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What tools are needed to develop Flexray?

Question asked by Shui Yuan Wang on Aug 13, 2019
Latest reply on Aug 13, 2019 by Peter Vlna

I want to develop Flexray, Flexray bitrate is 5M bit/s, but NXP provide sample code is 10M bit/s.

So the program executes here and it loops indefinitely.

/* Wait till the FR CC is not in the FR_POCSTATE_NORMAL_ACTIVE */
while(Fr_get_POC_state() != FR_POCSTATE_NORMAL_ACTIVE)
   protocol_state = Fr_get_POC_state(); /* Current POC state */
I know I should modify the parameters in Fr_low_level_cfg_set_00

/* Structure of this type contains configuration
information of the one low level parameters set */
const Fr_low_level_config_type Fr_low_level_cfg_set_00 =
{
   10, /* G_COLD_START_ATTEMPTS */
   3, /* GD_ACTION_POINT_OFFSET */
   83, /* GD_CAS_RX_LOW_MAX */
   0, /* GD_DYNAMIC_SLOT_IDLE_PHASE */
   40, /* GD_MINISLOT */
   3, /* GD_MINI_SLOT_ACTION_POINT_OFFSET */
   50, /* GD_STATIC_SLOT */
   13, /* GD_SYMBOL_WINDOW */
   11, /* GD_TSS_TRANSMITTER */
   59, /* GD_WAKEUP_SYMBOL_RX_IDLE */
   50, /* GD_WAKEUP_SYMBOL_RX_LOW */
   301, /* GD_WAKEUP_SYMBOL_RX_WINDOW */
   180, /* GD_WAKEUP_SYMBOL_TX_IDLE */
   60, /* GD_WAKEUP_SYMBOL_TX_LOW */
   2, /* G_LISTEN_NOISE */
   5000, /* G_MACRO_PER_CYCLE */
   10, /* G_MAX_WITHOUT_CLOCK_CORRECTION_PASSIVE */
   14, /* G_MAX_WITHOUT_CLOCK_CORRECTION_FATAL */
   22, /* G_NUMBER_OF_MINISLOTS */
   60, /* G_NUMBER_OF_STATIC_SLOTS */
   4920, /* G_OFFSET_CORRECTION_START */
   16, /* G_PAYLOAD_LENGTH_STATIC */
   5, /* G_SYNC_NODE_MAX */
   2, /* G_NETWORK_MANAGEMENT_VECTOR_LENGTH */
   FALSE, /* G_ALLOW_HALT_DUE_TO_CLOCK */
   20, /* G_ALLOW_PASSIVE_TO_ACTIVE */
   FR_CHANNEL_AB, /* P_CHANNELS */
   300, /* PD_ACCEPTED_STARTUP_RANGE */
   1, /* P_CLUSTER_DRIFT_DAMPING */
   56, /* P_DECODING_CORRECTION */
   1, /* P_DELAY_COMPENSATION_A */
   1, /* P_DELAY_COMPENSATION_B */
   401202, /* PD_LISTEN_TIMEOUT */
   601, /* PD_MAX_DRIFT */
   0, /* P_EXTERN_OFFSET_CORRECTION */
   0, /* P_EXTERN_RATE_CORRECTION */
   1, /* P_KEY_SLOT_ID */
   TRUE, /* P_KEY_SLOT_USED_FOR_STARTUP */
   TRUE, /* P_KEY_SLOT_USED_FOR_SYNC */
   242, /* P_KEY_SLOT_HEADER_CRC */
   21, /* P_LATEST_TX */
   5, /* P_MACRO_INITIAL_OFFSET_A */
   5, /* P_MACRO_INITIAL_OFFSET_B */
   23, /* P_MICRO_INITIAL_OFFSET_A */
   23, /* P_MICRO_INITIAL_OFFSET_B */
   200000, /* P_MICRO_PER_CYCLE */
   1201, /* P_OFFSET_CORRECTION_OUT */
   600, /* P_RATE_CORRECTION_OUT */
   FALSE, /* P_SINGLE_SLOT_ENABLED */
   FR_CHANNEL_A, /* P_WAKEUP_CHANNEL */
   16, /* P_WAKEUP_PATTERN */
   40, /* P_MICRO_PER_MACRO_NOM */
   8 /* P_PAYLOAD_LENGTH_DYN_MAX */
};

But I don't know how to fill in the correct parameters.

 

Is there any tool that can help me set the parameters, for example, is the oscilloscope necessary?

 

Thanks.

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