396 lines
8.4 KiB
C
396 lines
8.4 KiB
C
#include "../inc/DS_MAX7219.h"
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#include <stdio.h>
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#include "DS_MAX7219.h"
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void DS_MAX7219_Init(DS_MAX7219* Display, SPI_HandleTypeDef* SPI, GPIO_TypeDef* Port_CS, uint16_t Pin_CS)
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{
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HAL_Delay(500);
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Display->SPI = SPI;
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Display->DecodeMode = 0;
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Display->Intensivity = 8;
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Display->ScanLimit = 7;
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Display->EnableDecodeMode = true;
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Display->Dots = 0;
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Display->Port_CS = Port_CS;
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Display->Pin_CS = Pin_CS;
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for (uint8_t i = 0; i < 9; i++)
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{
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Display->DisplayData[i] = ' ';
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}
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__DS_MAX7219_SendConfigData(Display);
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DS_MAX7219_UpdataDisplay(Display);
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}
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void DS_MAX7219_EnableDots(DS_MAX7219* Display, uint8_t Dots)
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{
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Display->Dots = Dots;
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}
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void DS_MAX7219_Print(DS_MAX7219* Display, int64_t Number)
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{
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if (Number<0)
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{
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Display->DisplayData[0] = '-';
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Number = Number * -1;
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}
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else
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Display->DisplayData[0] = ' ';
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uint8_t t = Number/1000000;
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if (t==0)
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Display->DisplayData[1] = ' ';
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else if (t<10)
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{
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Display->DisplayData[1] = t;
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Number = Number - t*1000000;
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}
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else
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{
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Display->DisplayData[0] =
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Display->DisplayData[1] =
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Display->DisplayData[2] =
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Display->DisplayData[3] =
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Display->DisplayData[4] =
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Display->DisplayData[5] =
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Display->DisplayData[6] =
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Display->DisplayData[7] = '9';
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return;
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}
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t = Number/100000;
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if ((t==0)&&(Display->DisplayData[1] == ' '))
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Display->DisplayData[2] = ' ';
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else
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{
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Display->DisplayData[2] = t;
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Number = Number - t*100000;
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}
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t = Number/10000;
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if ((t==0)&&(Display->DisplayData[2] == ' '))
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Display->DisplayData[3] = ' ';
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else
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{
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Display->DisplayData[3] = t;
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Number = Number - t*10000;
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}
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t = Number/1000;
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if ((t==0)&&(Display->DisplayData[3] == ' '))
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Display->DisplayData[4] = ' ';
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else
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{
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Display->DisplayData[4] = t;
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Number = Number - t*1000;
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}
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t = Number/100;
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if ((t==0)&&(Display->DisplayData[4] == ' '))
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Display->DisplayData[5] = ' ';
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else
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{
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Display->DisplayData[5] = t;
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Number = Number - t*100;
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}
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t = Number/10;
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if ((t==0)&&(Display->DisplayData[5] == ' '))
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Display->DisplayData[6] = ' ';
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else
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{
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Display->DisplayData[6] = t;
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Number = Number - t*10;
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}
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Display->DisplayData[7] = Number;
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}
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void DS_MAX7219_PrintFloat(DS_MAX7219* Display, float Number)
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{
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uint64_t tempNumber = 0;
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if (Number<0)
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{
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Display->DisplayData[0] = '-';
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Number = Number * -1;
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}
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else
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Display->DisplayData[0] = ' ';
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if (Number > 9999999)
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{
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tempNumber = 100000000;
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}
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if (Number == 0)
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{
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tempNumber = 0;
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DS_MAX7219_EnableDots(Display, 0);
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}
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else if (Number < 1)
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{
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uint8_t Zeroes = __DS_Max7219_MakeNumberGreaterOne(Number, 0);
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if (Zeroes > 8)
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{
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tempNumber = 100000000;
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}
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for (uint8_t i = 0; i < Zeroes; i++)
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{
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Display->DisplayData[i+1] = 0;
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}
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tempNumber = Number * 1000000;
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DS_MAX7219_EnableDots(Display, 0x40);
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}
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else
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{
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if (Number < 10)
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{
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tempNumber = Number * 100000;
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DS_MAX7219_EnableDots(Display, 0x20);
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}
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if (Number < 100)
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{
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tempNumber = Number * 10000;
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DS_MAX7219_EnableDots(Display, 0x10);
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}
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if (Number < 1000)
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{
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tempNumber = Number * 1000;
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DS_MAX7219_EnableDots(Display, 0x8);
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}
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if (Number < 10000)
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{
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tempNumber = Number * 100;
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DS_MAX7219_EnableDots(Display, 0x4);
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}
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if (Number < 100000)
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{
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tempNumber = Number * 10;
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DS_MAX7219_EnableDots(Display, 0x2);
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}
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if (Number < 1000000)
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{
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tempNumber = Number * 1;
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DS_MAX7219_EnableDots(Display, 0x1);
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}
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}
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uint8_t t = tempNumber/1000000;
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if (t==0 && Display->DisplayData[1] != 0)
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Display->DisplayData[1] = ' ';
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else if (t<10)
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{
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Display->DisplayData[1] = t;
