基于STM32音响系统控制设计（一）（实现音乐频谱的显示）

`之前使用AVR单片机做了音乐频谱的显示，可是发现其速度太慢，而且内存太小，所以现在使用了STM32，换了一块大的液晶屏，并采用UCOS ii以方便以后功能的添加。FFT使用了官方的DSP库，256点变换。效果图：

视频演示地址：http://www.tudou.com/programs/view/G1Wd8GeM9Sw/

下面是部分源代码：
TFT.c

#include "TFT.h"
U16 TFT_ChipID;
static void __FSMCConfig(void)
{
FSMC_NORSRAMInitTypeDef FSMC_NORSRAMInitStructure;
FSMC_NORSRAMTimingInitTypeDef p;
/*-- FSMC Configuration ------------------------------------------------------*/
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_FSMC, ENABLE);
/* FSMC_Bank1_NORSRAM4 timing configuration */
p.FSMC_AddressSetupTime = 1;
p.FSMC_AddressHoldTime = 0;
p.FSMC_DataSetupTime = 5;
p.FSMC_BusTurnAroundDuration = 0;
p.FSMC_CLKDivision = 0;
p.FSMC_DataLatency = 0;
p.FSMC_AccessMode = FSMC_AccessMode_B;
/* FSMC_Bank1_NORSRAM4 configured as follows:
- Data/Address MUX = Disable
- Memory Type = SRAM
- Data Width = 16bit
- Write Operation = Enable
- Extended Mode = Disable
- Asynchronous Wait = Disable */
FSMC_NORSRAMInitStructure.FSMC_Bank = FSMC_Bank1_NORSRAM4;
FSMC_NORSRAMInitStructure.FSMC_DataAddressMux = FSMC_DataAddressMux_Disable;
FSMC_NORSRAMInitStructure.FSMC_MemoryType = FSMC_MemoryType_NOR;
FSMC_NORSRAMInitStructure.FSMC_MemoryDataWidth = FSMC_MemoryDataWidth_16b;
FSMC_NORSRAMInitStructure.FSMC_BurstAccessMode = FSMC_BurstAccessMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalPolarity = FSMC_WaitSignalPolarity_Low;
FSMC_NORSRAMInitStructure.FSMC_WrapMode = FSMC_WrapMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignalActive = FSMC_WaitSignalActive_BeforeWaitState;
FSMC_NORSRAMInitStructure.FSMC_WriteOperation = FSMC_WriteOperation_Enable;
FSMC_NORSRAMInitStructure.FSMC_WaitSignal = FSMC_WaitSignal_Disable;
FSMC_NORSRAMInitStructure.FSMC_ExtendedMode = FSMC_ExtendedMode_Disable;
FSMC_NORSRAMInitStructure.FSMC_WriteBurst = FSMC_WriteBurst_Disable;
FSMC_NORSRAMInitStructure.FSMC_ReadWriteTimingStruct = &p;
FSMC_NORSRAMInitStructure.FSMC_WriteTimingStruct = &p;
FSMC_NORSRAMInit(&FSMC_NORSRAMInitStructure);
/* Enable FSMC_Bank1_NORSRAM4 */
FSMC_NORSRAMCmd(FSMC_Bank1_NORSRAM4, ENABLE);
}
static void __GpioConfig(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
#ifndef FSMC_TFT
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE|RCC_APB2Periph_GPIOD, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(TFT_DATA_PIN, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = TFT_CS|TFT_RS|TFT_WR|TFT_RD|TFT_RESET;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(TFT_COTROL_PIN, &GPIO_InitStructure);
GPIO_ResetBits(TFT_COTROL_PIN, TFT_RESET);
GPIO_SetBits(TFT_COTROL_PIN, TFT_CS);
GPIO_SetBits(TFT_COTROL_PIN, TFT_RS);
GPIO_SetBits(TFT_COTROL_PIN, TFT_WR);
GPIO_SetBits(TFT_COTROL_PIN, TFT_RD);
GPIO_SetBits(TFT_COTROL_PIN, TFT_RESET);
#else
