コード例 #1
0
ファイル: main.c プロジェクト: ErichStyger/CMSIS-DAP
__task void main_task(void) {
    // State processing
    uint16_t flags;

    // LED
    uint8_t dap_led_value = 1;
    uint8_t cdc_led_value = 1;
    uint8_t msd_led_value = 1;

    // USB
    uint32_t usb_state_count;

    // thread running after usb connected started
    uint8_t thread_started = 0;

    // button state
    char button_activated;

    // string containing unique ID
    uint8_t * id_str;

    // Get a reference to this task
    main_task_id = os_tsk_self();

    // leds
    gpio_init();

    usbd_init();
    swd_init();

    // Turn on LED
    gpio_set_dap_led(1);
    gpio_set_cdc_led(1);
    gpio_set_msd_led(1);

    // Setup reset button
    gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
    button_activated = 1;

    // USB
    usbd_connect(0);
    usb_busy = USB_IDLE;
    usb_busy_count = 0;
    usb_state = USB_CONNECTING;
    usb_state_count = USB_CONNECT_DELAY;

    // Update HTML version information file
    update_html_file();

    // Start timer tasks
    os_tsk_create_user(timer_task_30mS, TIMER_TASK_30_PRIORITY, (void *)stk_timer_30_task, TIMER_TASK_30_STACK);

    // Target running
    target_set_state(RESET_RUN_WITH_DEBUG);

    // start semihost task
    semihost_init();
    semihost_enable();

    while(1) {
        os_evt_wait_or(   FLAGS_MAIN_RESET              // Put target in reset state
                        | FLAGS_MAIN_90MS               // 90mS tick
                        | FLAGS_MAIN_30MS               // 30mS tick
                        | FLAGS_MAIN_POWERDOWN          // Power down interface
                        | FLAGS_MAIN_DISABLEDEBUG       // Power down interface
                        | FLAGS_MAIN_USB_DISCONNECT,    // Disable target debug
                        NO_TIMEOUT);

        // Find out what event happened
        flags = os_evt_get();

        if (flags & FLAGS_MAIN_USB_DISCONNECT) {
            usb_busy = USB_IDLE;                         // USB not busy
            usb_state_count = 4;
            usb_state = USB_DISCONNECT_CONNECT;        // disconnect the usb
        }

        if (flags & FLAGS_MAIN_RESET) {
            cdc_led_state = LED_OFF;
            gpio_set_cdc_led(0);
            //usbd_cdc_ser_flush();
            if (send_uID) {
                // set the target in reset to not receive char on the serial port
                target_set_state(RESET_HOLD);

                // send uid
                id_str = get_uid_string();
                USBD_CDC_ACM_DataSend(id_str, strlen((const char *)id_str));
                send_uID = 0;
            }
            // Reset target
            target_set_state(RESET_RUN);
            cdc_led_state = LED_FLASH;
            gpio_set_cdc_led(1);
            button_activated = 0;
        }

        if (flags & FLAGS_MAIN_POWERDOWN) {
            // Stop semihost task
            semihost_disable();

            // Disable debug
            target_set_state(NO_DEBUG);

            // Disconnect USB
            usbd_connect(0);

            // Turn off LED
            gpio_set_dap_led(0);
            gpio_set_cdc_led(0);
            gpio_set_msd_led(0);

            // TODO: put the interface chip in sleep mode
            while (1) {    }
        }

        if (flags & FLAGS_MAIN_DISABLEDEBUG) {
            // Stop semihost task
            semihost_disable();

            // Disable debug
            target_set_state(NO_DEBUG);
        }

        if (flags & FLAGS_MAIN_90MS) {
            if (!button_activated) {
                gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
                button_activated = 1;
            }

            // Update USB busy status
            switch (usb_busy) {

                case USB_ACTIVE:
                    if (DECZERO(usb_busy_count) == 0) {
                        usb_busy=USB_IDLE;
                    }
                    break;

                case USB_IDLE:
                default:
                    break;
            }

            // Update USB connect status
            switch (usb_state) {

                case USB_DISCONNECTING:
                    // Wait until USB is idle before disconnecting
                    if (usb_busy == USB_IDLE) {
                        usbd_connect(0);
                        usb_state = USB_DISCONNECTED;
                    }
                    break;

                case USB_DISCONNECT_CONNECT:
                    // Wait until USB is idle before disconnecting
                    if ((usb_busy == USB_IDLE) && (DECZERO(usb_state_count) == 0)) {
                        usbd_connect(0);
                        usb_state = USB_CONNECTING;

