SPI transfer with a KL03

[javierhernande1]

Hello,

I need to perform a SPI communication with a slave device with a KL03 mcu.

I need to adjust 3 register.

First step is programming 0xF register as 0x000000 for reset, the delay 300ms.

Second step is programming 0x1 register as 0x45E15 then delay 30ms

Last step is programming 0x3 register as 0x0FFDC

I need to perform 3 txTranfers? or is possible in one transfer?

And, Is there any function to wait on ms?

Best regards

printf("\n\r SPI Master Start...\n\r");
 /*
 * userConfig.enableStopInWaitMode = false;
 * userConfig.polarity = kSPI_ClockPolarityActiveHigh;
 * userConfig.phase = kSPI_ClockPhaseFirstEdge;
 * userConfig.direction = kSPI_MsbFirst;
 * userConfig.dataMode = kSPI_8BitMode;
 * userConfig.txWatermark = kSPI_TxFifoOneHalfEmpty;
 * userConfig.rxWatermark = kSPI_RxFifoOneHalfFull;
 * userConfig.pinMode = kSPI_PinModeNormal;
 * userConfig.outputMode = kSPI_SlaveSelectAutomaticOutput;
 * userConfig.baudRate_Bps = 500000U;
 */
 SPI_MasterGetDefaultConfig(&userConfig);
 srcFreq = SPI_MASTER_CLK_FREQ;
 SPI_MasterInit(SPI_MASTER, &userConfig, srcFreq);
/* Init Buffer*/
 for (i = 0; i < BUFFER_SPI; i++)
 {
 srcBuff[i] = i;
 }
/*Start Transfer*/
 xfer.txData = srcBuff;
 xfer.dataSize = BUFFER_SIZE;
 SPI_MasterTransferBlocking(SPI_MASTER, &xfer);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[nxf56274 · Accepted solution]

Hi,

You can use "nop" to write a delay function by yourself. You should perform three transfers

Have a great day,
TIC

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