CC2652R: Sending L2CAP data larger than 256 bytes via SPI/NPI

Hi,

Before transmitting more than 256 bytes, you need to make sure the peer device can support that or else the channel will be closed.

I am not sure where you found the limitation of 256 bytes, can you point me to that?

From our SPI driver to uNPI implementation, I can see that the supported lens is set to uint16, which is more than 256 bytes.

// -----------------------------------------------------------------------------
//! \brief      This routine initializes and begins a SPI transaction
//!
//! \param[in]  len - Number of bytes to write.
//!
//! \return     uint16_t - number of bytes written to transport
// -----------------------------------------------------------------------------
uint16_t NPITLSPI_writeTransport(uint16_t len)

 *  ## Data Frames #
 *
 *  SPI data frames can be any size from 4-bits to 16-bits. If the dataSize in
 *  #SPI_Params is greater that 8-bits, then the SPICC26X2DMA driver
 *  implementation will assume that the #SPI_Transaction txBuf and rxBuf
 *  point to an array of 16-bit uint16_t elements.
 *
 *  dataSize  | buffer element size |
 *  --------  | ------------------- |
 *  4-8 bits  | uint8_t             |
 *  9-16 bits | uint16_t            |