7Segment-Library

"High Performance" & "Easy To Use" library for 7-Segment display in AVR - ARM Cortex M

Version : 0.0.0

• Type : Embedded Software.

• Support : AVR/ARM STM32 series.

• Program Language : C++

• Properties :

Initialization and de-initialization functions:

• Init()
• PinConfig()

Operation functions:

• Sync()
• SyncLoop()
• DisplayOff()
• DisplayOn()
• Shift()
• Clear()
• Show()
• ShowASync()

Macros:

• _ENABLE_CUSTOM_PIN

How to use this driver

The Menu Manager library can be used as follows:

1. Add .h and source file in project.

2. Add 'using namespace Display;' in your project, for example:

using namespace Display;
    

3. Create configurations, for example:

• Config type:

  using namespace Display;
  
  SSegmentCfg_TypeDef

• Parameters:

  • ControlGPIO = Connected GPIO for enable PINs
  • ControlPinA = Segment 1 enable pin
  • DataGPIO = Connected GPIO for data PINs (A ~ F with dot point)
  • DataPinA = Data PIN A
  • Type = Type of Segments (CommonCathode / CommonAnode)

• Example:

  using namespace Display;
  
  SSegmentCfg_TypeDef disp_cfg;
  
  disp_cfg.ControlGPIO = GPIOA;
  disp_cfg.ControlPinA = 1;
  disp_cfg.DataGPIO    = GPIOA;
  disp_cfg.DataPinA    = 5;
  disp_cfg.Type        = CommonAnode;

4. Create SSegment object and initialize it, for example:

• For global access:

  • Object Initializer:

    SSegment(uint8_t _nmb_of_segments, uint8_t _refresh_rate, uint8_t _buffer_length);

  • Parameters:

    • _nmb_of_segments : Number of connected segments (uint8 value - Max 255)
    • _refresh_rate : Display refresh rate (uint8 value - Max 255)
    • _buffer_length : Buffer length of data (uint8 value - Max 255)

  • Example:

    SSegment MainDisplay(4, 50, 8);
    
    MainDisplay.Init(disp_cfg);
    
    // disp_cfg Is from the previous step

• For local access:

  • Object Initializer:

    SSegment(SSegmentCfg_TypeDef _cfg, uint8_t _nmb_of_segments, uint8_t _refresh_rate, uint8_t _buffer_length);

  • Parameters:

    • _cfg : Configuration of segments (SSegmentCfg_TypeDef type)
    • _nmb_of_segments : Number of connected segments (uint8 value - Max 255)
    • _refresh_rate : Display refresh rate (uint8 value - Max 255)
    • _buffer_length : Buffer length of data (uint8 value - Max 255)

  • Example:

    SSegment MainDisplay(disp_cfg, 4, 50, 8);
    
    MainDisplay.Init(disp_cfg);
    
    // disp_cfg Is from the previous step

5. Using Sync methods for refresh display, for example:

• For ISR(Interrupt) mode refresh:

  void Timer_Interrupt(void)
  {
     MainDisplay.Sync();
  }
  

• For Loop mode refresh:

  int main()
  {
     //Your codes
     
     while(1)
     {
        MainDisplay.SyncLoop();
     }
  }
  

6. Using operation methods, for example:

int main()
{
   //Your codes
   
   MainDisplay.Clear();
   MainDisplay.Show("Hello");
   
   while(1)
   {
      MainDisplay.SyncLoop();
   }
}

Tests performed:

• Run on AVR
• Run on STM32 Fx cores

Developer: Majid Derhambakhsh