//Show char
//x:0~63
//y:0~31
//size:select the font 16/12
void OLED_ShowChar(uint8_t x, uint8_t y, uint8_t chr, uint8_t size, uint8_t mode)
{
uint8_t temp,t,t1;
uint8_t y0=y;
chr=chr-' ';//get the offset
for(t=0;t<size;t++)
{
if(size == 12) temp = asc2_1206[chr][t]; //font:1206
else if(size == 16) temp = asc2_1608[chr][t]; //font:1608
else temp = asc2_3208[chr][t]; //font:3208
for(t1=0; t1<8; t1++)
{
if(temp&0x80)OLED_DrawPoint(x,y,mode);
else OLED_DrawPoint(x,y,!mode);
temp<<=1;
y++;
if((y-y0) == size)
{
y=y0;
x++;
break;
}
}
}
}
//Show image
//x:0~63
//y:0~31
void OLED_ShowImg(uint8_t x, uint8_t y, uint8_t chr, uint8_t mode)
{
uint8_t temp,t,t1;
uint8_t y0=y;
for(t=0;t<32;t++)
{
temp = image[chr][t];
for(t1=0; t1<8; t1++)
{
if(temp&0x80)OLED_DrawPoint(x,y,mode);
else OLED_DrawPoint(x,y,!mode);
temp<<=1;
y++;
if((y-y0) == 32)
{
y=y0;
x++;
break;
}
}
}
}
/**
* @brief Show a char withgiven size
@param x,y:Position
chr:Char
size:Char size in y 16,12,8 are selectable
mode:Draw(1) or unDraw(0)
@retval None
*/
void OLED_ShowChar(unsigned char x, unsigned char y, unsigned char chr, unsigned char size, unsigned char mode)
{
unsigned char temp, t, t1, m;
unsigned char y0 = y;
if (chr == '\n' || chr == '\r') return;
chr = chr - ' ';
if (size == 8)
{
m = 5;
for (t = 0; t < 5; t++)
{
temp = oled_asc2_0705[chr][t];
for (t1 = 0; t1 < 8; t1++)
{
if (temp & 0x01)OLED_DrawPoint(x, y, mode);
else OLED_DrawPoint(x, y, !mode);
temp >>= 1;
y++;
if ((y - y0) == size)
{
y = y0;
x++;
break;
}
}
}
}
void oled_cmps_mode()
{
uint8_t x, y;
y = 15;
for(x=23; x<40; ++x) OLED_DrawPoint(x, y, 1);
x = 31;
for(y=8; y<24; ++y) OLED_DrawPoint(x, y, 1);
OLED_Refresh_Gram();
}
//add by ll
void update_battery(uint8_t level)
{
uint8_t i, j;
uint16_t length = 0;
i = j = 0;
for(i=48; i<=60; ++i) OLED_DrawPoint(i, j, 1);
i -= 1;
for(j=0; j<=3; ++j) OLED_DrawPoint(i, j, 1);
j -= 1;
for(; i<=63; ++i) OLED_DrawPoint(i, j, 1);
i -= 1;
for(; j<=6; ++j) OLED_DrawPoint(i, j, 1);
j -= 1;
for(; i>=60; --i) OLED_DrawPoint(i, j, 1);
i += 1;
for(; j<=9; ++j) OLED_DrawPoint(i, j, 1);
j -= 1;
for(; i>=48; --i) OLED_DrawPoint(i, j, 1);
i += 1;
for(; j>=1; --j) OLED_DrawPoint(i, j, 1);
//get the level of battery
//length = 49 + (get_battery_value() - 20) / 7;
// xprintf("length = %d\r\n",length);
for(i=49; i<=length; i++)
for(j=0; j<=9; j++)
OLED_DrawPoint(i, j, 1);
}
/**
* @brief Draw a horizonal line
@param y(from 0 to 127): Public Y position
x1(from 0 to 63): Start of line
x2(from 0 to 63): End of line
t:Draw(1) or unDraw(0)
x1,x2 satisfies x1<x2
@retval None
*/
void OLED_DrawHorizonalLine(unsigned char y, unsigned char x1, unsigned char x2, unsigned char t)
{
for (; x1 < x2 + 1; x1++)
{
OLED_DrawPoint(x1, y, t);
}
}
/**
* @brief Draw a vertical line
@param x(from 0 to 127): Public X position
y1(from 0 to 63): Start of line
y2(from 0 to 63): End of line
t:Draw(1) or unDraw(0)
y1,y2 satisfies y1<y2
@retval None
*/
void OLED_DrawVerticalLine(unsigned char x, unsigned char y1, unsigned char y2, unsigned char t)