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tempNumber = tempNumber - t*1000000;
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}
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else
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{
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Display->DisplayData[0] =
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Display->DisplayData[1] =
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Display->DisplayData[2] =
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Display->DisplayData[3] =
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Display->DisplayData[4] =
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Display->DisplayData[5] =
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Display->DisplayData[6] =
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Display->DisplayData[7] = '9';
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return;
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}
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t = tempNumber/100000;
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if ((t==0)&&(Display->DisplayData[1] == ' '))
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Display->DisplayData[2] = ' ';
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else
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{
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Display->DisplayData[2] = t;
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tempNumber = tempNumber - t*100000;
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}
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t = tempNumber/10000;
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if ((t==0)&&(Display->DisplayData[2] == ' '))
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Display->DisplayData[3] = ' ';
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else
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{
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Display->DisplayData[3] = t;
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tempNumber = tempNumber - t*10000;
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}
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t = tempNumber/1000;
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if ((t==0)&&(Display->DisplayData[3] == ' '))
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Display->DisplayData[4] = ' ';
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else
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{
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Display->DisplayData[4] = t;
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tempNumber = tempNumber - t*1000;
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}
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t = tempNumber/100;
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if ((t==0)&&(Display->DisplayData[4] == ' '))
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Display->DisplayData[5] = ' ';
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else
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{
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Display->DisplayData[5] = t;
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tempNumber = tempNumber - t*100;
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}
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t = tempNumber/10;
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if ((t==0)&&(Display->DisplayData[5] == ' '))
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Display->DisplayData[6] = ' ';
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else
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{
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Display->DisplayData[6] = t;
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tempNumber = tempNumber - t*10;
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}
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Display->DisplayData[7] = tempNumber;
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}
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uint8_t __DS_MAX7219_ConvertSymbol(char Symbol)
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{
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switch (Symbol)
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{
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case '0':
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return 0;
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break;
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case '1':
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return 1;
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break;
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case '2':
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return 2;
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break;
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case '3':
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return 3;
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break;
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case '4':
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return 4;
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break;
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case '5':
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return 5;
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break;
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case '6':
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return 6;
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break;
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case '7':
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return 7;
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break;
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case '8':
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return 8;
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break;
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case '9':
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return 9;
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break;
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case '-':
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return 10;
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break;
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case 'E':
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return 11;
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break;
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case 'H':
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return 12;
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break;
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case 'L':
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return 13;
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break;
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case 'P':
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return 14;
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break;
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case ' ':
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return 15;
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break;
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default:
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break;
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}
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return Symbol;
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}
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void DS_MAX7219_UpdataDisplay(DS_MAX7219 *Display)
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{
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for (uint8_t i = 0; i < 8; i++)
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{
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uint16_t Data = ((i+1)<<8) + __DS_MAX7219_ConvertSymbol(Display->DisplayData[7-i]) + ((Display->Dots >> i & (1)) << 7);
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HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_RESET);
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HAL_SPI_Transmit(Display->SPI, (uint8_t*) &Data, 1, 100);
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HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_SET);
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}
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}
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void DS_MAX7219_ConfigureDisplay(DS_MAX7219 *Display, uint8_t DecodeMode, uint8_t Intensivity, uint8_t ScanLimit)
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{
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Display->DecodeMode = DecodeMode;
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if(Intensivity>0xF)
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Display->Intensivity = 0xF;
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else
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Display->Intensivity = Intensivity;
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if(ScanLimit>0x7)
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Display->ScanLimit = 0x7;
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else
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Display->ScanLimit = ScanLimit;
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__DS_MAX7219_SendConfigData(Display);
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}
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void __DS_MAX7219_SendConfigData(DS_MAX7219 *Display)
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{
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uint16_t Data[5];
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// 0 - Decode mode 0x9
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// 1 - Intensivity 0xA
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// 2 - ScanLimit 0xB
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// 3 - Shutdown mode 0xC
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// 4 - Display test 0xF
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if (Display->EnableDecodeMode)
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Data[0]=0x9FF;
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else
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Data[0]=0x900;
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Data[1] = 0xA00 + Display->Intensivity;
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Data[2] = 0xB00 + Display->ScanLimit;
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Data[3] = 0xC00 + 1;
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Data[4] = 0xF00 + 0;
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for (uint8_t i = 0; i < 5; i++)
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{
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HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_RESET);
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HAL_SPI_Transmit(Display->SPI, (uint8_t*) &Data[i], 1, 100);
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HAL_GPIO_WritePin(Display->Port_CS, Display->Pin_CS, GPIO_PIN_SET);
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}
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}
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uint8_t __DS_Max7219_MakeNumberGreaterOne(float Number, uint8_t Counter)
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{
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if (Number < 1)
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{
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Counter++;
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Counter = __DS_Max7219_MakeNumberGreaterOne(Number * 10, Counter);
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}
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return Counter;
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} |