/*FSMC*/
/* Enable GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
RCC_APB2PeriphClockCmd (RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE |
RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG |
RCC_APB2Periph_GPIOB |RCC_APB2Periph_AFIO, ENABLE);
/* Set PG.15(REST), Out put*/
GPIO_InitStructure.GPIO_Pin = TFT_RESET;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(TFT_COTROL_PIN, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = TFT_LED;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Set PD.00(D2), PD.01(D3), PD.04(NOE), PD.05(NWE), PD.08(D13), PD.09(D14),
PD.10(D15), PD.14(D0), PD.15(D1) as alternate
function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_5 |
GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_14 |
GPIO_Pin_15;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Set PE.07(D4), PE.08(D5), PE.09(D6), PE.10(D7), PE.11(D8), PE.12(D9), PE.13(D10),
PE.14(D11), PE.15(D12) as alternate function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 |
GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13 | GPIO_Pin_14 |
GPIO_Pin_15;
GPIO_Init(GPIOE, &GPIO_InitStructure);
/* Set PF.00(A0 (RS)) as alternate function push pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_Init(GPIOF, &GPIO_InitStructure);
/* Set PG.12(NE4 (LCD/CS)) as alternate function push pull - CE3(LCD /CS) */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_Init(GPIOG, &GPIO_InitStructure);
GPIO_SetBits(TFT_COTROL_PIN, TFT_RESET);
#endif /*FSMC_TFT*/
}
#ifndef FSMC_TFT
static void __DB_AS_InPut(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// DB15--0
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(TFT_DATA_PIN, &GPIO_InitStructure);
}
static void __DB_AS_OutPut(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
// DB15--0
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(TFT_DATA_PIN, &GPIO_InitStructure);
}
#endif /*FSMC_TFT*/
static void __WriteReg(U32 tftReg,U32 tftRegValue)
{
#ifndef FSMC_TFT
/* Write 16-bit Index, then Write Reg */
GPIO_ResetBits (TFT_COTROL_PIN, TFT_CS);//ClrCs
GPIO_ResetBits (TFT_COTROL_PIN, TFT_RS);//ClrRs
GPIO_ResetBits (TFT_COTROL_PIN, TFT_WR);//ClrWr
GPIO_Write (TFT_DATA_PIN, tftReg);//LCD_Write(TFT_Reg);
GPIO_SetBits (TFT_COTROL_PIN, TFT_WR);//SetWr
/* Write 16-bit Reg */
GPIO_SetBits (TFT_COTROL_PIN, TFT_RS);//SetRs
GPIO_ResetBits (TFT_COTROL_PIN, TFT_WR);//ClrWr
GPIO_Write (TFT_DATA_PIN, tftRegValue);//LCD_Write(TFT_RegValue);
GPIO_SetBits (TFT_COTROL_PIN, TFT_WR);//SetWr
GPIO_SetBits (TFT_COTROL_PIN, TFT_CS);//SetCs
#else
/*FSMC*/
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = tftReg;
/* Write 16-bit Reg */
TFT->TFT_RAM = tftRegValue;
#endif /*FSMC_TFT*/
}
static U32 __ReadReg(U32 tftReg)
{
#ifndef FSMC_TFT
U32 data;