{
for (; y1 < y2 + 1; y1++)
{
OLED_DrawPoint(x, y1, t);
}
}
//x1,y1,x2,y2 填充区域的对角坐标
//确保x1<=x2;y1<=y2 0<=x1<=127 0<=y1<=63
//dot:0,清空;1,填充
void OLED_Fill(u8 x1,u8 y1,u8 x2,u8 y2,u8 dot)
{
u8 x,y;
for(x=x1;x<=x2;x++)
{
for(y=y1;y<=y2;y++)OLED_DrawPoint(x,y,dot);
}
OLED_Refresh_Gram();//更新显示
}
//x1,y1,x2,y2
//x1<=x2;y1<=y2 0<=x1<=63 0<=y1<=31
//dot:0,clear;1,fill
void OLED_Fill(uint8_t x1,uint8_t y1,uint8_t x2,uint8_t y2,uint8_t dot)
{
uint8_t x,y;
for(x=x1;x<=x2;x++)
{
for(y=y1;y<=y2;y++)OLED_DrawPoint(x,y,dot);
}
OLED_Refresh_Gram();
}
void OLED_line (int x1, int y1, int x2, int y2, unsigned char mode) //Draws a line between two points on the display - по Ѕрезенхейму
{
signed int dy = 0;
signed int dx = 0;
signed int stepx = 0;
signed int stepy = 0;
signed int fraction = 0;
// if (x1>lcdWidth() || x2>lcdWidth() || y1>lcdHeight() || y2>lcdHeight()) return;
dy = y2 - y1;
dx = x2 - x1;
if (dy < 0)
{
dy = -dy;
stepy = -1;
}
else stepy = 1;
if (dx < 0)
{
dx = -dx;
stepx = -1;
}
else stepx = 1;
dy <<= 1;
dx <<= 1;
OLED_DrawPoint(x1,y1,mode);
if (dx > dy)
{
fraction = dy - (dx >> 1);
while (x1 != x2)
{
if (fraction >= 0)
{
y1 += stepy;
fraction -= dx;
}
x1 += stepx;
fraction += dy;
OLED_DrawPoint(x1,y1,mode);
}
}
void OLED_Equalizer_128(u8 *data)
{
int x,y;
for (x=0;x<128;x++)
{
//printf("0x%x\n\r", data[x]);
for (y=0;y<=data[x];y++)
OLED_DrawPoint(128-x,y,1);
}
OLED_Refresh_Gram();
}
/******************************************************
Function: void OLED_GT20Photo( u8 x, u8 y, u8 len, u8 wide, u8 *pic, u8 mode)
Description:从任意点开始画指点大小的图片
Calls： void OLED_DrawPoint(u8 x,u8 y,u8 t) //任意坐标画点
Input: u8 x，u8 y：起始点。
u8 len：长，x轴方向
u8 wide：宽，y轴方向
u8 *pic：图片数组
u8 mode：字符显示区域为0或1
******************************************************/
void OLED_GT20Photo( u8 x, u8 y, u8 len, u8 wide, u8 *pic, u8 mode)
{
u8 x_pos,y_pos,temp;
u8 i,j;
x_pos = x;
y_pos = y;
for(j=0; j<len; j++)
{
for(i=0;i<wide;i++)
{
if(i%8==0)
{
temp = *(pic+(i/8)*len+j);
}
if(temp&0x01) OLED_DrawPoint( x_pos+j,y_pos+i,mode);
else OLED_DrawPoint( x_pos+j,y_pos+i,!mode); //某“点”写0，或写1
temp >>=1;
}
}
}
void oled_drawline(int16_t angle)
{
int16_t x1, y1;
static int16_t x2=0, y2=0;
float rad = angle * 3.14 / 180;
x1 = 31;
y1 = 15;
OLED_DrawPoint(x2, y2, 0);
// DDALine(x1, y1, x2, y2, 0);
// dda_line(x1, y1, x2, y2, 0);
x2 = (int16_t)(cos(rad) * 15) + x1;
y2 = y1 - (int16_t)(sin(rad) * 15);
// xprintf("%d, %d, %d\r\n", angle, x2, y2);
OLED_DrawPoint(x2, y2, 1);
// DDALine(x1, y1, x2, y2, 1);
// dda_line(x1, y1, x2, y2, 1);
}
/////////////////////////////////////////////////////////////////////////////////
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白显示;1,正常显示
//size:选择字体 16/12
void OLED_ShowChar(uint8_t x,uint8_t y,uint8_t chr,uint8_t size,uint8_t mode)
{
uint8_t temp,t,t1;
uint8_t y0=y;
chr=chr-' ';//得到偏移后的值 // offset position in table
for(t=0;t<size;t++)
{
if(size==12)
{
temp=oled_asc2_1206[chr][t]; //调用1206字体
}
else
{
temp=oled_asc2_1608[chr][t]; //调用1608字体
}
for(t1=0;t1<8;t1++)
{
if(temp&0x80)
{