                        // Update HTML file
                        update_html_file();
                    }
                    break;

                case USB_CONNECTING:
                    // Wait before connecting
                    if (DECZERO(usb_state_count) == 0) {
                        usbd_connect(1);
                        usb_state = USB_CHECK_CONNECTED;
                    }
                    break;

                case USB_CHECK_CONNECTED:
                    if(usbd_configured()) {
                        if (!thread_started) {
                            os_tsk_create_user(hid_process, DAP_TASK_PRIORITY, (void *)stk_dap_task, DAP_TASK_STACK);
                            serial_task_id = os_tsk_create_user(serial_process, SERIAL_TASK_PRIORITY, (void *)stk_serial_task, SERIAL_TASK_STACK);
                            thread_started = 1;
                        }
                        usb_state = USB_CONNECTED;
                    }
                    break;

                case USB_CONNECTED:
                case USB_DISCONNECTED:
                default:
                    break;
            }
         }

        // 30mS tick used for flashing LED when USB is busy
        if (flags & FLAGS_MAIN_30MS) {
            if (dap_led_usb_activity && ((dap_led_state == LED_FLASH) || (dap_led_state == LED_FLASH_PERMANENT))) {
                // Flash DAP LED ONCE
                if (dap_led_value) {
                    dap_led_value = 0;
                } else {
                    dap_led_value = 1; // Turn on
                    if (dap_led_state == LED_FLASH) {
                        dap_led_usb_activity = 0;
                    }
                }

                // Update hardware
                gpio_set_dap_led(dap_led_value);
            }

            if (msd_led_usb_activity && ((msd_led_state == LED_FLASH) || (msd_led_state == LED_FLASH_PERMANENT))) {
                // Flash MSD LED ONCE
                if (msd_led_value) {
                    msd_led_value = 0;
                } else {
                    msd_led_value = 1; // Turn on
                    if (msd_led_state == LED_FLASH) {
                        msd_led_usb_activity = 0;
                    }
                }

                // Update hardware
                gpio_set_msd_led(msd_led_value);
            }

            if (cdc_led_usb_activity && ((cdc_led_state == LED_FLASH) || (cdc_led_state == LED_FLASH_PERMANENT))) {
                // Flash CDC LED ONCE
                if (cdc_led_value) {
                    cdc_led_value = 0;
                } else {
                    cdc_led_value = 1; // Turn on
                    if (cdc_led_state == LED_FLASH) {
                        cdc_led_usb_activity = 0;
                    }
                }

                // Update hardware
                gpio_set_cdc_led(cdc_led_value);
            }

        }
    }
}
コード例 #2
0
ファイル: main.c プロジェクト: K-Aadhi/CMSIS-DAP
__task void main_task(void) {
    // State processing
    uint16_t flags;

    // LED
    uint8_t dap_led_value = 1;
    uint8_t cdc_led_value = 1;
    uint8_t msd_led_value = 1;

    // USB
    uint32_t usb_state_count;

    // thread running after usb connected started
    uint8_t thread_started = 0;

    // button state
    char button_activated;

    // string containing unique ID
    uint8_t * id_str;

    // Initialize our serial mailbox
    os_mbx_init(&serial_mailbox, sizeof(serial_mailbox));

    // Get a reference to this task
    main_task_id = os_tsk_self();

    // leds
    gpio_init();
    // Turn off LED
    gpio_set_dap_led(1);
    gpio_set_cdc_led(1);
    gpio_set_msd_led(1);

#ifdef BOARD_UBLOX_C027
    PORT_SWD_SETUP();
    // wait until reset output to the target is pulled high
    while (!PIN_nRESET_IN()) {
        /* wait doing nothing */
    }
    os_dly_wait(4);
    // if the reset input from button is low then enter isp programming mode
    if (!(LPC_GPIO->B[19/*RESET_PIN*/ + (1/*RESET_PORT*/ << 5)] & 1)) {
        enter_isp();
    }
#endif 

    usbd_init();
    swd_init();

