TM1638芯片驱动

songshiqun2010 · 发表于 2019-4-25 10:44:10

本帖最后由 songshiqun2010 于 2019-4-25 11:03 编辑

复制代码

1.头文件

/**

  ******************************************************************************

  * @file tm1638.h

  * @author  byron

  * @version V1.0.0

  * @date 18-March-2019

  * @brief This file contains all the functions prototypes for the

  *       tm1638.c driver.

  ******************************************************************************

  * @attention

  *

  * <h2><center>© COPYRIGHT(c) 2019 sonshiqun1225@163.com</center></h2>

  *

  * Redistribution and use in source and binary forms, with or without modification,

  * are permitted provided that the following conditions are met:

  * 1. Redistributions of source code must retain the above copyright notice,

  *    this list of conditions and the following disclaimer.

  * 2. Redistributions in binary form must reproduce the above copyright notice,

  *    this list of conditions and the following disclaimer in the documentation

  *    and/or other materials provided with the distribution.

  * 3. Neither the name of sonshiqun1225@163.com nor the names of its contributors

  *    may be used to endorse or promote products derived from this software

  *    without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  *

  ******************************************************************************

  */

#ifndef _TM1638_H_

#define _TM1638_H_

#include <stdint.h>

/** @addtogroup BSP

  * @{

  */

/** @addtogroup Component

  * @{

  */

/** @defgroup TM1638

  * @{

  */

/* Exported constants --------------------------------------------------------*/

/** @defgroup TM1638_Exported_Constants TM1638 Exported Constants

  * @{

  */

/** @defgroup TM1638_Command TM1638 Command

  * @{

  */

#define TM1638_DATA_CMD                                     ((uint8_t)0x40U)

#define TM1638_DISP_CMD                                     ((uint8_t)0x80U)

#define TM1638_ADDR_CMD                                     ((uint8_t)0xC0U)

#define TM1638_DATA_CMD_WRITE_GRAM_INC             ((uint8_t)0x40U)

#define TM1638_DATA_CMD_WRITE_GRAM_FIX             ((uint8_t)0x44U)

#define TM1638_DATA_CMD_READ_KEY                      ((uint8_t)0x42U)

#define TM1638_DISP_CMD_OFF                               ((uint8_t)0x80U)

#define TM1638_DISP_CMD_ON                                  ((uint8_t)0x88U)

#define TM1638_DISP_CMD_LV0                               ((uint8_t)0x88U)

#define TM1638_DISP_CMD_LV1                               ((uint8_t)0x89U)

#define TM1638_DISP_CMD_LV2                               ((uint8_t)0x8AU)

#define TM1638_DISP_CMD_LV3                               ((uint8_t)0x8BU)

#define TM1638_DISP_CMD_LV4                               ((uint8_t)0x8CU)

#define TM1638_DISP_CMD_LV5                               ((uint8_t)0x8DU)

#define TM1638_DISP_CMD_LV6                               ((uint8_t)0x8EU)

#define TM1638_DISP_CMD_LV7                               ((uint8_t)0x8FU)

#define TM1638_ADDR_CMD_GRAM0                         ((uint8_t)0xC0U)

#define TM1638_ADDR_CMD_GRAM1                         ((uint8_t)0xC1U)

#define TM1638_ADDR_CMD_GRAM2                         ((uint8_t)0xC2U)

#define TM1638_ADDR_CMD_GRAM3                         ((uint8_t)0xC3U)

#define TM1638_ADDR_CMD_GRAM4                         ((uint8_t)0xC4U)

#define TM1638_ADDR_CMD_GRAM5                         ((uint8_t)0xC5U)

#define TM1638_ADDR_CMD_GRAM6                         ((uint8_t)0xC6U)

#define TM1638_ADDR_CMD_GRAM7                         ((uint8_t)0xC7U)

#define TM1638_ADDR_CMD_GRAM8                         ((uint8_t)0xC8U)

#define TM1638_ADDR_CMD_GRAM9                         ((uint8_t)0xC9U)

#define TM1638_ADDR_CMD_GRAM10                      ((uint8_t)0xCAU)

#define TM1638_ADDR_CMD_GRAM11                      ((uint8_t)0xCBU)

#define TM1638_ADDR_CMD_GRAM12                      ((uint8_t)0xCCU)

#define TM1638_ADDR_CMD_GRAM13                      ((uint8_t)0xCDU)

