Inc/DS_MAX7219.h

@@ -25,14 +25,21 @@ typedef struct DS_MAX7219
 
 void DS_MAX7219_Init(DS_MAX7219* Display, SPI_HandleTypeDef* SPI, GPIO_TypeDef* Port_CS, uint16_t Pin_CS);
 
+/// @brief Enabled dots from display. Each bit - dot
+/// @param Display 
+/// @param Dots 0 - 0xFF
 void DS_MAX7219_EnableDots(DS_MAX7219* Display, uint8_t Dots);
 
 void DS_MAX7219_Print(DS_MAX7219* Display, int64_t Number);
 
+void DS_MAX7219_PrintFloat(DS_MAX7219* Display, float Number);
+
 void DS_MAX7219_UpdataDisplay(DS_MAX7219* Display);
 
 void DS_MAX7219_ConfigureDisplay(DS_MAX7219* Display, uint8_t DecodeMode, uint8_t Intensivity, uint8_t ScanLimit);
 
 void __DS_MAX7219_SendConfigData(DS_MAX7219* Display);
 
+uint8_t __DS_Max7219_MakeNumberGreaterOne(float, uint8_t);
+
 #endif //DSMAX7219_H

Src/DS_MAX7219.c

@@ -1,5 +1,6 @@
 #include "../inc/DS_MAX7219.h"
 #include <stdio.h>
+#include "DS_MAX7219.h"
 
 void DS_MAX7219_Init(DS_MAX7219* Display, SPI_HandleTypeDef* SPI, GPIO_TypeDef* Port_CS, uint16_t Pin_CS)
 {
@@ -9,6 +10,7 @@ void DS_MAX7219_Init(DS_MAX7219* Display, SPI_HandleTypeDef* SPI, GPIO_TypeDef*
     Display->Intensivity = 8;
     Display->ScanLimit = 7;
     Display->EnableDecodeMode = true;
+    Display->Dots = 0;
 
     Display->Port_CS = Port_CS;
     Display->Pin_CS = Pin_CS;
@@ -22,6 +24,11 @@ void DS_MAX7219_Init(DS_MAX7219* Display, SPI_HandleTypeDef* SPI, GPIO_TypeDef*
     DS_MAX7219_UpdataDisplay(Display);
 }
 
+void DS_MAX7219_EnableDots(DS_MAX7219* Display, uint8_t Dots)
+{
+    Display->Dots = Dots;
+}
+
 void DS_MAX7219_Print(DS_MAX7219* Display, int64_t Number)
 {
     if (Number<0)
@@ -103,6 +110,166 @@ void DS_MAX7219_Print(DS_MAX7219* Display, int64_t Number)
     Display->DisplayData[7] = Number;
 }
 
