void plotPoint(void){
ST7735_PlotPoint(temperature); // Measured temperature
if((j&(N-1))==0){ // fs sampling, fs/N samples plotted per second
ST7735_PlotNextErase(); // overwrites N points on same line
}
j++; // counts the number of samples
}
int main(void){
char* lab9greeting = "Welcome to Lab 9!";
int temp;
// int Temperature = 100;
// DisableInterrupts();
// PLL_Init(Bus80MHz);
// //ST7735_InitR(INITR_REDTAB);
// Output_Init(); // UART0 only used for debugging
// ST7735_Output_Init();
// ADC0_InitSWTriggerSeq3_Ch9(); //initialize the ADC
// Timer0A_Init20HzInt(); //initialize the timer
// ST7735_DrawString(0,0, lab9greeting, ST7735_WHITE);
// EnableInterrupts();
PLL_Init(Bus80MHz); // 80 MHz
SYSCTL_RCGCGPIO_R |= 0x20; // activate port F
ADC0_InitSWTriggerSeq3_Ch9(); // allow time to finish activating
Timer0A_Init20HzInt(); // set up Timer0A for 100 Hz interrupts
GPIO_PORTF_DIR_R |= 0x06; // make PF2, PF1 out (built-in LED)
GPIO_PORTF_AFSEL_R &= ~0x06; // disable alt funct on PF2, PF1
GPIO_PORTF_DEN_R |= 0x06; // enable digital I/O on PF2, PF1
// configure PF2 as GPIO
GPIO_PORTF_PCTL_R = (GPIO_PORTF_PCTL_R&0xFFFFF00F)+0x00000000;
GPIO_PORTF_AMSEL_R = 0; // disable analog functionality on PF
PF2 = 0; // turn off LED
ST7735_Output_Init();
ST7735_DrawString(0,0, lab9greeting, ST7735_WHITE);
//Init_Plot();
//ST7735_SetCursor(0,0); ST7735_OutString("Lab 9");
ST7735_PlotClear(1000,4000); // range from 0 to 4095
ST7735_SetCursor(0,1); ST7735_OutString("N=");
ST7735_SetCursor(0,2); ST7735_OutString("T="); //ST7735_DecOut2(2500);
ST7735_OutString(" C");
EnableInterrupts();
while(1){
ST7735_SetCursor(3,1); ST7735_OutUDec(ADCvalue); // 0 to 4095
if(refresh){
refresh = 0;
samples++;
ST7735_PlotPoint(ADCvalue); // Measured temperature
if((samples&(N-1))==0){ // fs sampling, fs/N samples plotted per second
ST7735_PlotNextErase(); // overwrites N points on same line
}
if((samples%fs)==0){ // fs sampling, 1 Hz display of numerical data
//do conversion here, set it equal to temp.
temp = get_temp(ADCvalue);
ST7735_SetCursor(3,1); ST7735_OutUDec(ADCvalue); // 0 to 4095
ST7735_SetCursor(3,2);ST7735_DecOut2(temp); // 0.01 C
}
}
}
}
// "Embedded Systems: Real Time Interfacing to ARM Cortex M Microcontrollers",
// ISBN: 978-1463590154, Jonathan Valvano, copyright (c) 2014, Volume 2, Program 11.3
int main3(void){
UINT8 IsDHCP = 0;
_NetCfgIpV4Args_t ipV4;
SlSockAddrIn_t Addr, LocalAddr;
UINT16 AddrSize = 0;
INT16 SockID = 0;
INT16 Status = 1; // ok
UINT32 data;
unsigned char len = sizeof(_NetCfgIpV4Args_t);
initClk(); // PLL 50 MHz, ADC needs PPL active 16
ST7735_InitR(INITR_REDTAB); // Initialize 17
ST7735_OutString("Internet of Things\n"); // 18
ST7735_OutString("Embedded Systems\n"); // 19
ST7735_OutString("Vol. 2, Valvano"); // 20
ST7735_PlotClear(0,4095); // range from 0 to 4095 21
sl_Start(0, 0, 0); // Initializing the CC3100 device 22
WlanConnect(); // connect to AP 23
sl_NetCfgGet(SL_IPV4_STA_P2P_CL_GET_INFO,&IsDHCP,&len, // 24
(unsigned char *)&ipV4); // 25
LocalAddr.sin_family = SL_AF_INET; // 26
LocalAddr.sin_port = sl_Htons((UINT16)PORT_NUM); // 27
LocalAddr.sin_addr.s_addr = 0; // 28
AddrSize = sizeof(SlSockAddrIn_t); // 29
while(1){
SockID = sl_Socket(SL_AF_INET,SL_SOCK_DGRAM, 0); // 31
Status = sl_Bind(SockID, (SlSockAddr_t *)&LocalAddr, // 32
AddrSize); // 33
Status = sl_RecvFrom(SockID, uBuf, BUF_SIZE, 0, // 34
(SlSockAddr_t *)&Addr, (SlSocklen_t*)&AddrSize );// 35
if((uBuf[0]==ATYPE)&&(uBuf[1]== '=')){ // 36
int i,bOk; uint32_t place; // 37
data = 0; bOk = 1; // 38