#define TM1638_ADDR_CMD_GRAM14                      ((uint8_t)0xCEU)

#define TM1638_ADDR_CMD_GRAM15                      ((uint8_t)0xCFU)

/**

  * @}

  */

/** @defgroup TM1638_Status TM1638 Status

  * @{

  */

#define  TM1638_STATUS_READ_ERROR          ((int32_t)-5)

#define  TM1638_STATUS_WRITE_ERROR          ((int32_t)-4)

#define  TM1638_STATUS_ADDRESS_ERROR       ((int32_t)-3)

#define  TM1638_STATUS_RESET_TIMEOUT       ((int32_t)-2)

#define  TM1638_STATUS_ERROR                ((int32_t)-1)

#define  TM1638_STATUS_OK                   ((int32_t) 0)

#define  TM1638_STATUS_LINK_DOWN          ((int32_t) 1)

#define  TM1638_STATUS_AUTONEGO_NOTDONE    ((int32_t) 2)

/**

  * @}

  */

/**

  * @}

  */

/* Exported types ------------------------------------------------------------*/

/** @defgroup TM1638_Exported_Types TM1638 Exported Types

  * @{

  */

typedef enum{

      tube_0 = 0x3F,

      tube_1 = 0x06,

      tube_2 = 0x5B,

      tube_3 = 0x4F,

      tube_4 = 0x66,

      tube_5 = 0x6D,

      tube_6 = 0x7D,

      tube_7 = 0x07,

      tube_8 = 0x7F,

      tube_9 = 0x6F,

      tube_A = 0x77,

      tube_b = 0x7C,

      tube_C = 0x39,

      tube_d = 0x5E,

      tube_E = 0x79,

      tube_F = 0x71,

      tube_P = 0x73,

      tube_J = 0x0E,

      tube_r = 0x50,

      tube_s = 0x6D,

      tube_t = 0x78,

      tube_dot = 0x80,

      tube__ = 0x40,

      tube_no = 0x00,

}tm1638_tube_enum_t;

typedef int32_t  (*tm1638_Init_Func) (void);

typedef int32_t  (*tm1638_DeInit_Func) (void);

typedef int32_t  (*tm1638_ReadReg_Func) (uint8_t*);

typedef int32_t  (*tm1638_WriteReg_Func)  (uint8_t);

typedef int32_t  (*tm1638_WriteSTB_Func)  (uint8_t);

typedef int32_t  (*tm1638_DelayUS_Func)  (uint16_t);

typedef struct

{

  tm1638_Init_Func    Init;

  tm1638_DeInit_Func DeInit;

  tm1638_WriteReg_Func  WriteReg;

  tm1638_ReadReg_Func ReadReg;

  tm1638_WriteSTB_Func  WriteSTB;

  tm1638_DelayUS_Func DelayUS;

}tm1638_IOCtx_t;

typedef struct

{

  uint32_t          DevAddr;

  uint32_t          Is_Initialized;

  tm1638_IOCtx_t    IO;

  void             *pData;

}tm1638_Object_t;

/**

  * @}

  */

/* Exported macro ------------------------------------------------------------*/

/* Exported functions --------------------------------------------------------*/

/** @defgroup TM1638_Exported_Functions TM1638 Exported Functions

  * @{

  */

int32_t TM1638_RegisterBusIO(tm1638_Object_t *pObj, tm1638_IOCtx_t *ioctx);

int32_t TM1638_Init(tm1638_Object_t *pObj,uint8_t mode);

int32_t TM1638_DeInit(tm1638_Object_t *pObj);

int32_t TM1638_ReadKey(tm1638_Object_t *pObj,uint8_t *pkey);

int32_t TM1638_WriteGRAM_Fix(tm1638_Object_t *pObj,uint8_t add,uint8_t data);

int32_t TM1638_WriteGRAM_Inc(tm1638_Object_t *pObj,uint8_t add,uint8_t *pdata,uint8_t len);

/**

  * @}

  */

#endif /* _TM1638_H_ */

/**

  * @}

  */

/**

  * @}

  */

/**

  * @}

  */

/************************ (C) COPYRIGHT sonshiqun1225@163.com *****END OF FILE****/

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2.源文件

/**

  ******************************************************************************

  * @file tm1638.c

  * @author  byron

  * @version V1.0.0

  * @date 18-March-2019

  * @brief This file provides a set of functions needed to manage the TM1638

  *       devices.