OLED_DrawPoint(x,y,mode);
}
else
{
OLED_DrawPoint(x,y,!mode);
}
temp<<=1;
y++;
if((y-y0)==size)
{
y=y0;
x++;
break;
}
}
}
}
//在指定位置显示一个字符,包括部分字符
//x:0~127
//y:0~63
//mode:0,反白显示;1,正常显示
//size:选择字体 16/12
void OLED_ShowChar(u8 x,u8 y,u8 chr,u8 size,u8 mode)
{
u8 temp,t,t1;
u8 y0=y;
chr=chr-' ';//得到偏移后的值
for(t=0;t<size;t++)
{
if(size==12)temp=asc2_1206[chr][t]; //调用1206字体
else temp=asc2_1608[chr][t]; //调用1608字体
for(t1=0;t1<8;t1++)
{
if(temp&0x80)OLED_DrawPoint(x,y,mode);
else OLED_DrawPoint(x,y,!mode);
temp<<=1;
y++;
if((y-y0)==size)
{
y=y0;
x++;
break;
}
}
}
}
void DDALine(int x0,int y0,int x1,int y1,int color)
{
int x;
float dx, dy, y, k;
dx = x1 - x0;
dy = y1 - y0;
k = dy / dx;
y = y0;
for (x=x0; x<x1; x++)
{
OLED_DrawPoint(x, (int)(y+0.5), color);
y = y + k;
}
}
void dda_line(int x0,int y0,int x1,int y1,int color)
{
float e, dx, dy;
dx = x1 - x0;
dy = y1 - y0;
e = dy - dx/2;
while(x0 <= x1)
{
OLED_DrawPoint(x0, y0, color);
if(e > 0)
{
y0 += 1;
e -= dx;
}
x0 += 1;
e += dy;
}
}
void OLED_drawbitmap(unsigned char x, unsigned char y, const unsigned char bitmap[], unsigned char w,unsigned char h, unsigned char mode)
{
unsigned char i,j;
for ( j = 0; j < h; j++) {
for (i = 0; i < w; i++) {
//if (*(bitmap + i + (j / 8) * w) & TO_BIT(j%8)) {
if ((bitmap[i + (j / 8) * w]) & (0x1 << (j%8))) {
OLED_DrawPoint(x + i, y + j, mode);
}
}
}
}
int main(void)
{
short real[N], image[N];
float datacpx[N];
int outLED[N];
int i,j,window;
int timeL;
print("FFT start\n");
Xil_Out32(OLED_BASE_ADDR,0xff);
OLED_Init();
OLED_ShowString(0,0, "Hello FFT!");
OLED_Refresh_Gram();
//srand(time(0));
while(1){
init_timer(timer_ctrl, timer_counter_l, timer_counter_h);
start_timer(timer_ctrl);
OLED_Clear();
for (i = 0; i < N; i++) outLED[i] = 0;
for(window = 0; window<WINDOW; ++window)
{
//Generate input data
for (i = 0; i < N; i++)
{
#ifdef FIX_POINT
real[i] = ((rand()%128-64)/128.0f)*(1<<14);
image[i] = 0;
#else
//datacpx[2*i]=(cos(2 * M_PI * 4 * i / N));
datacpx[2*i]=(rand()%128-64)/128.0f;
datacpx[2*i+1] = 0;
#endif
}
timeL = *timer_counter_l;
//FFT
#ifdef FIX_POINT
fix_fft(real, image, POW_N);
#else
fft(datacpx,N,1);
#endif
printf("FFT: %d us\n",(*timer_counter_l - timeL)/333);
timeL = *timer_counter_l;
//Conj
for (i = 0; i < N; i++)
{
#ifdef FIX_POINT
//printf("real[%d]= %d image[%d]= %d\n",i,real[i],i,image[i]);
int conj_pdt_out =sqrt((real[i]*real[i]) + (image[i]*image[i]));
#else
int conj_pdt_out =sqrt((datacpx[2*i]*datacpx[2*i]) + (datacpx[2*i+1]*datacpx[2*i+1]));
#endif
//conj_pdt_out=conj_pdt_out/2;
outLED[i]+=conj_pdt_out;
}
printf("Conj: %d us\n",(*timer_counter_l - timeL)/333);
}
timeL = *timer_counter_l;
//Averaging
for(i=0;i<N;++i)
{
#ifdef FIX_POINT
outLED[i]=outLED[i]>>10;
#else
outLED[i]=outLED[i]/8;
#endif
}
printf("Averaging: %d us\n",(*timer_counter_l - timeL)/333);
stop_timer(timer_ctrl);
//Display
for(i=0;i<N;++i)
{
//printf("real[%d]= %d image[%d]= %d\n",i,real[i],i,image[i]);
for(j=0; j< outLED[i]; ++j)
OLED_DrawPoint(i,63-j,1);
}
OLED_Refresh_Gram();
}
return 0;
}