/* Write 16-bit Index (then Read Reg) */
GPIO_ResetBits (TFT_COTROL_PIN, TFT_CS);//ClrCs
GPIO_ResetBits (TFT_COTROL_PIN, TFT_RS);//ClrRs
GPIO_ResetBits (TFT_COTROL_PIN, TFT_WR);//ClrWr
GPIO_Write (TFT_DATA_PIN, TFT_Reg);//LCD_Write(LCD_Reg);
GPIO_SetBits (TFT_COTROL_PIN, TFT_WR);//SetWr
/* Read 16-bit Reg */
GPIO_SetBits (TFT_COTROL_PIN, TFT_RS);//SetRs
__DB_AS_InPut();
GPIO_ResetBits (TFT_COTROL_PIN, TFT_RD);//ClrRd
GPIO_SetBits (TFT_COTROL_PIN, TFT_RD);//SetRd
data = GPIO_ReadInputData(TFT_DATA_PIN);
GPIO_SetBits (TFT_COTROL_PIN, TFT_CS);//SetCs
__DB_AS_OutPut();
return data;
#else
/*FSMC*/
/* Write 16-bit Index (then Read Reg) */
TFT->TFT_REG = tftReg;
/* Read 16-bit Reg */
//data = TFT->TFT_RAM;
return (TFT->TFT_RAM);
#endif /*FSMC_TFT*/
}
#if 0
static void __WriteGRAM(U16 *pRGB_Code,U32 pixelNum)
{
#ifndef FSMC_TFT
//u32 i=0;
GPIO_ResetBits(TFT_COTROL_PIN, TFT_CS);//ClrCs
GPIO_ResetBits(TFT_COTROL_PIN, TFT_RS);//ClrRs
GPIO_ResetBits(TFT_COTROL_PIN, TFT_WR);//ClrWr
GPIO_Write(TFT_DATA_PIN, 0x0022);
GPIO_SetBits(TFT_COTROL_PIN, TFT_WR);//SetWr
GPIO_SetBits(TFT_COTROL_PIN, TFT_RS);//SetRs
while(pixelNum>0)
{
GPIO_ResetBits(TFT_COTROL_PIN, TFT_WR);//ClrWr
GPIO_Write(TFT_DATA_PIN, *pRGB_Code);
GPIO_SetBits(TFT_COTROL_PIN, TFT_WR);//SetWr
pixelNum--;
pRGB_Code++;
}
GPIO_SetBits(TFT_COTROL_PIN, TFT_CS);//SetCs
#else
/*FSMC*/
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
while(pixelNum>0)
{
TFT->TFT_RAM = *pRGB_Code;
pixelNum--;
pRGB_Code++;
}
#endif /*FSMC_TFT*/
}
#endif
void TFT_ClearAll(U32 color)
{
U32 i=0;
__WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
__WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
__WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
__WriteReg(0x53, 0x013F); // Vertical GRAM Start Address
__WriteReg(0x20, 0); // GRAM horizontal Address
__WriteReg(0x21, 0);
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
while(i
{
/* Write 16-bit RGB */
TFT->TFT_RAM = color;
i++;
}
}
void TFT_SetBackLED(U32 data)
{
TIM_OCInitTypeDef TIM_OCInitStructure;
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM2;
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_OCPolarity=TIM_OCPolarity_High;
TIM_OCInitStructure.TIM_Pulse=data;
TIM_OC3Init(TIM3, &TIM_OCInitStructure);
}
U8 TFT_Init(void)
{
U8 statues=0;
U32 i;
__GpioConfig();
__FSMCConfig();
TFT_ChipID=__ReadReg(0);
__WriteReg(0xE5, 0x8000); // Set the internal vcore voltage
__WriteReg(0x00,0x0001);
for(i=50000;i>0;i--);
