S5info_H14
app3 prob
Dependencies: mbed
Diff: main.cpp
- Revision:
- 1:cb05875a0960
- Parent:
- 0:6517bada7928
- Child:
- 2:c25ba89e3581
diff -r 6517bada7928 -r cb05875a0960 main.cpp
--- a/main.cpp Fri Feb 07 20:16:21 2014 +0000
+++ b/main.cpp Tue Feb 11 15:39:58 2014 +0000
@@ -1,81 +1,177 @@
#include "mbed.h"
+#include "rtos.h"
+#include <bitset>
+#include <string>
Serial pc(USBTX, USBRX);
-DigitalIn in(p29);
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+
+unsigned long tc_periods[7] = {0};
+unsigned long period = 0;
+bool type_bit = true;
+int synchrone = 0;
+
+string message = "";
+const unsigned long offset = 100;
+
+bitset<16> bits(string("0101010101111110"));
-bool trame[16] = {false, true, false, true, true, true, true, false, false, false, true, false, false, true, true, true};
-
-void ThatsTheSpirit() {
+void readTrame()
+{
+ if (synchrone < 7)
+ {
+ tc_periods[synchrone] = LPC_TIM2->CR1 / 2;
+ synchrone++;
+
+ if (synchrone == 7)
+ {
+ for (int i = 0; i < synchrone; i++)
+ {
+ period += tc_periods[i];
+ }
+
+ period = period/7;
+ }
+ }
+ else
+ {
+ unsigned int tc_count = LPC_TIM2->CR1;
+ if (tc_count > (period - offset) && tc_count < (period + offset))
+ {
+ if (type_bit)
+ {
+ led2 = 1;
+ led3 = 0;
+ }
+ else
+ {
+ led3 = 1;
+ led2 = 0;
+ }
+ }
+ else if (tc_count > (period*2 - offset) && tc_count < (period*2 + offset))
+ {
+ type_bit = !type_bit;
+ led4 = 1;
+ if (type_bit)
+ {
+ led2 = 1;
+ led3 = 0;
+ }
+ else
+ {
+ led3 = 1;
+ led2 = 0;
+ }
+ }
+
+ /*if (type_bit)
+ message += "1";
+ else
+ message += "0";*/
+ }
- pc.printf("Duree impulsion : %d microsecondes.\n\r", LPC_TIM2->CR1/(SystemCoreClock/1000000));
-
+ if (led1 == 0)
+ led1 = 1;
+ else
+ led1 = 0;
+
LPC_TIM2->TC = 0;
- LPC_TIM2->PC = 0;
- LPC_TIM2->PR = 0;
LPC_TIM2->IR = 0xFF;
}
-void SendMessage() {
-
- LPC_SC->PCONP |= (1 << 6); // Enable power on PWM1
- LPC_SC->PCLKSEL0 |= (3 << 12); // Run PWM1
-
- LPC_PINCON->PINSEL4 |= (1 << 2);
- LPC_PINCON->PINMODE3 |= (2 << 14) | (2 << 8);
-
- LPC_PWM1->MCR |= (0 << 8) | ( 0 << 7) | (0 << 6) | (1 << 1);
- LPC_PWM1->CTCR |= (0 << 0);
- LPC_PWM1->PCR |= (1 << 12) | (1 << 10) | (1 << 4) | (1 << 2);
-
- LPC_PWM1->MR0 = SystemCoreClock/8;
- LPC_PWM1->LER |= (0x6);
- LPC_PWM1->TCR |= (0x9);
-
- for (int a = 0; a < 16; a++) {
- if (trame[a]) {
- LPC_PWM1->MR1 = 0;
- LPC_PWM1->MR2 = SystemCoreClock/16;
- } else {
- LPC_PWM1->MR1 = SystemCoreClock/16;
- LPC_PWM1->MR2 = 0;
+void sendTrame(std::bitset<16> bit)
+{
+ for (int a = 15; a > 0; a--)
+ {
+ if (bit.test(a))
+ {
+ LPC_PWM1->MR1 = SystemCoreClock/2;
+ LPC_PWM1->MR2 = 1;
+ }
+ else
+ {
+ LPC_PWM1->MR1 = 1;
