topic Re: TRK-KEA128 LIN Master H/W Configuration in Kinetis Microcontrollers

TRK-KEA128 LIN Master H/W Configuration

ScottKerstein — Wed, 14 Jun 2017 20:15:48 GMT

Hello,

What's the recommended hardware configuration for getting the TRK-KEA128 to function as a LIN Master? I'm thinking R61 needs to be populated. I'm using example LIN Master code found in KEA128_LIN_Master folder C:\nxp\FSL_LIN_2.x_STACK_Package_4.5.9\Examples\Kinetis\KEA128. I'm not getting LIN Master communications with the board as shipped.

Thanks for your help, in advance.

Scott

Re: TRK-KEA128 LIN Master H/W Configuration

kerryzhou — Mon, 19 Jun 2017 05:18:07 GMT

Hello Scott Kerstein,

You can add the R61, or enable the internal pullup in PTB0 by configuring:

PORT_PUE0 |= 1<<8; // pullup is enabled for port B bit0.

Actually, we have test the LIN function between two TRK-KEA128, one is as master, another is as slave.

Master code is:

C:\nxp\FSL_LIN_2.x_STACK_Package_4.5.9\Examples\Kinetis\KEA128\KEA128_LIN_Master

Slave code is:

C:\nxp\FSL_LIN_2.x_STACK_Package_4.5.9\Examples\Kinetis\KEA128\KEA128_LIN_slave

You can use two TRK-KEA128, one is downloaded LIN master, anther is downloaded LIN slave, then test again.

Any question, just let me know!

Have a great day,
Kerry

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Re: TRK-KEA128 LIN Master H/W Configuration

madhusandeept — Wed, 21 Jun 2017 14:15:57 GMT

Hello Kerry,

We got the KEA board working with populated R84, R85, R61 and I enabled EN_LIN and WAKE_LIN from software.

I am trying to port the code to K66 controller. Is there any configuration I have to do in extra than for KEA128?

With K66:

With KEA128:

Re: TRK-KEA128 LIN Master H/W Configuration

kerryzhou — Thu, 22 Jun 2017 01:43:02 GMT

Hello Sandeep Thota,

About the K series LIN code, you can refer to this code:

https://community.nxp.com/servlet/JiveServlet/download/419100-1-277824/uart-val-code.7z.zip

Our AE team provided the UART validation code for your reference, which is for 120MHz part, but should be general across all K serials because UART modules are the same.

You can refer to the above validation code, it includes the LIN code.

Wish it helps you!

Have a great day,

Kerry