__WriteReg(0x01,0x0100); //Driver Output Contral. 0x0100
__WriteReg(0x02,0x0700); //LCD Driver Waveform Contral.
__WriteReg(0x03,0x0030); //Entry Mode Set. 0x1018 0x1030
__WriteReg(0x04,0x0000); //Scalling Contral.
__WriteReg(0x08,0x0202); //Display Contral 2.(0x0207)
__WriteReg(0x09,0x0000); //Display Contral 3.(0x0000)
__WriteReg(0x0a,0x0000); //Frame Cycle Contal.(0x0000)
__WriteReg(0x0c,0x0000); //Extern Display Interface Contral 1.(0x0000)
__WriteReg(0x0d,0x0000); //Frame Maker Position.
__WriteReg(0x0f,0x0000); //Extern Display Interface Contral 2.
__WriteReg(0x2b,0x0020); //frame rate and color control(0x0000)
__WriteReg(0x10,0x0000); //Power Control 1.(0x16b0)
__WriteReg(0x11,0x0004); //Power Control 2.(0x0001)
__WriteReg(0x12,0x0000); //Power Control 3.(0x0138)
__WriteReg(0x13,0x0000); //Power Control 4.
for(i=60000;i>0;i--);
__WriteReg(0x10, 0x17B0); // SAP, BT[3:0], AP, DSTB, SLP, STB
__WriteReg(0x11, 0x0001); // DC1[2:0], DC0[2:0], VC[2:0]
for(i=60000;i>0;i--); // Delay 50ms
__WriteReg(0x12, 0x013e); // VREG1OUT voltage
for(i=60000;i>0;i--); // Delay 50ms
__WriteReg(0x13, 0x1c00); // VDV[4:0] for VCOM amplitude
__WriteReg(0x29, 0x001e); // VCM[4:0] for VCOMH
for(i=60000;i>0;i--);
__WriteReg(0x20, 0x0000); // GRAM horizontal Address
__WriteReg(0x21, 0x0000); // GRAM Vertical Address
// ----------- Adjust the Gamma Curve ----------//
__WriteReg(0x30, 0x0002);
__WriteReg(0x31, 0x0606);
__WriteReg(0x32, 0x0501);
__WriteReg(0x35, 0x0206);
__WriteReg(0x36, 0x0504);
__WriteReg(0x37, 0x0707);
__WriteReg(0x38, 0x0306);
__WriteReg(0x39, 0x0007);
__WriteReg(0x3C, 0x0700);
__WriteReg(0x3D, 0x0700);
//------------------ Set GRAM area ---------------//
__WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
__WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
__WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
__WriteReg(0x53, 0x013F); // Vertical GRAM End Address
__WriteReg(0x60, 0x2700); // Gate Scan Line
__WriteReg(0x61, 0x0001); // NDL,VLE, REV
__WriteReg(0x6A, 0x0000); // set scrolling line
//-------------- Partial Display Control ---------//
__WriteReg(0x80, 0x0000);
__WriteReg(0x81, 0x0000);
__WriteReg(0x82, 0x0000);
__WriteReg(0x83, 0x0000);
__WriteReg(0x84, 0x0000);
__WriteReg(0x85, 0x0000);
//-------------- Panel Control -------------------//
__WriteReg(0x90, 0x0010);
__WriteReg(0x92, 0x0000);
__WriteReg(0x93, 0x0003);
__WriteReg(0x95, 0x0110);
__WriteReg(0x97, 0x0000);
__WriteReg(0x98, 0x0000);
__WriteReg(0x07, 0x0173); // 262K color and display ON
TFT_ClearAll(BACKGROUND_COLOR);//黑屏
return statues;
}
void TFT_SetPixelIndex(S32 x, S32 y, U32 pixelIndex)
{
if((x<0)||(y<0)||(x>=TFT_H_PIXEL)||(y>=TFT_V_PIXEL))
return;
__WriteReg(0x20, x); // GRAM horizontal Address
__WriteReg(0x21, y); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
TFT->TFT_RAM = pixelIndex;
}
U16 TFT_GetPixelIndex(S32 x, S32 y)
{
U32 tempData=0;
if((x<0)||(y<0)||(x>=TFT_H_PIXEL)||(y>=TFT_V_PIXEL))
return 0;
__WriteReg(0x20, x); // GRAM horizontal Address
__WriteReg(0x21, y); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
tempData=TFT->TFT_RAM;
