Problem in LPSPI interfacing of MIMXRT1020-EVK with PCF2129 using peripherals tools.

[emb01_jtronix]

I am interfacing PCF2129 RTC with MIMXRT1020 board using LPSPI in polling mode.I am using LPSPI_MasterTransferBlocking(LPSPI_1_PERIPHERAL, &xTxTransfer) function to read and write data. I can write data but I am facing problem while reading data. Only one data size is mention in this function. 

 I required different data size for transmit data and receive data how can I manage data size for both using LPSPI_MasterTransferBlocking(LPSPI_1_PERIPHERAL, &xTxTransfer)  function?

[victorjimenez]

Hello, 

The function LPSPI_MasterTransferBlocking can receive or transmit different data sizes. To do this you just need to modify the size_t variable inside the lpspi_transfer_t structure.  

Have a great day,
Victor

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