diff --git a/libraries/oleddrv/Encoder.c b/libraries/oleddrv/Encoder.c
deleted file mode 100644
--- a/libraries/oleddrv/Encoder.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*******************************************************************************
-* File Name          : Encoder.c
-* Author             : lxyppc
-* Version            : V1.0
-* Date               : 10-01-29
-* Description        : Main program body
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "stm32f10x_lib.h"
-#include "Encoder.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-#ifdef    DEBUG_BOARD
-#define   ENCODER_TIM             TIM3
-#else
-#define   ENCODER_TIM             TIM4
-#endif
-/*
-    0000: No filter, sampling is done at
-    0001: fSAMPLING=fCK_INT, N=2.
-    0010: fSAMPLING=fCK_INT, N=4.
-    0011: fSAMPLING=fCK_INT, N=8.
-    0100: fSAMPLING=fDTS/2, N=6.
-    0101: fSAMPLING=fDTS/2, N=8.
-    0110: fSAMPLING=fDTS/4, N=6.
-    0111: fSAMPLING=fDTS/4, N=8.
-    1000: fSAMPLING=fDTS/8, N=6.
-    1001: fSAMPLING=fDTS/8, N=8.
-    1010: fSAMPLING=fDTS/16, N=5.
-    1011: fSAMPLING=fDTS/16, N=6.
-    1100: fSAMPLING=fDTS/16, N=8.
-    1101: fSAMPLING=fDTS/32, N=5.
-    1110: fSAMPLING=fDTS/32, N=6.
-    1111: fSAMPLING=fDTS/32, N=8.
-*/
-// Tim clock division is 1, so the FDTS = 72MHz
-// Fsample = FDTS/4 = 18MHz, and sample 6 times
-#define   ENC_FILTER              6
-#define   MAX_COUNT               1200
-#define   ENCODER_TIM_PERIOD      (MAX_COUNT*3)
-
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-static    u8    keyStatus = 0;
-
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/*******************************************************************************
-* Function Name  : Enc_Init
-* Description    : Initialize the encoder
-* Input          : None
-* Output         : None
-* Return         : None
-*******************************************************************************/
-void  Enc_Init(void)
-{
-  TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
-  TIM_ICInitTypeDef  TIM_ICInitStructure;
-  GPIO_InitTypeDef GPIO_InitStructure;
-  
-  /* Enable SPI1 and GPIO clocks */
-  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
-  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB,ENABLE);
-#ifdef    DEBUG_BOARD
-  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);
-  // PA.6,PA.7 for encoder, PA.0 for the encoder button
-  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_6 | GPIO_Pin_7;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_Init(GPIOA,&GPIO_InitStructure);
-#else
-  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4,ENABLE);
-  // PB.6,PB.7 for encoder, PA.0 for the encoder button
-  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_Init(GPIOA,&GPIO_InitStructure);
-  
-  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
-  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
-  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
-  GPIO_Init(GPIOB,&GPIO_InitStructure);
-#endif
-  
-      /* Timer configuration in Encoder mode */
-  TIM_DeInit(ENCODER_TIM);
-  
-  TIM_TimeBaseStructure.TIM_Prescaler = 0;  // No prescaling 
-  TIM_TimeBaseStructure.TIM_Period = ENCODER_TIM_PERIOD-1;  
-  TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
-  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
-  
-  TIM_TimeBaseInit(ENCODER_TIM, &TIM_TimeBaseStructure);
-  
-  TIM_EncoderInterfaceConfig(ENCODER_TIM, TIM_EncoderMode_TI12, 
-                             TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);
-  TIM_ICStructInit(&TIM_ICInitStructure);
-  
-  TIM_ICInitStructure.TIM_ICFilter = ENC_FILTER;//ICx_FILTER;
-  TIM_ICInit(ENCODER_TIM, &TIM_ICInitStructure);
-  
-  // Initial interuppt structures
-//  NVIC_InitStructure.NVIC_IRQChannel = TIM3_UP_IRQChannel;
-//  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
-//  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
-//  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-//  NVIC_Init(&NVIC_InitStructure);
-//  NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQChannel;
-//  NVIC_Init(&NVIC_InitStructure);
-//  
-//  // Clear all pending interrupts
-//  TIM_ClearFlag(ENCODER_TIM, TIM_FLAG_Update);
-//  TIM_ITConfig(ENCODER_TIM, TIM_IT_Update, ENABLE);
- 
-  ENCODER_TIM->CNT = 0;
-  TIM_Cmd(ENCODER_TIM, ENABLE);
-}
-
-/*******************************************************************************
-* Function Name  : Enc_GetCount
-* Description    : Get current encoder count
-* Input          : None
-* Output         : None
-* Return         : None
-*******************************************************************************/
-s16   Enc_GetCount(void)
-{
-  static  u16   lastCount = 0;
-  u16  curCount = ENCODER_TIM->CNT;
-  s32 dAngle = curCount - lastCount;
-  if(dAngle >= MAX_COUNT){
-    dAngle -= ENCODER_TIM_PERIOD;
-  }else if(dAngle < -MAX_COUNT){
-    dAngle += ENCODER_TIM_PERIOD;
-  }
-  lastCount = curCount;
-  if(0){
-    static u8 lastDown = 0;
-    if(GPIOA->IDR & GPIO_Pin_0){
-      if(lastDown>=2){
-        lastDown = 0;
-        keyStatus = 1;
-      }else{
-        lastDown = 0;
-      }
-    }else{
-      if(lastDown&0x40){
-      }else{
-        lastDown++;
-      }
-    }
-  }
-  return (s16)dAngle;
-}
-
-/*******************************************************************************
-* Function Name  : Enc_IsKeyDown
-* Description    : Is the encoder button down
-* Input          : None
-* Output         : None
-* Return         : None
-*******************************************************************************/
-u8    Enc_IsKeyDown(void)
-{
-  if(keyStatus){
-    keyStatus = 0;
-    return 1;
-  }
-  return 0;
-}