tempData=TFT->TFT_RAM;
return (tempData);
}
void TFT_XorPoint(S32 x,S32 y)
{
U32 temp=0;
if((x<0)||(y<0)||(x>=TFT_H_PIXEL)||(y>=TFT_V_PIXEL))
return;
__WriteReg(0x20, x); // GRAM horizontal Address
__WriteReg(0x21, y); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
temp = TFT->TFT_RAM;
temp = TFT->TFT_RAM;
TFT->TFT_RAM = 0xFFFF-temp;
}
void TFT_DrawHLine(S32 x0, S32 y, S32 x1, U32 color)
{
U32 pixelNum =0;
if((x0>=TFT_H_PIXEL)||(y>=TFT_V_PIXEL)||(y<0))
return ;
if(x0<0)
x0=0;
if(x1>=TFT_H_PIXEL)
x1=TFT_H_PIXEL-1;
pixelNum = x1-x0+1;
__WriteReg(0x50, x0); // Horizontal GRAM Start Address
__WriteReg(0x51, x1); // Horizontal GRAM End Address
__WriteReg(0x52, y); // Vertical GRAM Start Address
__WriteReg(0x53, y); // Vertical GRAM End Address
__WriteReg(0x20, x0); // GRAM horizontal Address
__WriteReg(0x21, y); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
while(pixelNum>0)
{
TFT->TFT_RAM = color;
pixelNum--;
}
__WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
__WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
__WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
__WriteReg(0x53, 0x013F); // Vertical GRAM End Address
}
void TFT_DrawVLine(S32 x, S32 y0, S32 y1, U32 color)
{
U32 pixelNum =0;
if((x>=TFT_H_PIXEL)||(y0>=TFT_V_PIXEL)||(x<0))
return ;
if(y1>=TFT_V_PIXEL)
y1=TFT_V_PIXEL-1;
pixelNum = y1-y0+1;
__WriteReg(0x50, x); // Horizontal GRAM Start Address
__WriteReg(0x51, x); // Horizontal GRAM End Address
__WriteReg(0x52, y0); // Vertical GRAM Start Address
__WriteReg(0x53, y1); // Vertical GRAM End Address
__WriteReg(0x20, x); // GRAM horizontal Address
__WriteReg(0x21, y0); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
while(pixelNum>0)
{
TFT->TFT_RAM = color;
pixelNum--;
}
__WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
__WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
__WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
__WriteReg(0x53, 0x013F); // Vertical GRAM End Address
}
void TFT_FillRect(S32 x0, S32 y0, S32 x1, S32 y1,U32 color)
{
U32 pixelNum =0;
if((x0>=TFT_H_PIXEL)||(y0>=TFT_V_PIXEL))
return ;
if(x0<0)
x0=0;
if(y0<0)
y0=0;
if(x1>=TFT_H_PIXEL)
x1=TFT_H_PIXEL-1;
if(y1>=TFT_V_PIXEL)
y1=TFT_V_PIXEL-1;
pixelNum = (x1-x0+1)*(y1-y0+1);
__WriteReg(0x50, x0); // Horizontal GRAM Start Address
__WriteReg(0x51, x1); // Horizontal GRAM End Address
__WriteReg(0x52, y0); // Vertical GRAM Start Address
__WriteReg(0x53, y1); // Vertical GRAM End Address
__WriteReg(0x20, x0); // GRAM horizontal Address
__WriteReg(0x21, y0); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
while(pixelNum>0)
{
TFT->TFT_RAM = color;
pixelNum--;
}
__WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
__WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
__WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
__WriteReg(0x53, 0x013F); // Vertical GRAM End Address
}
