Reply Shortage Actions

If the reply buffer size is less than the size of the buffer received by the master, the missed bytes can be filled by zeroes (the DLN_SPI_SLAVE_REPLY_SHORTAGE_SEND_ZEROES reply type) or by repeating the reply bytes (the DLN_SPI_SLAVE_REPLY_SHORTAGE_REUSE reply type).

You have a loaded reply: ABCD. The master initiates a transmission of 6 words. From the slave, the master receives the following:

  • If the DLN_SPI_SLAVE_REPLY_SHORTAGE_SEND_ZEROES reply type is set, the master receives ABCD00. The last bytes are filled with zeroes.

    DLN_SPI_SLAVE_REPLY_SHORTAGE_SEND_ZEROES reply type

  • If the DLN_SPI_SLAVE_REPLY_SHORTAGE_REUSE reply type is set, the master receives ABCDAB. The last bytes are filled by repeating the first bytes of the reply.

    DLN_SPI_SLAVE_REPLY_SHORTAGE_REUSE reply type

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