S12ZVC SCI

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

S12ZVC SCI

1,004 Views
marslin
Contributor I

There are 2 SCI in 12ZVC(48pin). I assign RXD0/TXD0 but can not assign another RXD1/TXD1.

圖片1.png

Labels (1)
Tags (1)
7 Replies

593 Views
aaronlee
Contributor V

Hi,

Why does my manual only 1 SCI on S12ZVCA(48-pin)?

pastedImage_2.png

Best Regards,

Aaron

0 Kudos

593 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hi Aaron,

You are referring to an outdated version of the RM.

pastedImage_1.png

Regards,

Daniel

593 Views
aaronlee
Contributor V

Hi Daniel,

It's a good news. Thank you.

Best Regards,

Aaron

0 Kudos

593 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hi,

Did you routed SCI1 to the port (SCI1RR)?

Regards,

Daniel

0 Kudos

593 Views
marslin
Contributor I

Daniel ,

I mean I can't  assign the SCI1 via CodeWarrior Development Studio. There is no SCI1 can be selected.

456.png

0 Kudos

593 Views
danielmartynek
NXP TechSupport
NXP TechSupport

Hi,

I had to edit this answer, because I cannot asign the SCI1 either on S12ZVC 48-pin package.

The problem has been reported, it should be fixed.

I must have checked 64-pin version instead.

Sorry for the misleading information.

Regards,

Daniel

0 Kudos

593 Views
RadekS
NXP Employee
NXP Employee

Hi Mars,

The SCI1 at PT0, PT1 pins have the highest priority. So, there should not be any problem with different functions assigned to these pins.

 

I suppose that issue may be in the code for writing to the MODRR0 register.

This register may be written just once in normal mode. Therefore, you must write complete configuration in a single command.

Correct approach:

MODRR0 = 0x30;

Wrong approach:

MODRR0_SCI0 = 1;
MODRR0_SCI1 = 1;
//…

I hope it helps you.

Have a great day,
Radek

-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------