topic S32K142 FlexIO SPI driver initialization ERROR in S32K

S32K142 FlexIO SPI driver initialization ERROR

AndyChen1 — Wed, 22 Nov 2023 07:14:44 GMT

Hello everyone:

Recently I am researching on S32K142 flexio SPI configuration, master mode.

Following configuration of demo example, FLEXIO_SPI_DRV_MasterInit is always return ERROR. Does anyone knoes why and how could I solve it?

Details as follows:

1. Background

mcu: S32K142_64

IDE: S32 Design Studio V2.2

SDK version: RTM 3.0.0

2. Configuration

2.1 PinSettings:

2.2 FlexIO spi configuration

3. Code implementaion:

flexio_device_state_t flexIODeviceState;
flexio_spi_master_state_t flexIOSPIState_Master;

FLEXIO_DRV_InitDevice(INST_FLEXIO_SPI1, &flexIODeviceState);
FLEXIO_SPI_DRV_MasterInit(INST_FLEXIO_SPI1, &flexio_spi1_MasterConfig0, &flexIOSPIState_Master);

4. Question:

4.1

when I debug to FLEXIO_SPI_DRV_MasterInit-->FLEXIO_DRV_InitDriver-->FLEXIO_DRV_Allocate

FLEXIO_DRV_Allocate is always return ERROR. Regiater PARAM is all zero, It seems no shifter and timer resource is available for my configuration.

Any one knows why?

4.2

And when I try to use FLEXIO_SPI_DRV_MasterTransferBlocking to send some dummy spi data, master->driverIdle is always TRUE, NO any signal according to scope. I dont know if it is related with 4.1 question?

Anyone help me? thanks a lot!

回复： S32K142 FlexIO SPI driver initialization ERROR

AndyChen1 — Wed, 22 Nov 2023 07:17:06 GMT

Update on 4.2

master->driverIdle is always FALSE in function FLEXIO_SPI_DRV_MasterTransferBlocking

-------------------------------------------------------- update above------------------------------------------------------

4.2

回复： S32K142 FlexIO SPI driver initialization ERROR

lukaszadrapa — Fri, 24 Nov 2023 08:57:31 GMT

Hi @AndyChen1

the most interesting information is that PARAM is always zero. Could you write down whole part number of your device?

Thanks,

Lukas

回复： S32K142 FlexIO SPI driver initialization ERROR

AndyChen1 — Fri, 24 Nov 2023 09:24:04 GMT

Hello @lukaszadrapa

whole part number is FS32K142URT0VLH LQFP64

I saw PARAM reset value is 0x04080404,

when I double click register name, the value read back is 0x0000000.

Is there any operation mistake or something I mis-understand?

回复： S32K142 FlexIO SPI driver initialization ERROR

lukaszadrapa — Fri, 24 Nov 2023 10:25:20 GMT

It looks like you have old version of the chip. The 'R' in the part number means (FS32K142URT0VLH LQFP64) that it's device with "Basic feature set" only without FlexIO. This version is not offered anymore:

So, my recommendation is to order new device. As you can see in the screenshot above, all current devices have FlexIO available now (see Y: Optional feature).

Regards,

Lukas

回复： S32K142 FlexIO SPI driver initialization ERROR

AndyChen1 — Mon, 27 Nov 2023 03:24:06 GMT

Hello @lukaszadrapa

Thanks for your kindly reply!