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Version 1.1

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2024-04-29 19:57:00 +03:00
parent 476cb55c91
commit 8c870810b1
7 changed files with 523 additions and 55 deletions
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229
Core/Src/DS_MAX7219.c Normal file
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#include "DS_MAX7219.h"
void DS_MAX7219_Init(DS_MAX7219* Display, SPI_HandleTypeDef* SPI, GPIO_TypeDef* PORT_CS, uint16_t Pin_CS)
{
HAL_Delay(500);
Display->SPI = SPI;
Display->Intensivity = 8;
Display->ScanLimit = 7;
Display->DecodeMode = 0;
Display->EnableDecodeMode = true;
Display->PORT_CS = PORT_CS;
Display->Pin_CS = Pin_CS;
Display->DisplaData[0]=
Display->DisplaData[1]=
Display->DisplaData[2]=
Display->DisplaData[3]=
Display->DisplaData[4]=
Display->DisplaData[5]=
Display->DisplaData[6]=
Display->DisplaData[7]=' ';
__DS_MAX7219_SendConfigData(Display);
DS_MAX7219_UpdateDisplay(Display);
}
void DS_MAX7219_Print(DS_MAX7219* Display, int64_t Number)
{
if(Number<0)
{
Display->DisplaData[0] = '-';
Number = Number * -1;
}
else
Display->DisplaData[0] = ' ';
uint8_t t = Number/1000000;
if(t==0)
Display->DisplaData[1] = ' ';
else if(t<10)
{
Display->DisplaData[1] = t;
Number = Number - t*1000000;
}
else
{
Display->DisplaData[0]=
Display->DisplaData[1]=
Display->DisplaData[2]=
Display->DisplaData[3]=
Display->DisplaData[4]=
Display->DisplaData[5]=
Display->DisplaData[6]=
Display->DisplaData[7]='9';
}
t = Number / 100000;
if(t==0)
Display->DisplaData[2] = ' ';
else
{
Display->DisplaData[2] = t;
Number = Number - t*100000;
}
t = Number / 10000;
if(t==0)
Display->DisplaData[3] = ' ';
else
{
Display->DisplaData[3] = t;
Number = Number - t*10000;
}
t = Number / 1000;
if(t==0)
Display->DisplaData[4] = ' ';
else
{
Display->DisplaData[4] = t;
Number = Number - t*1000;
}
t = Number / 100;
if(t==0)
Display->DisplaData[5] = ' ';
else
{
Display->DisplaData[5] = t;
Number = Number - t*100;
}
t = Number / 10;
if(t==0)
Display->DisplaData[6] = ' ';
else
{
Display->DisplaData[6] = t;
Number = Number - t*10;
}
Display->DisplaData[7] = Number;
}
void DS_MAX7219_UpdateDisplay(DS_MAX7219* Display)
{
for (uint8_t i = 0; i < 8; i++)
{
HAL_GPIO_WritePin(Display->PORT_CS, Display->Pin_CS, GPIO_PIN_RESET);
uint16_t Data = (i+1<<8) + __DS_MAX7219_ConvertSymbol(Display->DisplaData[7-i]);
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)
{
Display->DecodeMode = DecodeMode;
if(Intensivity>0xF)
Display->Intensivity = 0xF;
else
Display->Intensivity = Intensivity;
if(ScanLimit>0x7)
Display->ScanLimit = 0x7;
else
Display->ScanLimit = ScanLimit;
__DS_MAX7219_SendConfigData(Display);
}
void __DS_MAX7219_SendConfigData(DS_MAX7219* Display)
{
uint16_t Data[5];
//0 - DecodeMode 0x9;
//1 - Intensivity 0xA;
//2 - ScanLimit 0xB;
//3 - Shutdown mode 0xC;
//4 - Display Test 0xF;
if(Display->EnableDecodeMode)
Data[0] = 0x9FF;
else
Data[0] = 0x900;
Data[1] = 0xA00 + Display->Intensivity;
Data[2] = 0xB00 + Display->ScanLimit;
Data[3] = 0xC00 + 1;
Data[4] = 0xF00 + 0;
for (uint8_t i = 0; i < 5; i++)
{
HAL_GPIO_WritePin(Display->PORT_CS, Display->Pin_CS, GPIO_PIN_RESET);
HAL_SPI_Transmit(Display->SPI, (uint8_t*) &Data[i], 1, 100);
HAL_GPIO_WritePin(Display->PORT_CS, Display->Pin_CS, GPIO_PIN_SET);
}
}
uint8_t __DS_MAX7219_ConvertSymbol(char Symbol)
{
switch (Symbol)
{
// case '0':
// return 0;
// break;
// case '1':
// return 1;
// break;
// case '2':
// return 3;
// break;
// case '3':
// return 3;
// break;
// case '4':
// return 4;
// break;
// case '5':
// return 5;
// break;
// case '6':
// return 6;
// break;
// case '7':
// return 7;
// break;
// case '8':
// return 8;
// break;
// case '9':
// return 9;
// break;
case '-':
return 10;
break;
case 'E':
return 11;
break;
case 'H':
return 12;
break;
case 'L':
return 13;
break;
case 'P':
return 14;
break;
case ' ':
return 15;
break;
default:
break;
}
return Symbol;
}