industrialNETworX

Hi,

I use the following code to read out address 0 at memory page 0:

// Flash Zelle 0 auslesen

 INIT_SPI();

 CS_SELECT(0);

 POKE(NETX_SPI_DATA, (0x52 | MSK_NETX_SPI_DATA_dr_valid0));

 POKE(NETX_SPI_DATA, (0x00 | MSK_NETX_SPI_DATA_dr_valid0));

 POKE(NETX_SPI_DATA, (0x00 | MSK_NETX_SPI_DATA_dr_valid0));

 POKE(NETX_SPI_DATA, (0x00 | MSK_NETX_SPI_DATA_dr_valid0));

 

 POKE(NETX_SPI_DATA, (0x00 | MSK_NETX_SPI_DATA_dr_valid0));

 POKE(NETX_SPI_DATA, (0x00 | MSK_NETX_SPI_DATA_dr_valid0));

 POKE(NETX_SPI_DATA, (0x00 | MSK_NETX_SPI_DATA_dr_valid0));

 val=SPI_Master_Exchange_Byte(0x00);

 val=SPI_Master_Read_Byte();

 CS_DESELECT(0);

TLR_VOID INIT_SPI()

{

 TLR_UINT32 uvalue;   

     

 uvalue=PEEK(NETX_SPI_CTRL);

 POKE(NETX_SPI_CTRL,uvalue|0xE02000D6); //10 MHz Read/Write Enable

                                        //SPI Interface enable

                                        //Master Mode

                                        //Falling edge of SPI_SCK is primary 

}    

TLR_VOID CS_SELECT(TLR_UINT8 device)

{

 TLR_UINT32 uvalue;  

 uvalue=PEEK(NETX_SPI_CTRL); 

 switch (device)

 {

  case 0x00:  

   POKE(NETX_SPI_CTRL,uvalue|0x00000100);   

  break;

  case 0x01:  

   POKE(NETX_SPI_CTRL,uvalue|0x00000200);   

  break;

  case 0x02:  

   POKE(NETX_SPI_CTRL,uvalue|0x00000400);   

  break;

 } 

}    

TLR_VOID CS_DESELECT(TLR_UINT8 device)

{

 TLR_UINT32 uvalue;  

 uvalue=PEEK(NETX_SPI_CTRL); 

 switch (device)

 {

  case 0x00:  

   POKE(NETX_SPI_CTRL,uvalue&0xFFFFFEFF);   

  break;

  case 0x01:  

   POKE(NETX_SPI_CTRL,uvalue&0xFFFFFDFF);   

  break;

  case 0x02:  

   POKE(NETX_SPI_CTRL,uvalue&0xFFFFFBFF);   

  break;

 } 

}    

unsigned char SPI_Master_Exchange_Byte(unsigned char bChar)

{

  unsigned long  ulFillLevel;

  POKE(NETX_SPI_DATA, (bChar | MSK_NETX_SPI_DATA_dr_valid0));

    

  /* wait for transfer cycle to be finished */

  do 

  {

    ulFillLevel = ((PEEK(NETX_SPI_STAT) & MSK_NETX_SPI_STAT_SR_out_fuel_val) 

                               >> SRT_NETX_SPI_STAT_SR_out_fuel_val);

  } while (ulFillLevel != 0);

  return (PEEK(NETX_SPI_DATA) & 0xff);

}

unsigned char SPI_Master_Read_Byte()

{

 unsigned long  ulFillLevel; 

 unsigned char  value;

 /* wait for read cycle to be finished */

  do 

  {

    ulFillLevel = ((PEEK(NETX_SPI_STAT) & MSK_NETX_SPI_STAT_SR_in_fuel_val) 

                               >> SRT_NETX_SPI_STAT_SR_in_fuel_val);

    if (ulFillLevel>0)

     value=PEEK(NETX_SPI_DATA);                           

  } while (ulFillLevel != 0);   

 return (PEEK(NETX_SPI_DATA));   

}    

I dont get any data from the SPI Flash !.

What is wrong in this code snippset ?

Br,
Rainer

Hi AJ,

Thank you for your help, but i dont find anything about SPI Register.

Can i see how the DRV_SFLReadFlash() function is programmed ? The function must use the SPI Register, or not ?

Br,
Rainer

Hi AJ,

Sorry but i dont find anything about SPI Register.
I have downloaded the file muhkuh_1.0.229.tar and muhkuh_1.0.228.0_setup.

Is this the file do you mean ?
Can you give me a tip where i can find the stuff ?

Br,
Rainer