Split app code and third party libraries

1 files changed, 56 insertions, 0 deletions

diff --git a/app/ltimers/ltimers_config.c b/app/ltimers/ltimers_config.c
new file mode 100644
index 0000000..a30b36f
--- /dev/null
+++ b/app/ltimers/ltimers_config.c
@@ -0,0 +1,56 @@
+#include "ltimers_config.h"
+
+#include "stm32f0xx_conf.h"
+
+
+// ----------------------------------------------------------------------------
+// Инициализация аппаратного таймера для генерирования прерываний каждую 1мс
+// ----------------------------------------------------------------------------
+void LTimersConfig ( void )
+{
+  NVIC_InitTypeDef         NVIC_InitStructure;
+  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
+
+  /* LTIMER_TIMx clock enable */
+  LTIMER_RCC_APBxPeriphClockCmd ( LTIMER_TIM_RCC, ENABLE );
+
+  /* Enable the LTIMER_TIMx gloabal Interrupt */
+  NVIC_InitStructure.NVIC_IRQChannel         = LTIMER_TIM_IRQx;
+  NVIC_InitStructure.NVIC_IRQChannelPriority = 1;
+  NVIC_InitStructure.NVIC_IRQChannelCmd      = ENABLE;
+  NVIC_Init ( &NVIC_InitStructure );
+
+  /* -----------------------------------------------------------------------
+   In this example TIM7 counter clock (TIM7CLK) is set to APB1 clock (PCLK1), since
+   APB1 prescaler is set to 1 and TIM7 prescaler is set to 0.
+
+  In this example TIM7 input clock (TIM7CLK) is set to APB1 clock (PCLK1),
+  since APB1 prescaler is set to 1.
+  TIM7CLK = PCLK1 = HCLK = SystemCoreClock
+
+  With Prescaler set to 479 and Period to 24999, the TIM7 counter is updated each 250 ms
+  (i.e. and interrupt is generated each 250 ms)
+     TIM7 counter clock = TIM7CLK /((Prescaler + 1)*(Period + 1))
+                        = 48 MHz / ((25000)*(480))
+                        = 4 Hz
+     ==> TIM7 counter period = 250 ms
+
+  Note:
+  SystemCoreClock variable holds HCLK frequency and is defined in system_stm32f0xx.c file.
+  Each time the core clock (HCLK) changes, user had to call SystemCoreClockUpdate()
+  function to update SystemCoreClock variable value. Otherwise, any configuration
+  based on this variable will be incorrect.
+  ----------------------------------------------------------------------- */
+  /* Time base configuration */
+  TIM_TimeBaseStructure.TIM_Period        = 1000;                               //24999;
+  TIM_TimeBaseStructure.TIM_Prescaler     = (SystemCoreClock/1000000)-1;        //479;
+  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
+  TIM_TimeBaseStructure.TIM_CounterMode   = TIM_CounterMode_Up;
+  TIM_TimeBaseInit ( LTIMER_TIMx, &TIM_TimeBaseStructure );
+
+  /* LTIMER_TIMx Interrupts enable */
+  TIM_ITConfig ( LTIMER_TIMx, TIM_IT_Update, ENABLE );
+
+  /* LTIMER_TIMx enable counter */
+  TIM_Cmd ( LTIMER_TIMx, ENABLE );
+}