KL82 UART Code Example

[us1]

Hello,

is there some Examplecode for the KL82 Board to get the UART working?

Is there a direct example from someone which used the ESP8266 with it?

Would appreceate any help,

thank you very much

[us1]

I created now two things:

I send a AT Command to UART via: LPUART_WriteBlocking(DEMO_LPUART, "AT\r\n", sizeof("AT\r\n")-1);

when I do the same with a function like this:

   void uart_esp12_send_command (char* esp_command)
            {
                LPUART_WriteBlocking(DEMO_LPUART, esp_command, sizeof(esp_command)-1);

            }

and then

uart_esp12_send_command ("AT-Command");

I only get with the function three letters displayed on the Serial Consol, but the normal Command ( LPUART_WriteBlocking(DEMO_LPUART, "AT\r\n", sizeof("AT\r\n")-1)) gives back the full entered string.

How can I change this? I need to change the data type.

How could I receive data strings with: LPUART_ReadBlocking(LPUART_Type *base, uint8_t *data, size_t length);??

[us1]

Hi,

thank you.

I downloaded the SDK for the kl82 but what do I do with the *.zip! file? Extract or add in the Kinetis design studio, tried but it does somehow not work both ways...

[jeremyzhou]

Hi Ulrich,

Thanks for your reply.

Firstly, you should extract it, then get start with the KSDK V2.0 by referring to the attachment.
Have a great day,
Ping

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[us1]

HI,

thank you. where Can I find the uart example?

thank you

[jeremyzhou]

Hi Ulrich,

Thanks for your reply.

The LPUART demo resides in the \SDK_2.0_MKL82Z128xxx7\boards\frdmkl82z\driver_examples which as the Fig 1 shows.

Fig 1

Have a great day,
Ping

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[us1]

Thank you very much,

but I can't really understand this example, it's to hard to understand.

Is there some code for receiving strings?

Thank you a lot

[jeremyzhou]

Hi Ulrich,

Thanks for your reply.

The SDK development kit is the first option for the customer to get start with the Kinetis MCU.

And I'd like to know what the codes confuse you, you can share them with the screenshot.

I'm looking forward to your reply.
Have a great day,
Ping

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[us1]

Hi,

thank you for your kind help.

Well, I need to write and read string to/from the uart.

I can't see how I can write to the uart register. this would be interessting to know and which configurations are needed to get it working barebone. Or could you explain how I could use the functions from the libs?

thank you

[jeremyzhou]

Hi Ulrich Steinlehner,

I'd highly recommend you to refer to the KSDK v2.0 which includes the some demos of the UART module.

Software Development Kit for Kinetis MCUs|NXP
Have a great day,
Ping

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