How to resolve the Frame error flag?

s32k146_ige · ‎04-26-2023

hi,

i am getting UART frame error, with communication settings as follows, baud rate 1mbps, databits 8, stopbits 1 and parity none, the data i received i tried to capture on terminal software and i can see data as follows

Following are the settings for UART driver,

/* Instance structure is used for storing PAL instance information. */
uart_instance_t lpuart1_uart_instance = {
    .instType          = UART_INST_TYPE_LPUART,
    .instIdx           = 2U
};

/* Serial User Configurations */
uart_user_config_t lpuart1_uart_Config0 = {
    .baudRate         = 1000000,
    .bitCount         = UART_8_BITS_PER_CHAR,
    .parityMode       = UART_PARITY_DISABLED,
    .stopBitCount     = UART_ONE_STOP_BIT,
    .transferType     = UART_USING_INTERRUPTS,
    .rxDMAChannel     = 0U,
    .txDMAChannel     = 0U,
    .rxCallback       = rxCallback,
    .rxCallbackParam  = NULL,
    .txCallback       = NULL,
    .txCallbackParam  = NULL,
    .extension        = NULL
};

the code is uart_pal_echo_s32k146, just modified to send specific command as requirement.

i dont understand UART ERROR reason, if data is received properly on terminal software.

s32k146_ige · ‎05-04-2023

This was resolved after re writing the UART driver. We wrote the UART driver from base and used ISR to handle data. After that we started receiving packet frame at 1mbps data rate from Slave device.

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