stm32+MAX7219数码管模块显示程序 spi接口

基于STM32F4xx的MAX7219数码管模块显示程序，采用spi串行总线通信，库函数编程，实测能正常驱动数码管显示

/**
  ******************************************************************************
  * @file    misc.c
  * @author  MCD Application Team
  * @version V1.8.0
  * @date    04-November-2016
  * @brief   This file provides all the miscellaneous firmware functions （add-on
  *          to CMSIS functions）.
  *          
  *  @verbatim   
  *                               
  *          ===================================================================      
  *                        How to configure Interrupts using driver 
  *          ===================================================================      
  * 
  *            This section provide functions allowing to configure the NVIC interrupts （IRQ）.
  *            The Cortex-M4 exceptions are managed by CMSIS functions.
  *
  *            1. Configure the NVIC Priority Grouping using NVIC_PriorityGroupConfig（）
  *                function according to the following table.
 
  *  The table below gives the allowed values of the pre-emption priority and subpriority according
  *  to the Priority Grouping configuration performed by NVIC_PriorityGroupConfig function
  *    ==========================================================================================================================
  *      NVIC_PriorityGroup   | NVIC_IRQChannelPreemptionPriority | NVIC_IRQChannelSubPriority  |       Description
  *    ==========================================================================================================================
  *     NVIC_PriorityGroup_0  |                0                  |            0-15             | 0 bits for pre-emption priority
  *                           |                                   |                             | 4 bits for subpriority
  *    --------------------------------------------------------------------------------------------------------------------------
  *     NVIC_PriorityGroup_1  |                0-1                |            0-7              | 1 bits for pre-emption priority
  *                           |                                   |                             | 3 bits for subpriority
  *    --------------------------------------------------------------------------------------------------------------------------    
  *     NVIC_PriorityGroup_2  |                0-3                |            0-3              | 2 bits for pre-emption priority
  *                           |                                   |                             | 2 bits for subpriority
  *    --------------------------------------------------------------------------------------------------------------------------    
  *     NVIC_PriorityGroup_3  |                0-7                |            0-1              | 3 bits for pre-emption priority
  *                           |                                   |                             | 1 bits for subpriority
  *    ---------------------------------------------

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-05-12 16:06  MAX7219数码管LED模块\
     目录           0  2018-05-10 15:47  MAX7219数码管LED模块\CORE\
     文件      109142  2014-07-17 21:52  MAX7219数码管LED模块\CORE\core_cm4.h
     文件       22735  2014-07-17 21:52  MAX7219数码管LED模块\CORE\core_cm4_simd.h
     文件       17146  2014-07-17 21:52  MAX7219数码管LED模块\CORE\core_cmFunc.h
     文件       20513  2014-07-17 21:52  MAX7219数码管LED模块\CORE\core_cmInstr.h
     文件       29607  2016-11-07 23:02  MAX7219数码管LED模块\CORE\startup_stm32f40_41xxx.s
     目录           0  2018-05-10 15:47  MAX7219数码管LED模块\FWLIB\
     目录           0  2018-05-10 15:47  MAX7219数码管LED模块\FWLIB\inc\
     文件        6926  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\misc.h
     文件       33008  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_adc.h
     文件       27849  2016-11-08 23:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_can.h
     文件       12446  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_cec.h
     文件        2418  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_crc.h
     文件       14483  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_cryp.h
     文件       14948  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dac.h
     文件        4298  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dbgmcu.h
     文件       12979  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dcmi.h
     文件       46290  2016-11-09 01:41  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dfsdm.h
     文件       28884  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dma.h
     文件       19703  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dma2d.h
     文件       41450  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_dsi.h
     文件        8117  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_exti.h
     文件       25092  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_flash.h
     文件        3277  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_flash_ramfunc.h
     文件       44926  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_fmc.h
     文件       19235  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_fmpi2c.h
     文件       27183  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_fsmc.h
     文件       29269  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_gpio.h
     文件       10086  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_hash.h
     文件       31937  2016-11-05 01:33  MAX7219数码管LED模块\FWLIB\inc\stm32f4xx_i2c.h
............此处省略110个文件信息