  ******************************************************************************

  * @attention

  *

  * <h2><center>© COPYRIGHT(c) 2017 sonshiqun1225@163.com</center></h2>

  *

  * Redistribution and use in source and binary forms, with or without modification,

  * are permitted provided that the following conditions are met:

  * 1. Redistributions of source code must retain the above copyright notice,

  *    this list of conditions and the following disclaimer.

  * 2. Redistributions in binary form must reproduce the above copyright notice,

  *    this list of conditions and the following disclaimer in the documentation

  *    and/or other materials provided with the distribution.

  * 3. Neither the name of sonshiqun1225@163.com nor the names of its contributors

  *    may be used to endorse or promote products derived from this software

  *    without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE

  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,

  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  *

  ******************************************************************************

  */

/* Includes ------------------------------------------------------------------*/

#include "tm1638.h"

/** @addtogroup BSP

  * @{

  */

/** @addtogroup Component

  * @{

  */

/** @defgroup TM1638 TM1638

  * @{

  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/** @defgroup TM1638_Private_Defines TM1638 Private Defines

  * @{

  */

#define TM1638_INIT_TIMEOUT  ((uint16_t)5000)

#define TM1638_READ_KEY_DELAY_NUS ((uint16_t)10)

/**

  * @}

  */

/* Private macro -------------------------------------------------------------*/

/* Private variables ---------------------------------------------------------*/

/* Private function prototypes -----------------------------------------------*/

/* Private functions ---------------------------------------------------------*/

/** @defgroup TM1638_Private_Functions TM1638 Private Functions

  * @{

  */

/**

  * @brief  send command to tm1638

  * @param  pObj: device object  of tm1638_Object_t.

  * @param  cmd: @TM1638_Command.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

static int32_t TM1638_WriteCommand(tm1638_Object_t *pObj,uint8_t cmd)

{

      pObj->IO.WriteSTB(0);

      pObj->IO.WriteReg(cmd);

      pObj->IO.WriteSTB(1);

      return TM1638_STATUS_OK;

}

/**

  * @brief  Clear tm1638 display

  * @param  pObj: device object  of tm1638_Object_t.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

static void TM1638_ClearGRAM(tm1638_Object_t *pObj)

{

      uint8_t i;

      TM1638_WriteCommand(pObj,TM1638_DATA_CMD_WRITE_GRAM_INC);

      pObj->IO.WriteSTB(0);

      pObj->IO.WriteReg(TM1638_ADDR_CMD_GRAM0);

      for(i=0;i<16;i++)

      {

            pObj->IO.WriteReg(0x00);

      }

      pObj->IO.WriteSTB(1);

}

/**

  * @brief  Register IO functions to component object

  * @param  pObj: device object  of tm1638_Object_t.

  * @param  ioctx: holds device IO functions.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

int32_t  TM1638_RegisterBusIO(tm1638_Object_t *pObj, tm1638_IOCtx_t *ioctx)

{

  if(!pObj || !ioctx->ReadReg || !ioctx->WriteReg || !ioctx->DelayUS || !ioctx->WriteSTB)

  {

return TM1638_STATUS_ERROR;

  }

  pObj->IO.Init = ioctx->Init;

  pObj->IO.DeInit = ioctx->DeInit;

  pObj->IO.ReadReg = ioctx->ReadReg;

  pObj->IO.WriteReg = ioctx->WriteReg;

  pObj->IO.WriteSTB = ioctx->WriteSTB;

  pObj->IO.DelayUS = ioctx->DelayUS;

  return TM1638_STATUS_OK;

}

/**

  * @brief  Initialize the TM1638 and configure the needed hardware resources

  * @param  pObj: device object tm1638_Object_t.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ADDRESS_ERROR if cannot find device address

  *       TM1638_STATUS_READ_ERROR if connot read register

  *       TM1638_STATUS_WRITE_ERROR if connot write to register

  *       TM1638_STATUS_RESET_TIMEOUT if cannot perform a software reset

  */

int32_t TM1638_Init(tm1638_Object_t *pObj,uint8_t mode)

{

      int32_t status = TM1638_STATUS_OK;

      if(pObj->Is_Initialized == 0)

      {

            if(pObj->IO.Init != 0)

            {

                     /* GPIO and Clocks initialization */

                     pObj->IO.Init();

            }

            TM1638_WriteCommand(pObj,mode);

