick_from_msec(msec) <= osal_tick_get() )) /* time out */ \
+      if ( (msec != OSAL_TIMEOUT_WAIT_FOREVER) && ( _timeout + msec <= osal_millis()) ) /* time out */ \
         *(p_error) = TUSB_ERROR_OSAL_TIMEOUT;\
       else\
         return TUSB_ERROR_OSAL_WAITING;\
@@ -218,10 +218,10 @@ static inline void osal_semaphore_reset(osal_semaphore_t sem_hdl)
 
 #define osal_semaphore_wait(sem_hdl, msec, p_error) \
   do {\
-    _timeout = osal_tick_get();\
+    _timeout = osal_millis();\
     _state = __LINE__; case __LINE__:\
     if( sem_hdl->count == 0 ) {\
-      if ( ( ((uint32_t) (msec)) != OSAL_TIMEOUT_WAIT_FOREVER) && (_timeout + osal_tick_from_msec(msec) <= osal_tick_get()) ) /* time out */ \
+      if ( (msec != OSAL_TIMEOUT_WAIT_FOREVER) && (_timeout + msec <= osal_millis()) ) /* time out */ \
         *(p_error) = TUSB_ERROR_OSAL_TIMEOUT;\
       else\
         return TUSB_ERROR_OSAL_WAITING;\
diff --git a/tinyusb/portable/nordic/nrf5x/hal_nrf5x.c b/tinyusb/portable/nordic/nrf5x/hal_nrf5x.c
index 073f4ac36..4cb7f076e 100644
--- a/tinyusb/portable/nordic/nrf5x/hal_nrf5x.c
+++ b/tinyusb/portable/nordic/nrf5x/hal_nrf5x.c
@@ -81,7 +81,7 @@ void tusb_hal_int_disable(uint8_t rhport)
   NVIC_DisableIRQ(USBD_IRQn);
 }
 
-uint32_t tusb_hal_tick_get(void)
+uint32_t tusb_hal_millis(void)
 {
   //#define tick2ms(tck)         ( ( ((uint64_t)(tck)) * 1000) / configTICK_RATE_HZ )
   //return tick2ms( app_timer_cnt_get() );
diff --git a/tinyusb/portable/nxp/lpc43xx_lpc18xx/hal_lpc43xx.c b/tinyusb/portable/nxp/lpc43xx_lpc18xx/hal_lpc43xx.c
index ff7d32a3f..31481b742 100644
--- a/tinyusb/portable/nxp/lpc43xx_lpc18xx/hal_lpc43xx.c
+++ b/tinyusb/portable/nxp/lpc43xx_lpc18xx/hal_lpc43xx.c
@@ -53,22 +53,6 @@ enum {
   LPC43XX_USBMODE_VBUS_HIGH = 1
 };
 
-#if TUSB_CFG_OS == TUSB_OS_NONE
-
-volatile uint32_t system_ticks = 0;
-
-void SysTick_Handler (void)
-{
-  system_ticks++;
-}
-
-uint32_t tusb_hal_tick_get(void)
-{
-  return system_ticks;
-}
-
-#endif
-
 void tusb_hal_int_enable(uint8_t rhport)
 {
   NVIC_EnableIRQ(rhport ? USB1_IRQn : USB0_IRQn);
diff --git a/tinyusb/tusb_hal.h b/tinyusb/tusb_hal.h
index 98ec79f97..0025bf844 100644
--- a/tinyusb/tusb_hal.h
+++ b/tinyusb/tusb_hal.h
@@ -75,7 +75,7 @@ void tusb_hal_int_enable(uint8_t rhport);
  */
 void tusb_hal_int_disable(uint8_t rhport);
 
-uint32_t tusb_hal_tick_get(void);
+uint32_t tusb_hal_millis(void);
 
 #ifdef __cplusplus
  }