TLF35584 with TC399 SPI communication error ( returns 0xFF always)

[AbhishekD]

Hello 

I am trying to established a connection between TC399 and TLF35584 using QSPI0.

I am using Infineon MCAL ( AUTOSAR ) and configured SPI module with below values. 

- Communication mode is set to synchronous.

- Baudrate at 50MHz

I am using example code given by infineon. The sequence I am following is as below.

Spi_Init () : This function is initializing the configured channels ( Currently only one for TLF )

initTLF35584() : This follows the sequence of

unlockRegisterTLF35584();
disableWindowWatchdogTLF35584(tlfDevice);
disableErrPinMonitorTLF35584(tlfDevice);
lockRegisterTLF35584();

Then calling getCurrentStateTLF35584() to read Device Status. I am getting 0xFF which does not look like right value. I am expecting a value indicating device is in INIT state.  
 

[Pranava_YN · Accepted solution]

Hi,

Can you please share the oscilloscope trace for this? I will check that and let you know. At your end can you please try adding a delay between Init() and getCurrentState() and check if you are able to get a proper response?

[AbhishekD]

Hi @Pranava_YN , Thanks for response. 

ANS 1 : At this moment oscilloscope trace is not available. Its actual ECU on which I am figuring out testpoint to capture trace on oscilloscope.

ANS 2 : As per suggestion I added delay but the result was same.

With some modification in SPI configuration , the value which I am getting now is 0xFF7F when I am disabling the watchdog and Error PIN.

Q 3 : Can some one confirm me the configuration for SPI done using EBTresos as below is right ? 

> General Configuration

SpiChannelBuffersAllowed : 0 ( IB )
SpiEnableLoopBackApi : 0
SpiLevelDelivered : 0
SpiSupportConcurrentSyncTransmit : 1
SpiSyncTransmitTimeoutDuration : 0xFFFF
SpiHwStatusApi :0 

SpiInterruptibleSequence : Disable

> Channel Configuration 

SpiChannelId : 0 
SpiChannelType : IB ( Internal Buffer Type )
SpiDataWidth : 15
SpiIbNBuffers : 10
SpiTransferStart : MSB

> Device Configuration 

SpiBaudrate : 5000000
SpiCsIdentifier : Channel 0
SpiCsPolarity : LOW
SpiDataShiftEdge : TRAILING
SpiEnableCs : 1
SpiHwUnit : QSPI0
SpiAutoCalcBaudParams : 1
SpiShiftClockIdleLevel : LOW
SpiParitySupport : EVEN
SpiCsSelection  : CS_VIA_PERIPHERAL_ENGINE
SpiDelayParamTrailPre : 2
SpiDelayParamTrailLength : 5
SpiDelayParamIdlePre : 0
SpiDelayParamIdleLength : 1
SpiDelayParamLeadPre : 0
SpiDelayParamLeadLength : 7

> PORT Configuration 

General

PortNumber 22
PortNumberOfPortPins 12

PortPin4

PortPinDirection PORT_PIN_OUT
PortPinInitialMode ALT4
PortPinLevelValue PORT_PIN_LEVEL_HIGH
PortPinOutputPadDriveStrength PORT_PIN_DEFAULT_DRIVER
PortPinOutputPinDriveMode PORT_PIN_OUT_PUSHPULL
PortPinMode PortPinMode PORT_PIN_MODE_ALL

PortPin_5

PortPinDirection PORT_PIN_OUT
PortPinInitialMode ALT4
PortPinLevelValue PORT_PIN_LEVEL_HIGH
PortPinOutputPadDriveStrength PORT_PIN_DEFAULT_DRIVER
PortPinOutputPinDriveMode PORT_PIN_OUT_PUSHPULL
PortPinMode PortPinMode PORT_PIN_MODE_ALL

PortPin_6

PortPinDirection PORT_PIN_IN
PortPinInputPullResistor PORT_PIN_IN_PULL_DOWN
PortPinInputPadLevel PORT_INPUT_LEVEL_CMOS_AUTOMOTIVE
PortPinMode PortPinMode PORT_PIN_MODE_ALL

PortPin_7

PortPinDirection PORT_PIN_OUT
PortPinInitialMode ALT4
PortPinLevelValue PORT_PIN_LEVEL_LOW
PortPinOutputPadDriveStrength PORT_PIN_DEFAULT_DRIVER
PortPinOutputPinDriveMode PORT_PIN_OUT_PUSHPULL

Q 4 : Interrupts for SPI are disabled. SPI Autosar module provides read and write API which are used. Interrupts are not mandatory is my understanding. Is it right ?

[Pranava_YN]

Hi,

Sorry for the delay in responding,

Yes, both SPI configuration and your understanding on SPI interrupts are correct.