+ LPC_PWM1->MR2 = SystemCoreClock/2;
}
- pc.printf("trame: %d\n\r", trame[a]);
+ while(LPC_PWM1->IR != 0x01);
- wait(1);
+ LPC_PWM1->IR = 0xFF;
+ }
+
+ LPC_PWM1->TCR = 0x0;
+
+ pc.printf("%s\n", message.c_str());
+
+ for ( int i = 0; i < 8; i++)
+ {
+ pc.printf("%d : \t", tc_periods[i]);
}
+
+ pc.printf("\n");
+}
+
+void send(void const *args)
+{
+ sendTrame(bits);
+}
+
+void _send()
+{
+ if (led1 == 0)
+ led1 = 1;
+ else
+ led1 = 0;
}
-int main() {
-
- SendMessage();
-
- /*LPC_PINCON->PINSEL0 |= 0xF00;
- NVIC_SetVector(TIMER2_IRQn, uint32_t(ThatsTheSpirit));
-
- LPC_SC->PCONP |= (1 << 22);
- LPC_SC->PCLKSEL1 |= (1 << 12);
-
+void initialize()
+{
+ // Set system control
+ LPC_SC->PCONP |= (1 << 22) | (1 << 6); // Enable Timer2 et PWM
+ LPC_SC->PCLKSEL0 |= (1 << 12); // PClk PWM = CCLK
+ LPC_SC->PCLKSEL1 |= (1 << 12); // PClk Timer2 = CCLK
+
+ // Set pin connection
+ LPC_PINCON->PINSEL0 |= (3 << 10); // Pin 29 Capture
+ LPC_PINCON->PINSEL4 |= (1 << 2); // Pin 25 PWM
+
+ //Initialize Timer2 for capture
+
+ LPC_TIM2->TC = 0; // Initialize Time Counter
+ LPC_TIM2->PC = 0; // Initialize Prescale Counter
+ LPC_TIM2->PR = 0; // Initialize Prescale Register
+ LPC_TIM2->TCR |= (1 << 1); // Reset Timer Control Register
+ LPC_TIM2->IR = 0xFF; // Reset Interrupt Register
+ LPC_TIM2->CCR |= (1 << 5) | (1 << 4) | (1 << 3); // Initialize Capture Control Register
+ LPC_TIM2->CTCR = 0x00;
+
+ NVIC_SetVector(TIMER2_IRQn, (uint32_t)&readTrame);
+ NVIC_EnableIRQ(TIMER2_IRQn);
- LPC_TIM2->TC = 0; // Initialise Time Counter
- LPC_TIM2->PC = 0; // Initialise Prescale Counter
- LPC_TIM2->PR = 0; // Initialise Prescale Register
- LPC_TIM2->TCR = 0x02; // Reset Timer Control Register
- LPC_TIM2->IR = 0xFF; // Initialise Interrupt Register
- LPC_TIM2->CCR |= 0x29; // Initialise Capture Control Register
+ LPC_TIM2->TCR = 0x01; // Start Timer Control Register
- LPC_TIM2->TCR = 0x01; // Start Timer Control Register
+ //Initialize PWM
+ LPC_PWM1->MCR |= (1 << 1) | (1 << 0); // Initialize Match Control Register Interrupt/Reset
+ LPC_PWM1->PCR |= (1 << 10) | (1 << 2); // Initialize PWM Control Register Output/Double-edge
+
+ LPC_PWM1->MR0 = SystemCoreClock; // Period
+ LPC_PWM1->LER |= (1 << 2) | (1 << 1); // Initialize Latch Enable Register
+ LPC_PWM1->TCR = (1 << 0); // Enable counter
- while(1) {
-
- while (in.read() == 0);
-
- NVIC_EnableIRQ(TIMER2_IRQn);
- NVIC_DisableIRQ(TIMER2_IRQn);
-
- while (in.read() == 1);
-
- NVIC_EnableIRQ(TIMER2_IRQn);
- NVIC_DisableIRQ(TIMER2_IRQn);
- }*/
+ LPC_PWM1->IR = 0xFF; // Reset Interrupt Registe
}
+
+int main()
+{
+ initialize();
+
+ sendTrame(bits);
+
+ while(true) {
+ }
+}