数码管驱动芯片的芯片

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adersonl 发布时间：2017-5-20 11:05

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本帖最后由 adersonl 于 2017-5-20 15:27 编辑

工作中经常要用到大量的数码管，点阵，LED

一般都是用74系列的芯片去驱动，因为公司的项目需求找了这颗芯片现在分享驱动和原理图过

$3E_{Q1VD30GJ(~[[5LI7VZ4.png$

enum Brightness
{
Level1 = 0x88,
Level2,
Level3,
Level4,
Level5,
Level6,
Level7,
Level8,
LEDOFF = 0x80
};
uint8_t NUM[11][5] =
{
{0xFF, 0x41, 0x41, 0x41, 0xFF},//0
{0x00, 0x00, 0x7F, 0x00, 0x00},//1
{0x79, 0x49, 0x49, 0x49, 0x4F},//2
{0x49, 0x49, 0x49, 0x49, 0xFF},//3
{0x0F, 0x08, 0x08, 0x08, 0xFF},//4
{0x4F, 0x49, 0x49, 0x49, 0x79},//5
{0xFF, 0x49, 0x49, 0x49, 0x79},//6
{0x01, 0x01, 0x01, 0x01, 0xFF},//7
{0xFF, 0x49, 0x49, 0x49, 0xFF},//8
{0x4F, 0x49, 0x49, 0x49, 0xFF},//9
{0x00, 0x00, 0x22, 0x00, 0x00},//:
};
void TM1640_GPIO_Init(void)
{
GPIO_Init(GPIOA, (GPIO_Pin_TypeDef)(GPIO_PIN_1), GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(GPIOA, (GPIO_Pin_TypeDef)(GPIO_PIN_2), GPIO_MODE_OUT_PP_HIGH_FAST);
GPIO_Init(GPIOC, (GPIO_Pin_TypeDef)(T2_Din | T2_Clk), GPIO_MODE_OUT_PP_HIGH_FAST);
}
void Delay(uint16_t nCount)
{
while (nCount != 0)
{
nCount--;
}
}
void TM1640_Start(void)
{
GPIO_WriteHigh(GPIOA, T1_Clk);
Delay(10);
GPIO_WriteHigh(GPIOA, T1_Din);
Delay(10);
GPIO_WriteLow(GPIOA, T1_Din);
Delay(10);
GPIO_WriteLow(GPIOA, T1_Clk);
Delay(10);
}
void TM1640_Stop(void)
{
GPIO_WriteLow(GPIOA, T1_Clk);
Delay(10);
GPIO_WriteLow(GPIOA, T1_Din);
Delay(10);
GPIO_WriteHigh(GPIOA, T1_Clk);
Delay(10);
GPIO_WriteHigh(GPIOA, T1_Din);
Delay(10);
}
void TM1640_2_Start(void)
{
GPIO_WriteHigh(GPIOC, T2_Clk);
Delay(10);
GPIO_WriteHigh(GPIOC, T2_Din);
Delay(10);
GPIO_WriteLow(GPIOC, T2_Din);
Delay(10);
GPIO_WriteLow(GPIOC, T2_Clk);
Delay(10);
}
void TM1640_2_Stop(void)
{
GPIO_WriteLow(GPIOC, T2_Clk);
Delay(10);
GPIO_WriteLow(GPIOC, T2_Din);
Delay(10);
GPIO_WriteHigh(GPIOC, T2_Clk);
Delay(10);
GPIO_WriteHigh(GPIOC, T2_Din);
Delay(10);
}
void TM1640_Write_Byte(uint8_t dat)
{
uint8_t i;
for(i = 0; i < 8; i++)
{
GPIO_WriteLow(GPIOA, T1_Clk);
if(dat & 0x01)
{
GPIO_WriteHigh(GPIOA, T1_Din);
}
else
{
GPIO_WriteLow(GPIOA, T1_Din);
}
Delay(10);
GPIO_WriteHigh(GPIOA, T1_Clk);
Delay(10);
dat >>= 1;
}
GPIO_WriteLow(GPIOA, T1_Clk);
Delay(10);
}
void TM1640_2_Write_Byte(uint8_t dat)
{
uint8_t i;
for(i = 0; i < 8; i++)
{
GPIO_WriteLow(GPIOC, T2_Clk);
if(dat & 0x01)
{
GPIO_WriteHigh(GPIOC, T2_Din);
}
else
{
