NO signal on SPI_SOUT pin.

robert2000 — Tue, 09 Aug 2016 09:24:16 GMT

I am using for the time LDD Components. For SPIMaster_LDD Component , I
am getting the following Issue. Could somebody help. Thank you.

Issue :
SPI-SIN directly connected to SPI_SOUT. NO signal on this
commun pin.

Samething
if open, or connected to a slave SPI terminal

Signal = SPI_PCS : Ok One negative gate

Signal = SPI_SCK : OK 2 time 8 clocks

Schematic :
MKV10Z32LC7

Pins directly connected

SPI_PCS : PTC4

SPI_SCK: PTC5

SPI_SOUT : PTC6

SPI_SIN : PTC7

Emulator :
PE MICRO MULTILINK UNIVERSAL

Software :Kinetis
Design Studio 3.0.0 IDE Components
BitIO_LDD Component : working fine
ADC_LDD Component : working fine

SPIMaster_LDD Component

Detail Software SPIMaster

//Main

//Variables
SPI

LDD_TDeviceData*Pointeur_SPI_KV10;

volatileLDD_SPIMASTER_TError ComError = 0U;

volatile bool DrapeauEnvoiSPIkv10 = FALSE;

/*lint
-save -e970 Disable MISRA rule (6.3) checking. */

int
main(void)

/*lint
-restore Enable MISRA rule (6.3) checking. */

{

/*
Write your local variable definition here */

/***
Processor Expert internal initialization. DON'T REMOVE THIS CODE!!!
***/

PE_low_level_init();

Pointeur_SPI_KV10
= SPI_KV10_Init(NULL);

for(;;)

{

DrapeauEnvoiSPIkv10 = FALSE;

#defineBLOCK_SIZE 2

uint8 Donnees_Sortie[2]="12";

Erreur= SPI_KV10_SendBlock(Pointeur_SPI_KV10, Donnees_Sortie, BLOCK_SIZE);

while (!DrapeauEnvoiSPIkv10) {};

}
//end for(;;)

//Events.c

/*
===================================================================*/

void
SPI_KV10_OnBlockSent(LDD_TUserData*UserDataPtr)

{DrapeauEnvoiSPIkv10 = TRUE; /* Set Data Sent flag */

}

void
SPI_KV10_OnError(LDD_TUserData*UserDataPtr)

{

Erreur = SPI_KV10_GetError(Pointeur_SPI_KV10, (LDD_SPIMASTER_TError*)&ComError);

}

Re: NO signal on SPI_SOUT pin.

Hui_Ma — Wed, 10 Aug 2016 04:20:48 GMT

The MKV10Z32LC7 product PTC6 and PTC7 pins are true open drain pins. These pins cannot drive a logic one without a pull-up resistor.

So, customer need to use external pull-up resistor (typical 10Kohm) connect with PTC6 and PTC7, if using both pins as SPI function.

Wish it helps.

Have a great day,
Ma Hui
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topic NO signal on SPI_SOUT pin. in Kinetis Microcontrollers

NO signal on SPI_SOUT pin.

Re: NO signal on SPI_SOUT pin.