Mauro Suffritti
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Dependencies: mbed BufferedSerial
Revision 0:07bc252ecb12, committed 2021-05-19
- Comitter:
- suffrim
- Date:
- Wed May 19 09:32:20 2021 +0000
- Commit message:
- uu
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BufferedSerial.lib Wed May 19 09:32:20 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/sam_grove/code/BufferedSerial/#7e5e866edd3d
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed May 19 09:32:20 2021 +0000
@@ -0,0 +1,97 @@
+#include "mbed.h"
+#include "BufferedSerial.h"
+
+
+#define RECEIVE_BUFF_LENGT 120
+#define MAXIMUM_BUFFER_SIZE 32
+
+
+
+PwmOut buzzer(p21);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut pin22(p22);
+DigitalOut pin23(p23);
+DigitalOut pin24(p24);
+
+BufferedSerial pc(USBTX, USBRX);
+
+float frequency = 100;
+float delay = 0.1;
+float tempo_trascorso_ultimo_pwm_refresh = 0;
+float tempo_ultimo_pwm_refresh = 0;
+float Freq_Period_2 = 0;
+float Freq_Period_3 = 0;
+
+int new_data = 0;
+
+Ticker Task_Controllo_freq;
+Ticker Task_Freq_Gen_2;
+Ticker Task_Freq_Gen_3;
+Timer tempo;
+
+void flip_2()
+{
+ pin22 = !pin22;
+}
+
+void flip_3()
+{
+ pin23 = !pin23;
+}
+
+void Gestione_frequenza()
+{
+ tempo_trascorso_ultimo_pwm_refresh = tempo.read() - tempo_ultimo_pwm_refresh;
+ if(tempo_trascorso_ultimo_pwm_refresh > delay) {
+ buzzer.period(1.0/(frequency)); // set PWM period
+ buzzer=0.5; // set duty cycle
+ delay = 1.0 /(frequency);
+ tempo_trascorso_ultimo_pwm_refresh = tempo.read();
+ Freq_Period_2 = 1.0/(2*frequency);
+ Freq_Period_3 = 1.0/(1.8*frequency);
+ Task_Freq_Gen_2.attach(flip_2,Freq_Period_2);
+ Task_Freq_Gen_3.attach(flip_3,Freq_Period_3);
+ frequency = frequency + 1000;
+ if(frequency > 20000)
+ frequency = 1000;
+ }
+
+}
+
+
+
+
+int main()
+{
+ uint32_t num;
+ // Application buffer to receive the data
+ char buf[MAXIMUM_BUFFER_SIZE] = {0};
+
+ pc.baud(115200);
+ pc.format(8,Serial::None,2);
+// pc.attach(&pc_recv, Serial::RxIrq);
+
+
+ frequency = 1000;
+ Task_Controllo_freq.attach(&Gestione_frequenza, 0.05);
+ tempo.start();
+ tempo_ultimo_pwm_refresh = tempo.read();
+
+ while(1) {
+// led1=!led1;
+// pin24=!pin24;
+// wait(1.0);
+
+ //if (num = pc.read(buf, sizeof(buf)))
+ if(0)
+ {
+ // Toggle the LED.
+ led2 = !led2;
+
+ // Echo the input back to the terminal.
+ pc.write(buf, num);
+ }
+
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed May 19 09:32:20 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file