🐞 fix:QAC问题：45353 Definite: Dereference of an invalid pointer value.

Firmware/Source/Device/Cmsemicon/BAT32A239/Library/Driver/src/tim.c

@@ -190,7 +190,7 @@ void TIM_Cmd(TIMSelect_TypeDef TIMx,uint8_t Chx,TIM_FunState NewState)
   * @brief  Set the specified TIMER channel's count num.
   * @param  TIMx: where x can be 0, 1, select TIEMR peripheral.
   * @param  Chx: where x can be 0, 1,2,3 select channel of  specified TIMER peripheral.
-  * 	@arg TTM_Channel_0、TTM_Channel_1、TTM_Channel_2、TTM_Channel_3
+  * 	@arg TTM_Channel_0��TTM_Channel_1��TTM_Channel_2��TTM_Channel_3
   * @param  counter: the count num of the TIEMR channel.          
   * @retval None
   */
@@ -294,11 +294,11 @@ int TIM_Init(TIM_InitTypeDef *TIM_InitStruct)
 				*TIM_reg.TDR[currentMChan[j]] = TIM_InitStruct->TIM_Period[currentMChan[j]] -1;				 
 				*TIM_reg.TO &= ~(1 << masterPos);
 				*TIM_reg.TOE &= ~(1 << masterPos);	
-				MISC->NFEN1 |=  (1<<currentMChan[j]);	 //后加			
+				MISC->NFEN1 |=  (1<<currentMChan[j]);	 //���			
 				j++;
 			}			
 		}
-		for(chanPos = 0; chanPos < 8; chanPos++)   //从属通道配置
+		for(chanPos = 0; chanPos < TIMER_CHAN_MAX_NUM; chanPos++)   //����ͨ������
 		{
 			pos = ((uint8_t)0x01) << chanPos;
 			chanNum = TIM_InitStruct->TIM_Channel & pos;