void TFT_InverseRect(S32 x0, S32 y0, S32 x1, S32 y1)
{
U32 pixelNum =0;
U16 tempData=0;
if((x0>=TFT_H_PIXEL)||(y0>=TFT_V_PIXEL))
return ;
if(x0<0)
x0=0;
if(y0<0)
y0=0;
if(x1>=TFT_H_PIXEL)
x1=TFT_H_PIXEL-1;
if(y1>=TFT_V_PIXEL)
y1=TFT_V_PIXEL-1;
pixelNum = (x1-x0+1)*(y1-y0+1);
__WriteReg(0x50, x0); // Horizontal GRAM Start Address
__WriteReg(0x51, x1); // Horizontal GRAM End Address
__WriteReg(0x52, y0); // Vertical GRAM Start Address
__WriteReg(0x53, y1); // Vertical GRAM End Address
__WriteReg(0x20, x0); // GRAM horizontal Address
__WriteReg(0x21, y0); // GRAM Vertical Address
/* Write 16-bit Index, then Write Reg */
TFT->TFT_REG = 0x0022;
/* Write 16-bit RGB */
while(pixelNum>0)
{
tempData=TFT->TFT_RAM;
tempData=TFT->TFT_RAM;
tempData=0xffff-tempData;
TFT->TFT_RAM = tempData;
pixelNum--;
}
__WriteReg(0x50, 0x0000); // Horizontal GRAM Start Address
__WriteReg(0x51, 0x00EF); // Horizontal GRAM End Address
__WriteReg(0x52, 0x0000); // Vertical GRAM Start Address
__WriteReg(0x53, 0x013F); // Vertical GRAM End Address
}
void TFT_PutChar(FontStyle_Typedef *pFontStyle, S32 x,S32 y,S8 data)
{
U8 i,j,tempData;
OU8 *p;
data -= 0x20;
p = &pFontStyle->pFontSize->pFontBuffer[data * pFontStyle->pFontSize->FontVNum * pFontStyle->pFontSize->FontHNum];
for (i = 0; i < pFontStyle->pFontSize->FontHigh; i++)
{
tempData = p[i];
for (j=0;jpFontSize->FontWide;j++)
{
if ((tempData&0x01)==0x01)
TFT_SetPixelIndex(x+j,y+i,pFontStyle->FontColor);
else
{
if(pFontStyle->FontBackgroundColor<=0xffff)
TFT_SetPixelIndex(x+j,y+i,pFontStyle->FontBackgroundColor);
}
tempData>>=1;
}
}
}
void TFT_PutString(FontStyle_Typedef *pFontStyle, S32 x, S32 y, S8 *pData)
{
S32 xStart=x;
if(x<0)
xStart=0;
while(*pData)
{
switch(*pData)
{
case '
':
{
y+=pFontStyle->pFontSize->FontHigh;
}break;
case ' ':
{
x+=((4-((x - xStart) / pFontStyle->pFontSize->FontWide % 4)) * pFontStyle->pFontSize->FontWide);
if(x>(TFT_H_PIXEL-pFontStyle->pFontSize->FontWide))
{
x=xStart;
y+=pFontStyle->pFontSize->FontHigh;
}
}break;
case '
':
{
x=xStart;
}break;
default:
{
if((*pData>=0x20)&&(*pData<=0x7e))
{
TFT_PutChar(pFontStyle,x,y,*pData);
x+=pFontStyle->pFontSize->FontWide;
if(x>(TFT_H_PIXEL-pFontStyle->pFontSize->FontWide))
{
x=xStart;
y+=pFontStyle->pFontSize->FontHigh;
}
}
/*
else if((*pChar>=0xa1)&&(*pChar<=0xf7))
{
LCD_PutDZK16(x,y,pBuffer,&ZDK_RAM_Data[GetFontAddr(pChar)],FontColor,BackgroundColor);
x+=16;
if(x>(LCD_LevelPixels-16))
{
x=0;
y+=16;
}
pChar++;
}
*/
else
{
TFT_PutChar(pFontStyle,x,y,'');
x+=pFontStyle->pFontSize->FontWide;
if(x>(TFT_H_PIXEL-pFontStyle->pFontSize->FontWide))
{
x=xStart;
y+=pFontStyle->pFontSize->FontHigh;
}
}
}break;
}
pData++;
}
}

