SPI transfer with a KL03

javierhernande1 — Tue, 26 Nov 2019 23:29:51 GMT

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);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Re: SPI transfer with a KL03

nxf56274 — Wed, 27 Nov 2019 02:13:44 GMT

Hi,

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

Have a great day,
TIC

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

topic SPI transfer with a KL03 in Kinetis Microcontrollers

SPI transfer with a KL03

Re: SPI transfer with a KL03