The difference between Flexio_Spi_IpAsyncTransmit and Flexio_Spi_Ip_SyncTransmit

[victory]

Dear NXP: 1. Please recommend a routine that uses Flexio_Spi as the Spi master. 2. When using the Flexio_Spi module, should the Spi master node use the Flexio_Spi_Ip_AsyncTransmit function or the Flexio_Spi_Ip_syncTransmit function?

[VaneB]

Hi @victory 

1. Please recommend a routine that uses Flexio_Spi as the Spi master. The S32K3 Real-Time Drivers Versions 2.0.0, 2.0.1, 2.0.2 and 2.0.3, provide a low-level (Ip) and high-level (MCAL) example codes named Lpspi_Flexio_Ip_Transfer and Spi_Transfer. These examples emulates a master SPI using FlexIO and the LPSPI is configured as slave.

2. When using the Flexio_Spi module, should the Spi master node use the Flexio_Spi_Ip_AsyncTransmit function or the Flexio_Spi_Ip_syncTransmit function? Synchronous serial communication is based on synchronized clocks between devices; Otherwise, in asynchronous serial communication, the transmission time interval is not constant.

BR, VaneB

[victory]

Hi,

 1.I use Real-Time Drivers Versions 4.0.0 now，please send me Real-Time Drivers Versions 2.0.0, 2.0.1, 2.0.2 and 2.0.3, provide a low-level (Ip) and high-level (MCAL) example codes named Lpspi_Flexio_Ip_Transfer and Spi_Transfer.

2.Does SPI master node usually use Flexio_Spi_Ip_syncTransmit？

[VaneB]

Hi @victory 

1. I use Real-Time Drivers Versions 4.0.0 now，please send me Real-Time Drivers Versions 2.0.0, 2.0.1, 2.0.2 and 2.0.3, provide a low-level (Ip) and high-level (MCAL) example codes named Lpspi_Flexio_Ip_Transfer and Spi_Transfer. All available RTD versions can be downloaded from S32K3 Standard Software > Automotive SW - S32K3/S32M27x - Real-Time Drivers for Cortex-M. 

NOTE: All these versions were developed and tested on S32DS version 3.4.

2. Does SPI master node usually use Flexio_Spi_Ip_syncTransmit? Asynchronous or synchronous transmission does not depend on whether it is master or slave, it depends on whether there is a clock line as a reference between the devices.

[victory]

Hi,Vaneb

Can the S32DS 3.5 install RTD2.0.0 and RTD4.0.0 at the same time?

Thanks!

[VaneB]

Hi @victory 

RTD versions 2.0.X (2.0.0, 2.0.1, 2.0.2 or 2.0.3) were developed and tested in S32DS version 3.4, so its functionality is not guaranteed in other IDE versions. Please download the corresponding IDE version.

[victory]

The problem has been solved！

Thanks！