    // Setup reset button
    gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
    button_activated = 1;

    // USB
    usbd_connect(0);
    usb_busy = USB_IDLE;
    usb_busy_count = 0;
    usb_state = USB_CONNECTING;
    usb_state_count = USB_CONNECT_DELAY;

    // Update HTML version information file
    update_html_file();

    // Start timer tasks
    os_tsk_create_user(timer_task_30mS, TIMER_TASK_30_PRIORITY, (void *)stk_timer_30_task, TIMER_TASK_30_STACK);

#ifndef BOARD_UBLOX_C027
    // Target running
    //target_set_state(RESET_RUN_WITH_DEBUG);
#endif

#ifdef BOARD_NRF51822AA
    // Target running
    target_set_state(RESET_RUN);
#endif
    // start semihost task
    semihost_init();
    semihost_enable();

    while(1) {
        os_evt_wait_or(   FLAGS_MAIN_RESET              // Put target in reset state
                        | FLAGS_MAIN_90MS               // 90mS tick
                        | FLAGS_MAIN_30MS               // 30mS tick
                        | FLAGS_MAIN_POWERDOWN          // Power down interface
                        | FLAGS_MAIN_DISABLEDEBUG       // Power down interface
#ifdef USE_USB_EJECT_INSERT
                        | FLAGS_MAIN_USB_DISCONNECT     // Disable target debug
                        | FLAGS_MAIN_USB_MEDIA_EJECT,   // Eject file system
#else
                        | FLAGS_MAIN_USB_DISCONNECT,    // Disable target debug
#endif
                        NO_TIMEOUT);

        // Find out what event happened
        flags = os_evt_get();

        if (flags & FLAGS_MAIN_USB_DISCONNECT) {
            usb_busy = USB_IDLE;                         // USB not busy
            usb_state_count = 4;
            usb_state = USB_DISCONNECT_CONNECT;        // disconnect the usb
        }

#ifdef USE_USB_EJECT_INSERT
        if (flags & FLAGS_MAIN_USB_MEDIA_EJECT) {
            EjectInsertMediaMode = EJECT_INSERT_WAIT_TO_EJECT;
            EjectInsertMediaCounter = EJECT_INSERT_DELAY_500MS;
        }
#endif

        if (flags & FLAGS_MAIN_RESET) {
            cdc_led_state = LED_OFF;
            gpio_set_cdc_led(0);
            //usbd_cdc_ser_flush();
            if (send_uID) {
                // set the target in reset to not receive char on the serial port
                target_set_state(RESET_HOLD);

                // send uid
                id_str = get_uid_string();
                USBD_CDC_ACM_DataSend(id_str, strlen((const char *)id_str));
                send_uID = 0;
            }
            // Reset target
            target_set_state(RESET_RUN);
            cdc_led_state = LED_FLASH;
            gpio_set_cdc_led(1);
            button_activated = 0;
        }

        if (flags & FLAGS_MAIN_POWERDOWN) {
            // Stop semihost task
            semihost_disable();

            // Disable debug
            target_set_state(NO_DEBUG);

            // Disconnect USB
            usbd_connect(0);

            // Turn off LED
            gpio_set_dap_led(0);
            gpio_set_cdc_led(0);
            gpio_set_msd_led(0);

            // TODO: put the interface chip in sleep mode
            while (1) {    }
        }

        if (flags & FLAGS_MAIN_DISABLEDEBUG) {
            // Stop semihost task
            semihost_disable();

            // Disable debug
            target_set_state(NO_DEBUG);
        }

        if (flags & FLAGS_MAIN_90MS) {
            if (!button_activated) {
                gpio_enable_button_flag(main_task_id, FLAGS_MAIN_RESET);
                button_activated = 1;
            }

