Hello andyknitt,
The short answer is that the data is automatically generated from a specific document, and that instance with the corresponding pins are not present there. Now for the longer answer:
Firstly I would like to go into some details about how we get the data that is displayed for the pin information in every block from our toolbox - we parse the S32K14x_IO_Signal_Description.xls document that comes with S32K-RM.pdf [available here]. We then save the data that we need from those documents in some .mat files. We then split them (by pin functionality). All this process is automated and based on what data is available in the Signal Description document provided. I have checked this document, and there seems to be no LPUART2 instance - this is the reason why it doesn't appear in the pin list for the configuration block of LPUART. Do you have other schematic/RM for S32K142? If yes, can you tell me what version? And what revision of the S32K142? b14714 do you have any insight regarding this matter?
Secondly, after explaining how the pin information is generated and displayed, I'd like to explain a mechanism for adding any extra pin you might want - with the mention that you'll have to make sure that what you are adding is in sync with the hardware you are using.
If you go to {ROOT_TBX_DIR}\mbdtbx_s32k\devices\S32K142\signal_description you can find all the .mat files used for pin information management. You can manually edit each of these. For functionality only, you can edit the first 4 columns - e.g.:
[Port Name] [Pin number] [Mux selection] [Port instance]
PORTB 5 PORT_MUX_ALT2 PTB
(The other columns are for extra information - displaying purposes.) After editing this .mat file and adding what entry you need, save it with the same name as it was. For all these operations, you can use the load and save MATLAB functions - e.g.:
var_name = load('C:\....\devices\S32K142\signal_description\LPUART0_RX.mat');
var_name.to_load{1}{1} = 'PORTD';
var_name.to_load{1}{2} = '7';
var_name.to_load{1}{3} = 'PORT_MUX_ALT4';
var_name.to_load{1}{4} = 'PTD';
save(''C:\....\devices\S32K142\signal_description\LPUART0_RX.mat', 'var_name');
In this example we've added PTD7 as another pin option for LPUART0_RX. With this in mind, you can enable any pin you want for any instance, if that instance exists. If it does not - as in your example - you'll have to do one more step: add a .mat with the instance name in {ROOT_TBX_DIR}\mbdtbx_s32k\devices\S32K142 - e.g.: add LPUART2.mat
here - just an empty file would be enough. After this, you can copy a LPUART0_RX.mat file and rename it as LPUART2_RX.mat, then do the changes as explained above - this way you can add a new instance & the pin information you want to add.
Best regards,
Razvan.