            TM1638_ClearGRAM(pObj);

            if(status == TM1638_STATUS_OK)

            {

                     pObj->IO.DelayUS(TM1638_INIT_TIMEOUT);

                     pObj->Is_Initialized = 1;

            }

      }

      return status;

}

/**

  * @brief  De-Initialize the TM1638 and it's hardware resources

  * @param  pObj: device object tm1638_Object_t.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

int32_t TM1638_DeInit(tm1638_Object_t *pObj)

{

      if(pObj->Is_Initialized)

      {

            if(pObj->IO.DeInit != 0)

            {

                     if(pObj->IO.DeInit() < 0)

                     {

                              return TM1638_STATUS_ERROR;

                     }

            }

            pObj->Is_Initialized = 0;

      }

      return TM1638_STATUS_OK;

}

/**

  * @brief  Read key value of tm1638

  * @param  pObj: device object  of tm1638_Object_t.

  * @param  pkey: pointer to key value.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

int32_t TM1638_ReadKey(tm1638_Object_t *pObj,uint8_t *pkey)

{

      uint8_t tmp,i,ret=0;

      pObj->IO.WriteSTB(0);

      pObj->IO.WriteReg(TM1638_DATA_CMD_READ_KEY);

      pObj->IO.DelayUS(TM1638_READ_KEY_DELAY_NUS);

      for(i=0;i<4;i++){

            pObj->IO.ReadReg(&tmp);

            ret|=tmp<<i;

      }

      pObj->IO.WriteSTB(1);

      *pkey = ret;

      return TM1638_STATUS_OK;

}

/**

  * @brief  Write display RAM in address fixed mode

  * @param  pObj: device object  of tm1638_Object_t.

  * @param  add: GRAM address.

  * @param  data: display data.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

int32_t TM1638_WriteGRAM_Fix(tm1638_Object_t *pObj,uint8_t add,uint8_t data)

{

      TM1638_WriteCommand(pObj,TM1638_DATA_CMD_WRITE_GRAM_FIX);

      pObj->IO.WriteSTB(0);

      pObj->IO.WriteReg(TM1638_ADDR_CMD|add);

      pObj->IO.WriteReg(data);

      pObj->IO.WriteSTB(1);

      return TM1638_STATUS_OK;

}

/**

  * @brief  Write display RAM in address increment  mode

  * @param  pObj: device object  of tm1638_Object_t.

  * @param  add: index of display address.

  * @param  pdata: pointer display data array.

  * @param  len: size of data array in byte.

  * @retval TM1638_STATUS_OK  if OK

  *       TM1638_STATUS_ERROR if missing mandatory function

  */

int32_t TM1638_WriteGRAM_Inc(tm1638_Object_t *pObj,uint8_t add,uint8_t *pdata,uint8_t len)

{

      uint8_t i;

      TM1638_WriteCommand(pObj,TM1638_DATA_CMD_WRITE_GRAM_INC);

//       pObj->IO.DelayUS(TM1638_READ_KEY_DELAY_NUS);

      pObj->IO.WriteSTB(0);

      pObj->IO.WriteReg(TM1638_ADDR_CMD|add);

      for(i=0;i<len;i++){

            pObj->IO.WriteReg(*pdata++);

      }

      pObj->IO.WriteSTB(1);

      return TM1638_STATUS_OK;

}

/**

  * @}

  */

/**

  * @}

  */

/**

  * @}

  */

/**

  * @}

  */

/************************ (C) COPYRIGHT sonshiqun1225@163.com *****END OF FILE****/

复制代码
3.示例

#include "stm32h7xx_hal.h"

#include "cmsis_os.h"

#include "tm1638io_drv.h"

#define TM_IO_DELAY_NUS 5

#define TM_DIO_SET_IN() do{GPIOD->MODER &= ~(3<<(2*2));}while(0);

#define TM_DIO_SET_OUT() do{GPIOD->MODER &= ~(3<<(2*2));GPIOD->MODER |= 1<<(2*2);}while(0);

#define TM_STB_1  (GPIOG->BSRRL = GPIO_PIN_3)

#define TM_STB_0  (GPIOG->BSRRH = GPIO_PIN_3)

#define TM_CLK_1  (GPIOG->BSRRL = GPIO_PIN_2)

#define TM_CLK_0  (GPIOG->BSRRH = GPIO_PIN_2)

#define TM_DIO_1  (GPIOD->BSRRL = GPIO_PIN_2)