#ifdef USE_USB_EJECT_INSERT
            if (EjectInsertMediaMode == EJECT_INSERT_WAIT_TO_EJECT) {
                if (--EjectInsertMediaCounter == 0) {
                    // Have waited ~0.5 second, time to eject media
                    EjectInsertMediaMode = EJECT_INSERT_WAIT_TO_INSERT;
                    EjectInsertMediaCounter = EJECT_INSERT_DELAY_500MS;
                    USBD_MSC_MediaReady = __FALSE;
                }
            }
            if ((EjectInsertMediaMode == EJECT_INSERT_WAIT_TO_INSERT) && !USBD_MSC_MediaReadyEx) {
                // The host computer have questioned the state and received
                // the message that the media has been removed
                if (--EjectInsertMediaCounter == 0) {
                    // Have waited ~0.5 seconds after ejecting, time to insert media
                    EjectInsertMediaMode = EJECT_INSERT_INACTIVE;
                    USBD_MSC_MediaReady = __TRUE;
                }
            }
#endif

            // Update USB busy status
            switch (usb_busy) {

                case USB_ACTIVE:
                    if (DECZERO(usb_busy_count) == 0) {
                        usb_busy=USB_IDLE;
                    }
                    break;

                case USB_IDLE:
                default:
                    break;
            }

            // Update USB connect status
            switch (usb_state) {

                case USB_DISCONNECTING:
                    // Wait until USB is idle before disconnecting
                    if (usb_busy == USB_IDLE) {
                        usbd_connect(0);
                        usb_state = USB_DISCONNECTED;
                    }
                    break;

                case USB_DISCONNECT_CONNECT:
                    // Wait until USB is idle before disconnecting
                    if ((usb_busy == USB_IDLE) && (DECZERO(usb_state_count) == 0)) {
                        usbd_connect(0);
                        usb_state = USB_CONNECTING;
                        // Update HTML file
                        update_html_file();
						// Delay the connecting state before reconnecting to the host - improved usage with VMs
						usb_state_count = 10; //(90ms * 10 = 900ms)
                    }
                    break;

                case USB_CONNECTING:
                    // Wait before connecting
                    if (DECZERO(usb_state_count) == 0) {
                        usbd_connect(1);
                        usb_state = USB_CHECK_CONNECTED;
                    }
                    break;

                case USB_CHECK_CONNECTED:
                    if(usbd_configured()) {
                        if (!thread_started) {
                            os_tsk_create_user(hid_process, DAP_TASK_PRIORITY, (void *)stk_dap_task, DAP_TASK_STACK);
                            serial_task_id = os_tsk_create_user(serial_process, SERIAL_TASK_PRIORITY, (void *)stk_serial_task, SERIAL_TASK_STACK);
                            thread_started = 1;
                        }
                        usb_state = USB_CONNECTED;
                    }
                    break;

                case USB_CONNECTED:
                case USB_DISCONNECTED:
                default:
                    break;
            }
         }

        // 30mS tick used for flashing LED when USB is busy
        if (flags & FLAGS_MAIN_30MS) {
            if (dap_led_usb_activity && ((dap_led_state == LED_FLASH) || (dap_led_state == LED_FLASH_PERMANENT))) {
                // Flash DAP LED ONCE
                if (dap_led_value) {
                    dap_led_value = 0;
                } else {
                    dap_led_value = 1; // Turn on
                    if (dap_led_state == LED_FLASH) {
                        dap_led_usb_activity = 0;
                    }
                }

                // Update hardware
                gpio_set_dap_led(dap_led_value);
            }

            if (msd_led_usb_activity && ((msd_led_state == LED_FLASH) || (msd_led_state == LED_FLASH_PERMANENT))) {
                // Flash MSD LED ONCE
                if (msd_led_value) {
                    msd_led_value = 0;
                } else {
                    msd_led_value = 1; // Turn on
                    if (msd_led_state == LED_FLASH) {
                        msd_led_usb_activity = 0;
                    }
                }

                // Update hardware
                gpio_set_msd_led(msd_led_value);
            }

            if (cdc_led_usb_activity && ((cdc_led_state == LED_FLASH) || (cdc_led_state == LED_FLASH_PERMANENT))) {
                // Flash CDC LED ONCE
                if (cdc_led_value) {
                    cdc_led_value = 0;
                } else {
                    cdc_led_value = 1; // Turn on
                    if (cdc_led_state == LED_FLASH) {
                        cdc_led_usb_activity = 0;
                    }
                }

                // Update hardware
                gpio_set_cdc_led(cdc_led_value);
            }

        }
    }
}