复制代码

Task.c

#include "Task.h"
#include
#define FFT_VALUE_START_NUM 3
#define MAG_VALUE_MAX 700
#define MAG_NUM 80
S32 OutFFT[NPT],InFFT[NPT],MagFFT[MAG_NUM],DisplayFFT[2][MAG_NUM];
OS_STK Task_MusicSpectrumStk[TASK_MUSIC_SPECTRUM_STK_SIZE];
OS_STK Task_StatusBarStk[TASK_STATUS_BAR_STK_SIZE];
OS_EVENT *UseTFTSem;
static void __DrawVBar(U32 x,U32 y,U32 len,U32 data0,U32 data1)
{
U32 y1;
if(data0>len-2)
data0=len-2;
if(data1>len)
data1=len;
y1=y+len;
TFT_FillRect(x, y, x+1, y1-data0,0x0);
TFT_FillRect(x, y1-data0, x+1, y1,0xe7e0);
TFT_FillRect(x, y1-data1, x+1, y1-data1+1,0xffff);
}
void Task_MusicSpectrum(void *p_arg)
{
INT8U err;
U32 i;
float x,y;
(void) p_arg;
OS_CPU_SysTickInit();
while(1)
{
//输入需要FFT变换的数据
for(i=0;i
{
InFFT[i]=ADC_ConvertedValue[i]&0xffffffc;
InFFT[i]<<=20;
}
//再次启动ADC的DMA
ADC_RestartDMA(NPT);
//FFT变换
cr4_fft_256_stm32(OutFFT, InFFT, NPT);
//功率计算
for(i=0;i
{
x=NPT*((float)((OutFFT[i+FFT_VALUE_START_NUM]<<16)>>16))/32768; /* sine_cosine --> cos */
y=NPT*((float)(OutFFT[i+FFT_VALUE_START_NUM] >> 16))/32768; /* sine_cosine --> sin */
MagFFT[i]=(U32)(sqrt(x*x+ y*y)/NPT*MAG_VALUE_MAX);
if(MagFFT[i]>DisplayFFT[0][i])
DisplayFFT[0][i]=MagFFT[i];
else if(DisplayFFT[0][i]>1)
DisplayFFT[0][i]-=2;
else
DisplayFFT[0][i]=0;
if(MagFFT[i]>DisplayFFT[1][i])
{
DisplayFFT[1][i]=MagFFT[i];
}
else if(DisplayFFT[1][i]>2)
{
DisplayFFT[1][i]-=1;
}
else
{
DisplayFFT[1][i]=2;
}
//显示
//TFT操作，等待其他任务释放资源
OSSemPend(UseTFTSem,0,&err);
__DrawVBar(i*3,17,301,DisplayFFT[0][i],DisplayFFT[1][i]);
//TFT操作结束，释放TFT资源的占用
OSSemPost(UseTFTSem);
}
OSTimeDlyHMSM(0, 0, 0, 10);
}
}
void Task_StatusBar(void *p_arg)
{
INT8U err;
/*
U32 i;
U32 x,y;
*/
U8 h=0,m=0,s=0;
FontStyle_Typedef StatusBarFontStyle;
StatusBarFontStyle.FontBackgroundColor=BACKGROUND_COLOR;
(void) p_arg;
OSStatInit();
while(1)
{
s++;
if(s==60)
{
s=0;
m++;
if(m==60)
{
m=0;
h++;
if(h==24)
h=0;
}
}
StatusBarFontStyle.FontColor=FONT_CYAN;
StatusBarFontStyle.pFontSize=&Font6x8;
//TFT操作，等待其他任务释放资源
///*
OSSemPend(UseTFTSem,0,&err);
//-------------------------------------------------------------//
TFT_PutString(&StatusBarFontStyle, 0, 0, " : : ");
TFT_PutChar(&StatusBarFontStyle, 0,0,0x30+h/10);
TFT_PutChar(&StatusBarFontStyle, 6,0,0x30+h%10);
TFT_PutChar(&StatusBarFontStyle, 18,0,0x30+m/10);
TFT_PutChar(&StatusBarFontStyle, 24,0,0x30+m%10);
TFT_PutChar(&StatusBarFontStyle, 36,0,0x30+s/10);
TFT_PutChar(&StatusBarFontStyle, 42,0,0x30+s%10);
TFT_PutString(&StatusBarFontStyle, 0, 8, "2014-05-08");
StatusBarFontStyle.pFontSize=&Font8x16;
TFT_PutString(&StatusBarFontStyle, 180, 0, "CPU: %");
TFT_PutChar(&StatusBarFontStyle, 212,0,0x30+OSCPUUsage/10);
TFT_PutChar(&StatusBarFontStyle, 220,0,0x30+OSCPUUsage%10);
StatusBarFontStyle.FontColor=FONT_BLUE;
TFT_PutString(&StatusBarFontStyle, 68, 0, "MusicSpectrum");
TFT_DrawHLine(0, 16, 239, TFT_YELLOW);
//------------------------------------------------------------//
//TFT操作结束，释放TFT资源的占用
OSSemPost(UseTFTSem);
//*/
OSTimeDlyHMSM(0, 0, 1, 0);
}
}
void Task_Init(void)
{
UseTFTSem=OSSemCreate(1);
OSTaskCreate(Task_MusicSpectrum,(void *)0,(OS_STK *)&Task_MusicSpectrumStk[TASK_MUSIC_SPECTRUM_STK_SIZE - 1],TASK_MUSIC_SPECTRUM_PRIO);
OSTaskCreate(Task_StatusBar,(void *)0,(OS_STK *)&Task_StatusBarStk[TASK_STATUS_BAR_STK_SIZE - 1],TASK_STATUS_BAR_PRIO);
}

