topic Re: FRDM KE02Z SPI example in Kinetis Microcontrollers

FRDM KE02Z SPI example

CitRam — Mon, 02 Nov 2020 12:59:35 GMT

Hi to All

I'm learning to write code for FRDM KE02Z. I want to send 8bits words via SPI.

I have created project, with Processor Expert have created and configurated SM1:SPIMaster_LDD.

And I don't know what code to write for sending 8bit word via SPI in ProcessorExpert.c or Events.c?

I think I have to use the SM1_SendBlock(); in ProcessorExpert.c, but don't know what arguments need to use.

I think must be something like

if(SM1_GetBlockSentStatus = false)
{
SM_SendBlock(,00110111);
}

Could you help me please.

Re: FRDM KE02Z SPI example

BlackNight — Mon, 13 Jan 2014 08:57:32 GMT

Hi,

you might have a look at this project:

FRDM with Arduino Ethernet Shield R3, Part 2: Ping

It is using SPI to communicate with the W5100.

Re: FRDM KE02Z SPI example

CitRam — Mon, 13 Jan 2014 09:28:52 GMT

Thenk you Erich for you answer. I have watched your projects before, in particular W5100 project. But you use FreeRTOS in W5100 project, I have not any experience with any RTOS.

Re: FRDM KE02Z SPI example

BlackNight — Mon, 13 Jan 2014 10:20:06 GMT

The SPI with the W5100 can run with or without RTOS. The only thing which is RTOS specific in this driver is to get a semaphore/lock. Don't use that, and you have what you need.

Re: FRDM KE02Z SPI example

Robin_Shen — Tue, 14 Jan 2014 01:30:42 GMT

Have you read the Typical Usage of SPIMaster_LDD ?

There are two Typical Usage what can show you how to use this SPIMaster_LDD.

You just need to do according to them.

Hope that help.

Best Regards

Binbin

Re: FRDM KE02Z SPI example

CitRam — Fri, 24 Jan 2014 10:52:09 GMT

Thank you Robin and Erich.

I've made as adviced Robin, by Help on component. But, I'm sorry, i woluld like send binary word, for example write 11110111, and get from MOSI 11110111, not characters. Becuse in my task eighth bit must be parity bit. I already tried use parity bit set in Component Inspector/SPI0/Atribute Set List, but KE02 doesen't support SPI pairty bit.

Could you advice me how should I change the subroutine for ability writing binary word not ASCII characters

#define BLOCK_SIZE 4
uint8_t OutData[BLOCK_SIZE] = "FF";
uint8_t InpData[BLOCK_SIZE];
volatile LDD_SPIMASTER_TError ComError = 0U;
LDD_TError Error;
LDD_TDeviceData *MySPIPtr;

int main(void)

{
PE_low_level_init();


MySPIPtr = SM1_Init(NULL);                              /* Initialization of SM1 component */


while(1){
  Error = SM1_ReceiveBlock(MySPIPtr, InpData, BLOCK_SIZE);  /* Request data block reception */
  Error = SM1_SendBlock(MySPIPtr, OutData, BLOCK_SIZE);    /* Start transmission/reception */
    while (!SM1_GetBlockReceivedStatus(MySPIPtr)) {          /* Wait until data block is transmitted/received */
  SM1_Main(MySPIPtr);
  }
}
#ifdef PEX_RTOS_START
    PEX_RTOS_START();                  /* Startup of the selected RTOS. Macro is defined by the RTOS component. */
  #endif
for(;;){}

}