+void DS_MAX7219_PrintFloat(DS_MAX7219* Display, float Number)
+{
+    uint64_t tempNumber = 0;
+
+    if (Number<0)
+    {
+        Display->DisplayData[0] = '-';
+        Number = Number * -1;
+    }
+    else
+        Display->DisplayData[0] = ' ';
+
+    if (Number > 9999999)
+    {
+        tempNumber = 100000000;
+    }
+    
+    if (Number == 0)
+    {
+        tempNumber = 0;
+        DS_MAX7219_EnableDots(Display, 0);
+    }
+    else if (Number < 1)
+    {
+        uint8_t Zeroes = __DS_Max7219_MakeNumberGreaterOne(Number, 0);
+     
+        if (Zeroes > 8)
+        {
+            tempNumber = 100000000;
+        }
+
+        for (uint8_t i = 0; i < Zeroes; i++)
+        {
+            Display->DisplayData[i+1] = 0;
+        }
+        
+        
+        tempNumber = Number * 1000000;
+
+        DS_MAX7219_EnableDots(Display, 0x40);
+    }
+    else
+    {
+
+        if (Number < 10)
+        {
+            tempNumber = Number * 100000;
+            DS_MAX7219_EnableDots(Display, 0x20);
+        }
+        
+        if (Number < 100)
+        {
+            tempNumber = Number * 10000;
+            DS_MAX7219_EnableDots(Display, 0x10);
+        }
+
+        if (Number < 1000)
+        {
+            tempNumber = Number * 1000;
+            DS_MAX7219_EnableDots(Display, 0x8);
+        }
+
+        if (Number < 10000)
+        {
+            tempNumber = Number * 100;
+            DS_MAX7219_EnableDots(Display, 0x4);
+        }
+
+        if (Number < 100000)
+        {
+            tempNumber = Number * 10;
+            DS_MAX7219_EnableDots(Display, 0x2);
+        }
+
+        if (Number < 1000000)
+        {
+            tempNumber = Number * 1;
+            DS_MAX7219_EnableDots(Display, 0x1);
+        }
+    }
+
+
+    
+    
+    
+
+
+
+
+
+    uint8_t t = tempNumber/1000000;
+
+    if (t==0 && Display->DisplayData[1] != 0)
+        Display->DisplayData[1] = ' ';
+    else if (t<10)
+    {
+        Display->DisplayData[1] = t;
+        tempNumber = tempNumber - t*1000000;
+    }
+    else
+    {
+        Display->DisplayData[0] = 
+        Display->DisplayData[1] = 
+        Display->DisplayData[2] = 
+        Display->DisplayData[3] = 
+        Display->DisplayData[4] = 
+        Display->DisplayData[5] = 
+        Display->DisplayData[6] = 
+        Display->DisplayData[7] = '9';
+        return;
+    }
+
+    t = tempNumber/100000;
+    if ((t==0)&&(Display->DisplayData[1] == ' '))
+        Display->DisplayData[2] = ' ';
+    else
+    {
+        Display->DisplayData[2] = t;
+        tempNumber = tempNumber - t*100000;
+    }
+
+    t = tempNumber/10000;
+    if ((t==0)&&(Display->DisplayData[2] == ' '))
+        Display->DisplayData[3] = ' ';
+    else
+    {
+        Display->DisplayData[3] = t;
+        tempNumber = tempNumber - t*10000;
+    }
+
+    t = tempNumber/1000;
+    if ((t==0)&&(Display->DisplayData[3] == ' '))
+        Display->DisplayData[4] = ' ';
+    else
+    {
+        Display->DisplayData[4] = t;
+        tempNumber = tempNumber - t*1000;
+    }
+
+    t = tempNumber/100;
+    if ((t==0)&&(Display->DisplayData[4] == ' '))
+        Display->DisplayData[5] = ' ';
+    else
+    {
+        Display->DisplayData[5] = t;
+        tempNumber = tempNumber - t*100;
+    }
+
+    t = tempNumber/10;
+    if ((t==0)&&(Display->DisplayData[5] == ' '))
+        Display->DisplayData[6] = ' ';
+    else
+    {
+        Display->DisplayData[6] = t;
+        tempNumber = tempNumber - t*10;
+    }
+
+    Display->DisplayData[7] = tempNumber;
+}
+
 uint8_t __DS_MAX7219_ConvertSymbol(char Symbol)
 {
     switch (Symbol)
@@ -166,11 +333,12 @@ void DS_MAX7219_UpdataDisplay(DS_MAX7219 *Display)
 {
     for (uint8_t i = 0; i < 8; i++)
     {
-        uint16_t Data = ((i+1)<<8) + __DS_MAX7219_ConvertSymbol(Display->DisplayData[7-i]);
+        uint16_t Data = ((i+1)<<8) + __DS_MAX7219_ConvertSymbol(Display->DisplayData[7-i]) + ((Display->Dots >> i & (1)) << 7);
         HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_RESET);
         HAL_SPI_Transmit(Display->SPI, (uint8_t*) &Data, 1, 100);
         HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_SET);
     }
+
 }
 
 void DS_MAX7219_ConfigureDisplay(DS_MAX7219 *Display, uint8_t DecodeMode, uint8_t Intensivity, uint8_t ScanLimit)
@@ -215,3 +383,14 @@ void __DS_MAX7219_SendConfigData(DS_MAX7219 *Display)
         HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_SET);
     }
 }
+
+uint8_t __DS_Max7219_MakeNumberGreaterOne(float Number, uint8_t Counter)
+{
+    if (Number < 1)
+    {
+        Counter++;
+        Counter = __DS_Max7219_MakeNumberGreaterOne(Number * 10, Counter);
+    }
+
+    return Counter;
+}