PB with SPI with 18F26K40

[cvoisin2003]

Hi,

Now i use a PIC18F26K40 to pilot with the SPI bus a 8x7segs with Maxim 7219 driver.

With Software_SPI library all work fine.

With SPI_Remappable library nothing append. With a scope on SDO or CLK no signal appeared ?
Is this library working with 18F26K40 ?

Please, do you have a mostly recently sample of SPI program for mikroBasic Pro ?

Thank in advance and Happy Holidays

[jovana.medakovic]

Hello,

The PPS Lock bit in config has to be set to Allow multiple reconfigurations.
Also, you need to map Serial Clock as input and output.

Can you zip and send me your project for review?

Kind regards,
Jovana

[cvoisin2003]

Hi,

I modify PPS lock bit to multiple reconfiguration but no result.
You can find the project in file attachment.

Regards,

Christophe

[jovana.medakovic]

Hi Christophe,

I apologize for the delayed answer.

In the attachment, you can find the corrected project. Let me know if it works.

Kind regards,
Jovana

[cvoisin2003]

Hi Jovana,

Thank you for your time.

I am disapointed because the code not working and i would like to solve my problem.

All segments are light on but nothing append after reboot. After i am trying the softcode and all working fine ?

Regards

Christophe

[cvoisin2003]

Hi,

Now all is working fine.

Solution :

1) PPS define need to be change because SPI output is RC4.
2) Clock to manage SPI need to be : FOSC/64.

Last question before close this subject : Can you send me an update of PPS library with correct input and output constant value to those contained in your response (constant like _SDO1_SDA1, _SCK1_SCL1; ...)

Many thanks.

Christophe

[jovana.medakovic]

Hello,

Can you tell me which version of the compiler you are using?
On the following link, you can find the latest version where you should have these constants:
https://download.mikroe.com/setups/comp ... p-v760.zip

Kind regards,
Jovana

[cvoisin2003]

Hi,

I am using PICBASIC Version 7.6

Regards,

Christophe

[cvoisin2003]

Hi Jovana,

Now, i use PIC18F27K42 instead of PIC18F26K40 and i would like to run the same program but i have a problem with PPS output mapping. I have no problem for INPUT mapping.

I hope mapping my SPI module like this :

Unlock_IOLOCK()
PPS_Mapping(_RC3, _OUTPUT, ?SCK?)
PPS_Mapping(_RC2, _INPUT, SPI1SDIPPS)
PPS_Mapping(_RC4, _OUTPUT, ?SDO?)
Lock_IOLOCK()

Can you help me ?

Regards

Christophe

[cvoisin2003]

Hi Jovana,

This morning with clear ideas, I found the information I was looking for:

Unlock_IOLOCK ()
RC3PPS =% 011110 'SCK
RC4PPS =% 011111 'SDO
PPS_Mapping (_RC2, _INPUT, SPI1SDIPPS)
Lock_IOLOCK ()

Sorry for the inconvenience

Regards

Christophe

[jovana.medakovic]

Hello,

You also can try on this way:

Unlock_IOLOCK()
PPS_Mapping(_RC3, _OUTPUT, _SCK1)
PPS_Mapping(_RC2, _INPUT, _SDI1)
PPS_Mapping(_RC4, _OUTPUT, _SDO1)
Lock_IOLOCK()

Kind regards,
Jovana

[cvoisin2003]

Hi Jovana,

Yes, it is more simple like this !

Thanks, have a good day

Christophe