PIC24FJ256GA406 SPI Channel4 Different

[seokgi]

Hello everybody!

I designed to use SPI by referring to the PIC24FJ256GA406 manual. The pin definition of SPI channel4 and FC8 are different in the manual. MISO and MOSI have been changed. My PCB is already made.

Is there any way to solve this?

[stefan.erni]

Hi Seokgi

You can use the SPI in softwaremode. In this mode you can change the pin mosi and miso.
Can you post the schema of the hardware (part from the SPI) and maybe your software.

a little tip:

On the hardware, on a free place 4 whole to cross .....

regards

Stefan

spi.PNG (254.67 KiB) Viewed 1508 times

[Benj]

Hello,

Looking at the datasheet for the PIC24FJ256GA406 we have these pin connections.

Pin1.jpg (38.8 KiB) Viewed 1498 times

They look to match the settings in Flowcode.

Pin2.jpg (10.72 KiB) Viewed 1498 times

I've looked and the other SPI channels cannot be reconfigured for these same pins so it looks like there aren't any software options for using a hardware SPI channel. One option is to cut the existing traces and manually swap the traces using link wire.

As Stefan says, software mode may be a better option for you.