GPIO_WriteLow(GPIOC, T2_Din);
}
Delay(10);
GPIO_WriteHigh(GPIOC, T2_Clk);
Delay(10);
dat >>= 1;
}
GPIO_WriteLow(GPIOC, T2_Clk);
Delay(10);
}
void TM1640_Init(void)
{
TM1640_GPIO_Init();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(Level8);
TM1640_Stop();
TM1640_2_Start();
TM1640_2_Write_Byte(Level8);
TM1640_2_Stop();
}
void TM1640_Bit1(uint8_t *Dat)
{
uint8_t i;
TM1640_Start();
TM1640_Write_Byte(0x40);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xC0);
for(i = 0; i < 5; i++)
{
TM1640_Write_Byte(*(Dat++));
}
TM1640_Stop();
}
void TM1640_Clear_C5(void)
{
TM1640_Start();
TM1640_Write_Byte(0x44);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xC5);
TM1640_Write_Byte(0x00);
TM1640_Stop();
TM1640_Start();
TM1640_Write_Byte(0x44);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xCD);
TM1640_Write_Byte(0x00);
TM1640_Stop();
TM1640_2_Start();
TM1640_2_Write_Byte(0xC4);
TM1640_2_Write_Byte(0x00);
TM1640_2_Stop();
}
void TM1640_ClearAll(void)
{
uint8_t i;
TM1640_Start();
TM1640_Write_Byte(0x40);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xC0);
for(i = 0; i < 16; i++)
{
TM1640_Write_Byte(0x00);
}
TM1640_Stop();
TM1640_2_Start();
TM1640_2_Write_Byte(0x40);
TM1640_2_Stop();
Delay(10);
TM1640_2_Start();
TM1640_2_Write_Byte(0xC6);
for(i = 0; i < 16; i++)
{
TM1640_2_Write_Byte(0x00);
}
TM1640_2_Stop();
}
void TM1640_Bit2(uint8_t *Dat)
{
uint8_t i;
TM1640_Start();
TM1640_Write_Byte(0x40);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xC6);
for(i = 0; i < 5; i++)
{
TM1640_Write_Byte(*(Dat++));
}
TM1640_Stop();
}
void TM1640_Bit3(uint8_t En)
{
TM1640_Start();
TM1640_Write_Byte(0x44);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xCC);
if(En)
TM1640_Write_Byte(NUM[10][2]);
else
TM1640_Write_Byte(0x00);
TM1640_Stop();
}
void TM1640_2_Bit4(uint8_t *Dat)
{
uint8_t i;
TM1640_Start();
TM1640_Write_Byte(0x44);
TM1640_Stop();
Delay(10);
TM1640_Start();
TM1640_Write_Byte(0xCE);
TM1640_Write_Byte(*(Dat++));
TM1640_Stop();
TM1640_2_Start();
TM1640_2_Write_Byte(0x44);
TM1640_2_Stop();
Delay(10);
TM1640_2_Start();
TM1640_2_Write_Byte(0xC0);
for(i = 1; i < 5; i++)
{
TM1640_2_Write_Byte(*(Dat++));
}
TM1640_2_Stop();
}
void TM1640_2_Bit5(uint8_t *Dat)
{
uint8_t i;
TM1640_2_Start();
TM1640_2_Write_Byte(0x40);
TM1640_2_Stop();
Delay(10);
TM1640_2_Start();
TM1640_2_Write_Byte(0xC5);
for(i = 0; i < 5; i++)
{
TM1640_2_Write_Byte(*(Dat++));
}
TM1640_2_Stop();
}