i=4; // ignore possible negative sign 39
for(place = 1000; place; place = place/10){ // 40
if((uBuf[i]&0xF0)==0x30){ // ignore spaces 41
data += place*(uBuf[i]-0x30); // 42
}else{ // 43
if((uBuf[i]&0xF0)!= ' '){ // 44
bOk = 0; // 45
} // 46
} // 47
i++; // 48
} // 49
if(bOk){ // 50
ST7735_PlotLine(data); // 51
ST7735_PlotNextErase(); // 51
}
}
}
}
void ST7735_UpdateTemperatureGraph(uint32_t numSamples, uint16_t adcValue)
{
uint16_t temperature = getTemp(adcValue);
// DEBUG
// Magnify the plot to see the noise distribution better
// ST7735_PlotPoint((temperature - 2200)*15);
ST7735_PlotPoint(temperature); // Measured temperature
if((numSamples&(N-1))==0){ // fs sampling, fs/N samples plotted per second
ST7735_PlotNextErase(); // overwrites N points on same line
}
if((numSamples%FS)==0){ // fs sampling, 1 Hz display of numerical data
ST7735_SetCursor(3,1);
ST7735_OutUDec(adcValue); // 0 to 4095
ST7735_OutString(" "); // clear previous number
ST7735_SetCursor(3,2);
ST7735_sDecOut2(temperature); // 0.01 C
}
}
int main(void){
UINT8 IsDHCP = 0;
_NetCfgIpV4Args_t ipV4;
SlSockAddrIn_t Addr;
SlSockAddrIn_t LocalAddr;
UINT16 AddrSize = 0;
INT16 SockID = 0;
INT16 Status = 1; // ok
UINT32 data;
unsigned char len = sizeof(_NetCfgIpV4Args_t);
stopWDT(); // Stop WDT
initClk(); // PLL 50 MHz, ADC needs PPL active
Board_Init(); // initialize LaunchPad I/O
ConfigureUART(); // Initialize the UART.
UARTprintf("Section 11.4 IoT example, Volume 2 Real-time interfacing\n");
UARTprintf("This node is configured to receive UDP packets\n");
UARTprintf("This node should be at IP: %d.%d.%d.%d Port: %d\n\n",
SL_IPV4_BYTE(IP_ADDR,3), SL_IPV4_BYTE(IP_ADDR,2),
SL_IPV4_BYTE(IP_ADDR,1), SL_IPV4_BYTE(IP_ADDR,0),PORT_NUM);
ST7735_InitR(INITR_REDTAB);
ST7735_OutString("Internet of Things\n");
ST7735_OutString("Embedded Systems\n");
ST7735_OutString("Vol. 2, Valvano");
ST7735_PlotClear(0,4095); // range from 0 to 4095
while(1){
sl_Start(0, 0, 0); /* Initializing the CC3100 device */
/* Connecting to WLAN AP - Set with static parameters defined at the top
After this call we will be connected and have IP address */
WlanConnect(); // connect to AP
/* Read the IP parameter */
sl_NetCfgGet(SL_IPV4_STA_P2P_CL_GET_INFO,&IsDHCP,&len,(unsigned char *)&ipV4);
UARTprintf("This node is at IP: %d.%d.%d.%d\n", SL_IPV4_BYTE(ipV4.ipV4,3), SL_IPV4_BYTE(ipV4.ipV4,2), SL_IPV4_BYTE(ipV4.ipV4,1), SL_IPV4_BYTE(ipV4.ipV4,0));
while(Status > 0){
UARTprintf("\nReceiving a UDP packet ...");
LocalAddr.sin_family = SL_AF_INET;
LocalAddr.sin_port = sl_Htons((UINT16)PORT_NUM);
LocalAddr.sin_addr.s_addr = 0;
AddrSize = sizeof(SlSockAddrIn_t);
SockID = sl_Socket(SL_AF_INET,SL_SOCK_DGRAM, 0);
if( SockID < 0 ){
UARTprintf("SockIDerror\n");
Status = -1; // error
}else{
Status = sl_Bind(SockID, (SlSockAddr_t *)&LocalAddr, AddrSize);
if( Status < 0 ){
sl_Close(SockID);
UARTprintf("Sock Bind error\n");
}else{
Status = sl_RecvFrom(SockID, uBuf, BUF_SIZE, 0,
(SlSockAddr_t *)&Addr, (SlSocklen_t*)&AddrSize );
if( Status <= 0 ){
sl_Close(SockID);
UARTprintf("Receive error %d ",Status);
}else{
LED_Toggle();
sl_Close(SockID);
UARTprintf("ok %s ",uBuf);
if((uBuf[0]==ATYPE)&&(uBuf[1]== '=')){ int i,bOk; uint32_t place;
data = 0; bOk = 1;
i=4; // ignore possible negative sign
for(place = 1000; place; place = place/10){
if((uBuf[i]&0xF0)==0x30){ // ignore spaces
data += place*(uBuf[i]-0x30);
}else{
if((uBuf[i]&0xF0)!= ' '){
bOk = 0;
}
}
i++;
}
if(bOk){
ST7735_PlotLine(data);
ST7735_PlotNextErase();
}
}
}
}
}
ROM_SysCtlDelay(ROM_SysCtlClockGet() / 25); // 120ms
}
}
}
