HOW TO COMPLETE THE ARGUMENTS OF A GENERATED FONCTION ?

[robert2000]

/* I Use for the Fist time KDSK with Processor Expert. I was able to easily create a project, create and configure LDD Component, Generated software,built the project, define and use new fonction, use generated events files

   BUT I D'ONT UNDERSTAND HOW TO COMPLETE THE ARGUMENTS OF A GENERATED FONCTION.

For exemple I create a Master SPI LDD COmponent called My_SPI and I try to use the generated fileMy_SPI_SendBlock(); Below are 4 diefferents Try all Wrong.

   */

#ifdef MY_SPI_TRY1

/*Fonction is copy and paste from file My_SPI.h*/

** ===================================================================

** Method : My_SPI_SendBlock (component SPIMaster_LDD)

*/

/*!

** @brief

** This method sends a block of characters. The method returns

** ERR_BUSY when the previous block transmission is not

** completed. The method <CancelBlockTransmission> can be used

** to cancel a transmit operation.

** @param

** DeviceDataPtr - Device data structure

** pointer returned by <Init> method.

** @param

** BufferPtr - Pointer to the block of data

** to send.

** @param

** Size - Number of characters in the buffer.

** @return

** - Error code, possible codes:

** ERR_OK - OK

** ERR_SPEED - This device does not work in

** the active clock configuration

** ERR_DISABLED - Component is disabled

** ERR_BUSY - The previous transmit request is

** pending

*/

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

uint16_t Size=3;

LDD_TError My_SPI_SendBlock(LDD_TDeviceData *DeviceDataPtr, LDD_TData *Com_depart_SPIPtr, uint16_t Size);

/*1) This Solution is accepted by the build Project Process but looks like a new protype and not a parameter allocation */

#endif // MY_SPI_TRY1

#ifdef MY_SPI_TRY2

/*Fonction is copy and paste from file My_SPI.h*/

uint16_t Size=3;

LDD_TError My_SPI_SendBlock(LDD_TDeviceData *DeviceDataPtr, LDD_TData *Com_depart_SPI[0]Ptr, uint16_t Size);

/*2) This Solution is rejected by the build Project Process: expected ';', ',' or ')' */

#endif // MY_SPI_TRY2

#ifdef MY_SPI_TRY3

/*Fonction is copy and paste from file My_SPI.h*/

LDD_TError My_SPI_SendBlock(#ifdef MY_SPI_TRY3

LDD_TError My_SPI_SendBlock(LDD_TDeviceData *DeviceDataPtr, LDD_TData *Com_depart_SPIPtr, 3);

   /*3) This Solution is rejected by the build Project Process: expected declaration specifiers or '...' before numeric constant */

#endif // MY_SPI_TRY3);

#ifdef MY_SPI_TRY4

/*Fonction is drag from Component file My_SPI:SPIMaster_LDD*/

My_SPI_SendBlock(LDD_TDeviceData *DeviceDataPtr, LDD_TData *Com_depart_SPIPtr, 3);

/*4) This Solution is rejected by the build Project Process:

expected expression before 'LDD_TDeviceData'

too few arguments to function 'My_SPI_SendBlock' */

#endif // MY_SPI_TRY4

  /* I find out no documentation to explain how to use these parameters. Could somebody help me. Thanks a lot .Robert */

[adriancano · Accepted solution]

Hi,

It seems that you are using an LDD component driver and not and KSDK driver.

These components use the Processor Expert drivers known as LDD; commonly these drivers has the same structure, when are for Communication peripheral components such as SPI, UART or I2C. The common function looks like:

Function_to_send_data(LDD_TDeviceData *DeviceDataPtr, LDD_TData *BufferPtr, uint16_t Size)

where the parameters are:

• DeviceDataPtr: Pointer to LDD_TDeviceData - Device data structure pointer returned by Init method.

• BufferPtr: Pointer to LDD_TData - Pointer to the block of data to send.

• Size:uint16_t - Number of characters in the buffer.

Here is an example of the typical usage of this function:

• Declare a LDD_TDeviceData pointer:

          LDD_TDeviceData *MySPIPtr;

• Declare the out data buffer, this is the buffer sent by the function: (in this case the buffer is size=4)

          uint8_t OutData[4] = "0123";

• Declare size variable, or a #define

          uint8_t size = 4;          or          #define SIZE 4

• In your main code you need to call firs the init function that will return the pointer to your device:

          MySPIPtr = SM1_Init(NULL);

• Use the function as follows:

          SM1_SendBlock(MySPIPtr, OutData, SIZE);

If you have installed KDS v1.1.1 you can find the Component User Guide under this path:

<install_folder>\KDS_1.1.1\eclipse\ProcessorExpert\Help\ComponentUserGuides

There you can find a document for each LDD component including typical usage examples.

I hope this information can help you.

Regards,

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[robert2000]

Hi, thanks a lot. Extremely clear.

Just a side question : Yes I am using an LDD component driver and not and KSDK driver.But what do you means by using the KSDK driver.

Is it using an OS Component like MQXlite for exemple ?

Best Regards

[adriancano]

Hi,

Have a look at this conversation, it would probably solves your queries.

SDK vs PDD(without SDK)

Best Regards,

Adrian