__interrupt void wdt_interrupt(void) { static unsigned int ticks = 0; if (ticks > 511) { // Implement real time clock ss++; if (ss > 59) { ss = 0; mm ++; if (mm > 59) { mm = 0; hh++; if (hh > 23) hh = 0; } } ticks = 0; } ticks++; update_switches(); }
/* * Set freq/tuning between 5MHz to 6800 MHz (less than 16bits really used) * hz between 0 to 999999 Hz (not checked) * return false on error or true if success. */ bool set_freq(uint32_t freq_mhz, uint32_t freq_hz) { bool success; uint32_t RFFC5071_freq_mhz; uint32_t MAX2837_freq_hz; uint32_t real_RFFC5071_freq_mhz; uint32_t tmp_hz; success = true; if(freq_mhz >= MIN_LP_FREQ_MHZ) { if(freq_mhz < MAX_LP_FREQ_MHZ) { switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS); RFFC5071_freq_mhz = MAX2837_FREQ_NOMINAL_MHZ - freq_mhz; /* Set Freq and read real freq */ real_RFFC5071_freq_mhz = rffc5071_set_frequency(RFFC5071_freq_mhz, 0); if(real_RFFC5071_freq_mhz < RFFC5071_freq_mhz) { tmp_hz = -((RFFC5071_freq_mhz - real_RFFC5071_freq_mhz) * FREQ_ONE_MHZ); }else { tmp_hz = ((real_RFFC5071_freq_mhz - RFFC5071_freq_mhz) * FREQ_ONE_MHZ); } MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz; max2837_set_frequency(MAX2837_freq_hz); update_switches(); }else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) ) { switchctrl |= SWITCHCTRL_MIX_BYPASS; MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz; /* RFFC5071_freq_mhz <= not used in Bypass mode */ max2837_set_frequency(MAX2837_freq_hz); update_switches(); }else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz < MAX_HP_FREQ_MHZ) ) { switchctrl &= ~SWITCHCTRL_MIX_BYPASS; switchctrl |= SWITCHCTRL_HP; RFFC5071_freq_mhz = freq_mhz - MAX2837_FREQ_NOMINAL_MHZ; /* Set Freq and read real freq */ real_RFFC5071_freq_mhz = rffc5071_set_frequency(RFFC5071_freq_mhz, 0); if(real_RFFC5071_freq_mhz < RFFC5071_freq_mhz) { tmp_hz = ((RFFC5071_freq_mhz - real_RFFC5071_freq_mhz) * FREQ_ONE_MHZ); }else { tmp_hz = -((real_RFFC5071_freq_mhz - RFFC5071_freq_mhz) * FREQ_ONE_MHZ); } MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz; max2837_set_frequency(MAX2837_freq_hz); update_switches(); }else { /* Error freq_mhz too high */ success = false; } }else { /* Error freq_mhz too low */ success = false; } return success; }
/* * Set freq/tuning between 5MHz to 6800 MHz (less than 16bits really used) * hz between 0 to 999999 Hz (not checked) * return false on error or true if success. */ bool set_freq(uint32_t freq_mhz, uint32_t freq_hz) { bool success; uint32_t RFFC5071_freq_mhz; uint32_t MAX2837_freq_hz; uint32_t real_RFFC5071_freq_hz; uint32_t tmp_hz; success = true; gpio_clear(PORT_XCVR_ENABLE, (PIN_XCVR_RXENABLE | PIN_XCVR_TXENABLE)); if(freq_mhz >= MIN_LP_FREQ_MHZ) { if(freq_mhz < MAX_LP_FREQ_MHZ) { switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS); RFFC5071_freq_mhz = MAX2837_FREQ_NOMINAL_MHZ - freq_mhz; /* Set Freq and read real freq */ real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz); if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ) { tmp_hz = -(RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz); }else { tmp_hz = (real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ); } MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz; max2837_set_frequency(MAX2837_freq_hz); update_switches(); }else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) ) { switchctrl |= SWITCHCTRL_MIX_BYPASS; MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz; /* RFFC5071_freq_mhz <= not used in Bypass mode */ max2837_set_frequency(MAX2837_freq_hz); update_switches(); }else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz < MAX_HP_FREQ_MHZ) ) { switchctrl &= ~SWITCHCTRL_MIX_BYPASS; switchctrl |= SWITCHCTRL_HP; RFFC5071_freq_mhz = freq_mhz - MAX2837_FREQ_NOMINAL_MHZ; /* Set Freq and read real freq */ real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz); if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ) { tmp_hz = (RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz); }else { tmp_hz = -(real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ); } MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz; max2837_set_frequency(MAX2837_freq_hz); update_switches(); }else { /* Error freq_mhz too high */ success = false; } }else { /* Error freq_mhz too low */ success = false; } if(transceiver_mode == TRANSCEIVER_MODE_RX) gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_RXENABLE); else if(transceiver_mode == TRANSCEIVER_MODE_TX) gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_TXENABLE); freq_mhz_cache = freq_mhz; freq_hz_cache = freq_hz; return success; }
void main(void){ //------------------------------------------------------------------------------ // Main Program // This is the main routine for the program. Execution of code starts here. // The operating system is Back Ground Fore Ground. // //------------------------------------------------------------------------------ init_ports(); Init_Clocks(); Init_Conditions(); init_timers(); five_msec_delay(QUARTER_SECOND); Init_LCD(); setup_sw_debounce(); init_adc(); P1OUT |= IR_LED; init_serial_uart(); WDTCTL = WDTPW + WDTHOLD; setup_pwm(); set_motor_speed(R_FORWARD, PWM_RES); set_motor_speed(L_FORWARD, PWM_RES); unsigned int time_sequence = START_VAL; // counter for switch loop unsigned int previous_count = START_VAL; // automatic variable for // comparing timer_count unsigned int display_count = START_VAL; is_follow_running = FALSE; //------------------------------------------------------------------------------ // Begining of the "While" Operating System //------------------------------------------------------------------------------ while(ALWAYS) { // Can the Operating system run if(get_timer_count() > display_count + QUARTER_SECOND) { display_count = get_timer_count(); Display_Process(); time_sequence = START_VAL; } update_switches(); // Check for switch state change update_menu(); if(is_follow_running) run_follow(); if(uca0_is_message_received()) { BufferString message = uca0_read_buffer(TRUE); receive_command(message.head + message.offset); } if(uca1_is_message_received()) { update_menu(); BufferString message = uca1_read_buffer(TRUE); uca0_transmit_message(message.head, message.offset); if(find(WIFI_COMMAND_SYMBOL, message)) { receive_command(message.head + message.offset); } if(find(LOST_WIFI_COMMAND_SYMBOL, message)) { receive_command(CONNECT_NCSU); } } if(time_sequence > SECOND_AND_A_QUARTER) time_sequence = START_VAL; unsigned int current_timer_count = get_timer_count(); if(current_timer_count > previous_count) { previous_count = current_timer_count % UINT_16_MAX; time_sequence++; } } //------------------------------------------------------------------------------ }