#define TM_DIO_0  (GPIOD->BSRRH = GPIO_PIN_2)

#define TM_DIO_IN ((GPIOD->IDR & GPIO_PIN_2)?1:0)

//#define TM_STB_1  HAL_GPIO_WritePin(GPIOG,GPIO_PIN_3,GPIO_PIN_SET)

//#define TM_STB_0  HAL_GPIO_WritePin(GPIOG,GPIO_PIN_3,GPIO_PIN_RESET)

//#define TM_CLK_1  HAL_GPIO_WritePin(GPIOG,GPIO_PIN_2,GPIO_PIN_SET)

//#define TM_CLK_0  HAL_GPIO_WritePin(GPIOG,GPIO_PIN_2,GPIO_PIN_RESET)

//#define TM_DIO_1  HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_SET)

//#define TM_DIO_0  HAL_GPIO_WritePin(GPIOD,GPIO_PIN_2,GPIO_PIN_RESET)

//#define TM_DIO_IN (HAL_GPIO_ReadPin(GPIOD,GPIO_PIN_2)?1:0)

int32_t  TM1638_IO_Init(void)

{

      TM_STB_1;

      TM_CLK_0;

      TM_DIO_SET_OUT();

      TM_DIO_0;

      return 0;

}

int32_t  TM1638_IO_DeInit(void)

{

      return 0;

}

int32_t  TM1638_IO_DelayUS(uint16_t d)

{

//       uint32_t i;

//       while(d--){

//             for(i=0;i<120;i++)

//             {

//                      ;

//             }

//             HAL_Delay(1);

//             osDelay(1);

//       }

      osal_usleep(d);

      return 0;

}

int32_t  TM1638_IO_ReadReg(uint8_t* p)

{

      unsigned char i;

      unsigned char temp=0;

      TM_DIO_SET_IN();

      for(i=0;i<8;i++)

      {

            temp>>=1;

            TM_CLK_0;

            TM1638_IO_DelayUS(TM_IO_DELAY_NUS);

            TM_CLK_1;

            if(TM_DIO_IN)

                     temp|=0x80;

      }

      TM_DIO_SET_OUT();

      *p = temp;

      return 0;

}

int32_t  TM1638_IO_WriteReg(uint8_t d)

{

      unsigned char i;

      for(i=0;i<8;i++)

      {

            TM_CLK_0;

            if(d&0x01)

                     TM_DIO_1;

            else

                     TM_DIO_0;

            d>>=1;

            TM_CLK_1;

            TM1638_IO_DelayUS(TM_IO_DELAY_NUS);

      }

      return 0;

}

int32_t  TM1638_IO_WriteSTB(uint8_t s)

{

      s ? TM_STB_1 : TM_STB_0;

      return 0;

}

tm1638_Object_t TM1638;

tm1638_IOCtx_t  TM1638_IOCtx = {

            .Init = TM1638_IO_Init,

            .DeInit = TM1638_IO_DeInit,

            .WriteReg = TM1638_IO_WriteReg,

            .ReadReg = TM1638_IO_ReadReg,

            .WriteSTB = TM1638_IO_WriteSTB,

            .DelayUS = TM1638_IO_DelayUS

};

int32_t OP_Init(void)

{

      osMutexDef(myMutexOp);

      myMutexOpHandle = osMutexCreate(osMutex(myMutexOp));

      /* Set TM1638 IO functions */

      if(TM1638_RegisterBusIO(&TM1638, &TM1638_IOCtx)){

            return -1;

      }

/* Initialize the TM1638 */

if(TM1638_Init(&TM1638,TM1638_DISP_CMD_LV2)){

         return -2;

}

op.Is_Initialized = ManufacturerSpecificProfileArea[0].bSubCount;

      return 0;

}
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STMCU · 发表于 2019-4-26 17:13:36

谢谢分享

‭星光 · 发表于 2019-6-20 20:31:58

请问TM1638全灭的时候有的灯微亮，用AIP1638全灭的时候没问题，但是会不定时的全黑一下，有可能是什么问题

songshiqun2010 · 发表于 2019-6-21 08:02:39

‭星光发表于 2019-6-20 20:31
请问TM1638全灭的时候有的灯微亮，用AIP1638全灭的时候没问题，但是会不定时的全黑一下，有可能是什么问题 ...

可能是硬件设计的问题，看看芯片的电气参数。

[原创] TM1638芯片驱动

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