复制代码

main.c

/**********************************************************
* | | / / |----| /--------------------
* | /| / / |---| / @沐雨迎风工作室
* | / | | | | / Data:2014-5-5
* | | | | | / Project:STM32
* ----------------------/ File:main.c
**********************************************************
Modification History:
versions Date Name Comment
--- -------- -------- -----------
1 2014/5/5 Zhan Lei New
*/
/*------------Include file---------------*/
#include "Global.h"
#include
/*------------Typedef---------------*/
/*------------Macro definition---------------*/
#define PI2 6.28318530717959
/*------------Define variables---------------*/
U16 dutyRatio=300;
/*------------Define functions---------------*/
void TIM3_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
//TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
TIM_DeInit(TIM3);
TIM_TimeBaseStructure.TIM_Prescaler=0;
TIM_TimeBaseStructure.TIM_Period=600;
TIM_TimeBaseStructure.TIM_ClockDivision=TIM_CKD_DIV1;
TIM_TimeBaseStructure.TIM_CounterMode=TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3,&TIM_TimeBaseStructure);
TFT_SetBackLED(dutyRatio);
TIM_Cmd(TIM3,ENABLE);
}
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
/* Configure one bit for preemption priority */
#if defined (VECT_TAB_RAM)
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#elif defined(VECT_TAB_FLASH_IAP)
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x2000);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
/* Configure the NVIC Preemption Priority Bits */
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_Init(&NVIC_InitStructure);
}
int main(void)
{
CPU_IntDis();
NVIC_Configuration();
TIM3_Configuration();
ADC_UserInit();
Font_Init();
TFT_Init();
RTC_Init();
OSInit();
Task_Init();
OSTimeSet(0);
OSStart();
while(1);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d
", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif

复制代码

`

11

评分

参与人数 1	+5	积分 +10	收起理由
A670521546	+ 5	+ 10	您的帖子很精彩,期待您分享的下一个帖子!.

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2014-5-9 20:57:00　　评论 淘帖0 举报

0 期待分享下你的过程对比下AVR和STM32做这个有哪些不同和困难

2014-5-9 22:40:45 评论举报 1^# vvg

0 你好，能不能给我发一份源码，万分感谢。wuyaju55@163.com

2014-6-4 20:15:11 评论举报 2^# xunzhaoxusanduo

0 真是太强悍了，厉害

2014-7-22 09:15:28 评论举报 3^# 徐彭飞

0 感谢楼主分享----------

2014-7-25 17:41:35 评论举报 4^# 李萍

0 你好能给我一份你的完整的设计文件吗这个东西太吸引我了我也想做一个你就帮帮我吧谢谢 1187288998@qq.com

2014-7-28 20:57:58 评论举报 5^# FGTY123

0 你好，可以发一份完整的资料给我吗？我也想做一个玩玩，谢谢！chenzhuiori@163.com

2014-8-1 09:04:56 评论举报 6^# 陈柱

0 谢谢楼主分享！

2014-8-5 14:02:14 评论举报 7^# jing787301029

0 好东西，留着先{:3:}{:3:}

2014-9-6 00:13:16 评论举报 8^# 王靖

0 我刚好做了一个功放，正需要这个。楼主做的非常优秀啊，能否发一份资料给我，感激不尽啊

2014-9-12 15:21:33 评论举报 9^# _凌云木

0 _凌云木发表于 2014-9-12 15:21 我刚好做了一个功放，正需要这个。楼主做的非常优秀啊，能否发一份资料给我，感激不尽啊 ... 邮箱：602298862@qq.com

2014-9-12 17:04:32 评论举报 10^# _凌云木

0 辛苦楼主编写真么多代码！！！！！！！1

2014-9-12 18:08:40 评论举报 11^# 秋天枫叶林

0 楼主做的非常很好啊，能否发一份资料给我啊 2814806476@qq.com

2015-1-7 11:21:13 评论举报 12^# 2814806476

0 以前逛的时候看到牛人的毕业设计就是做音频显示的，直接用LED焊的万用板，就觉的巨牛。

2015-1-7 23:38:38 评论举报 13^# yjl828

0 最近正准备学习stm32.。。

2015-1-15 09:22:10 评论举报 14^# 木仔潴

0 屌啊！！！！！！！！！！！！！！！

2015-5-7 13:12:27 评论举报 15^# 成语

0 楼主，您好，我刚刚学习stm32，能发给我一份源码吗？我要好好的研究一下，拜托了，2110309749@qq.com

2015-9-12 19:12:59 评论举报 16^# 金鹏

0 楼主，您好，我最近在做一个小项目，可不可以发一份代码和资料给我，万分感谢 973767524@qq.com

2016-1-19 11:39:56 评论举报 17^# 岳月月

0 楼主能发我一份源代码和资料吗，感谢楼主了。994699122@qq.com

2016-4-19 15:17:35 评论举报 18^# hearder

0 不错，下载了

2016-4-21 10:55:57 评论举报 19^# 王天

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