/**
* @brief Displays a keypad on touchscreen
* @param none
* @retval none
*/
void Make_Touch_Pad(void) {
int t_y = 7;
int t_y1;
int ft = 2;
int t_x = 4;
int lines = 7;
int column = 20;
int pitch;
int ys; //terminal is organised in lines 1..30/15, depending on
//selcted font -> to calculate pixelpostion, decrement line and multiplay with font height
int yh;
int xw;
int xs;
int x;
int y;
TFT_Init();
TFT_cursor_off();
TFT_graphic_cls();
TFT_touch_area_clear();
//_-------------------------------------------------
//---- 2. Define the small blue terminal window ----
//--------------------------------------------------
TFT_set_font_color(YELLOW); // define terminal colors
t_y = 3;
ft = 2;
t_x = 4;
lines = 7;
column = 20;
TFT_set_window(ft, t_x, t_y, column, lines); // define the font (8x16), origin
//(5x8=40,7x16=112), width (20 character) and height (7 lines)
// note: origin is defined as column no.7 and line no.10 (not dots)
TFT_terminal_on(); // Terminal on
// ----------------------------------------------
//---- 3. Define a keypad with numbers 0..9 ----
//---------------------------------------------
TFT_touch_area_font_color(YELLOW, BLACK); // define color for touch font
TFT_touch_area_font(SWISS30B); // set font for touch area
TFT_touch_area_frame(20, 0); //set border no. 20
TFT_touch_area_color(WHITE, BLACK, BLUE, WHITE, BLACK, YELLOW); //set border colors normal and for selection
// using a constant for (touch)size and (touch)pitch makes it
//more easy to move the whole key group later
// XPIXEL=320 and YPIXEL=240
pitch = 2;
t_y1 = 5; // startline for button
ys = (t_y1 - 1) * ft * 8; //terminal is organised in lines 1..30/15, depending on
//selcted font -> to calculate pixelpostion, decrement line and multiplay with font height
yh = (YPIXEL - ys - 3 * pitch) / NUMBER_BUTTON_VERTICAL; // 4 button vertical
xw = yh; // width same as hight
xs = XPIXEL - (NUMBER_BUTTON_HORIZONTAL * xw + 2 * pitch); // 7 button in line
x = xs; // xs is left start of button
y = ys;
TFT_touch_area(x, y, x + xw, y + yh, '1', 0, "1"); // define a touchkey with number "1".
x += pitch + xw; //while release, touchmacro no. 20 will be executed
TFT_touch_area(x, y, x + xw, y + yh, '2', 0, "2");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '3', 0, "3");
x += pitch + xw; // empty place
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, 'r', 0, "r");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, 'd', 0, "d");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, 's', 0, "st");
// -- start 2nd row of buttons
x = xs;
y += pitch + yh;
TFT_touch_area(x, y, x + xw, y + yh, '4', 0, "4");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '5', 0, "5");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '6', 0, "6");
x += pitch + xw; // empty place
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '+', 0, "+");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '-', 0, "-");
// -- start 3rd row of buttons
x = xs;
y += pitch + yh;
TFT_touch_area(x, y, x + xw, y + yh, '7', 0, "7");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '8', 0, "8");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '9', 0, "9");
x += pitch + xw; // empty place
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '*', 0, "*");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '/', 0, "/");
// -- start 4th row of button
x = xs;
y += pitch + yh;
//TFT_touch_area( x,y,x+xw,y+yh, 0,0, "=" );
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, '0', 0, "0");
x += pitch + xw;
//TFT_touch_area( x, y, x+xw, y+yh, 0, 0, "" );
x += pitch + xw; // empty place
//x+=pitch+xw;
//TFT_touch_area( x, y, x+xw, y+yh, '=', 0, "=" );
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, 'e', 0, "e");
x += pitch + xw;
TFT_touch_area(x, y, x + xw, y + yh, 'c', 0, "c");
return;
}
int main(void) {
RCC_ClocksTypeDef RCC_Clocks;
/* default value with 440 Hz delta fi and Amplitude 1.0V*/
d_phi = D_PHI_440HZ;
b = AMPLITUDE_B_HIGH;
initCEP_Board();
initTimer_Dac();
msecs = 0;
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000);
TFT_cursor_off();
//Mark buffer as empty
buf1.isEmpty = 1;
buf2.isEmpty = 1;
bgbuf = &buf1;
isrbuf = &buf1;
TFT_cls();
TFT_puts("CEP4");
TFT_gotoxy(1, 2);
TFT_puts("Besnik & Burim Mulici");
TFT_gotoxy(1,5);
TFT_puts("msecs: ");
TFT_gotoxy(1,6);
TFT_puts("Interrupts: ");
TFT_gotoxy(1,7);
TFT_puts("delta_P: ");
TFT_gotoxy(1,8);
TFT_puts("Frequenz: 440");
TFT_gotoxy(1,9);
TFT_puts("Form: Sinus");
while (1) {
read_buttons();
//slow down display output
if(msecCountVar <= msecCounter) {
msecCountVar++;
} else {
msecCountVar = 0;
}
//Display output
if((output ==1) && (msecCountVar == msecCounter)){
ITM->PORT[11].u32 = 0;
TFT_gotoxy(1,5);
TFT_puts("msecs: ");
sprintf(msecbuf, "%d" , msecs);
TFT_puts(msecbuf);
TFT_gotoxy(1,6);
TFT_puts("Interrupts: ");
sprintf(interruptbuf, "%d", interruptCounter);
TFT_puts(interruptbuf);
TFT_gotoxy(1,7);
TFT_puts("delta_P: ");
sprintf(d_phi_buf, "%d", d_phi);
TFT_puts(d_phi_buf);
ITM->PORT[11].u32 = 1;
}
//Buffer empty? If yes fill it and Wait-LED off, else Wait-LED on
if(bgbuf->isEmpty){
resetLED(WAITING);
ITM->PORT[12].u32 = 0;
fill_Buf(bgbuf);
ITM->PORT[12].u32 = 1;
if(bgbuf == &buf1) { bgbuf = &buf2;}
else{ bgbuf = &buf1;}
} else {
setLED(WAITING);
}
}
}
void labor6(void) {
run = 1;
syncword_address =0;
spi_address = 0;
pwmVal = 0;
HMP3Decoder mp3dec;
bytesLeft = 0;
bytesTilSyncWord = 0;
decodeRetVal = 0;
errorCounter = 0;
idx_ISR = 0;
mainBuf_empty = 1;
interrupt_Counter = 0;
mseczaehlvar = 0;
RCC_ClocksTypeDef RCC_Clocks;
msec = 0;
int i = 0;
//Amplitude 1.0V (b_big)
amplitude = b_big;
spi_setup();
setup_TIM8_DAC_PWM();
mp3dec = MP3InitDecoder();
//SysTick end of count event each 10ms
RCC_GetClocksFreq(&RCC_Clocks);
SysTick_Config(RCC_Clocks.HCLK_Frequency / 1000);
TFT_cursor_off();
buf1.isEmpty = 1;
buf2.isEmpty = 1;
mp3OutBuffer = &buf1; //start with buf1
irsInBuffer = &buf1;
TFT_cls();
TFT_gotoxy(1,1);
TFT_puts("Frequenz: 5000");
while(B1 != 0 && B2 != 0) {}
do {
//Check Buttons
read_buttons();
//ausgabe
print_display();
//wenn der mainBuf leer ist, muss der durch readSPI mit mp3-daten gefuellt werden
if (mainBuf_empty) {
do {
//Shift bytes to the beginning
/**
* Bsp: mainBufSize = 10
* readBytes = 7 --> bytesLeft = 3
* for(){
* mainBuffer[0] = mainBuffer[(10-3)+0] idx[0] = idx[7]
* mainBuffer[1] = mainBuffer[(10-3)+1] idx[1] = ide[8] ...
*/
for(i = 0; i < bytesLeft; i++) { //die ungelesene bytes am anfang stellen
mainBuf[i] = mainBuf[(MAINBUF_SIZE - bytesLeft) + i];
}
//Reads size-bytes from current_SPI_Address and writes them into the given array ((mainBuffer + nBytesLeft))
//also nach diesem aufruf, ist der mainBuf voll und spiadresse muss verschoben werden
spiFlashMemRead(SPI_MEM_WORK, spi_address, (mainBuf + bytesLeft), MAINBUF_SIZE - bytesLeft);
//nach sync word in dem mainBuf suchen
bytesTilSyncWord = MP3FindSyncWord(mainBuf, MAINBUF_SIZE);
if (bytesTilSyncWord == 0) { //falls guelltige date gleich am anfang liegen
spi_address = spi_address + (MAINBUF_SIZE - bytesLeft);
} else if (bytesTilSyncWord < 0) {//fehler, kein sync word gefunden
run = 0;
} else if (bytesTilSyncWord > 0) {//falls skip word an der n-te adresse gefunden wurde, verschiebe ich die spiadresse um n, damit ich beim naechsten durchlauf vom flash nur die guelltige daten lese (also muell ueberspringen)
spi_address = (spi_address - bytesLeft )+ bytesTilSyncWord;
}
bytesLeft = 0; //MUSS DAS HIER NICHT AUSSERHALB DER WHILE ?? DAMIT DIE NBYTES NICHT VERLOREN GEHEN
} while(bytesTilSyncWord != 0 && run);
mainBuf_empty = 0; //mainBuf ist voll
}
if (run) { //wenn kein fehler
//wenn der mp3OutBuf voll ist ODER der MainBuf leer ist, dann warten (WAITING-LED) anschalten
if (!mp3OutBuffer->isEmpty || mainBuf_empty) {
setLED(WAITING_LED);
} else {
resetLED(WAITING_LED);
bytesLeft = MAINBUF_SIZE; //in nBytesLeft steht wieviele daten aus dem MainBuf noch in dem mp3OutBuf uebertragen werden muessen
ptrMainBuf = mainBuf; //mainBufPointer soll auf MainBuff zeigen, obwohl es bei der initialisierung schon gemacht wurde !!
/**
* para1: decoder instance
* para2: buffer aus dem die daten decodet werden sollen
* para3: (input) --> anzahl gueltige bytes, die gelesen werden sollen,
* (output)--> input - gelesene bytes, also die bytes die noch gelesen werden muessen
* para4: der buffer in dem geschrieben werden soll, der pointer wird geupdatet (bis wo der voll geschrieben wurde)
*/
//nach diesem aufruf ist der mp3OutBuf auf jeden fall voll
decodeRetVal = MP3Decode(mp3dec, &ptrMainBuf, &bytesLeft, mp3OutBuffer->data, 0); //decodeResult -->(0 means no error, < 0 means error)
mainBuf_empty = 1; //der mainBuf ist nicht komplett voll
if (decodeRetVal < 0) {
errorCounter++;
} else {
errorCounter = 0;
}
if (errorCounter > 2) { //fehler beim decode aufgetreten
run = 0;
} else {
mp3OutBuffer->isEmpty = 0; //der mp3OutBuffer wurde voll geschrieben, bereit fuer die ISR
if(mp3OutBuffer == &buf1) { //buffer ist voll, also wechseln
mp3OutBuffer = &buf2;
} else if (mp3OutBuffer == &buf2) {
mp3OutBuffer = &buf1;
}
}
}
}
} while (run);
MP3FreeDecoder(mp3dec);
}
