topic Re: UART for communication in Kinetis Microcontrollers

UART for communication

arbnorzeqiri — Mon, 10 Jun 2013 12:42:38 GMT

Hi all,

I'm new to Kinetis MCUs and I want to know how to work with UART, does it have any library for that ?

p.s. My MCU is MKL05Z

Re: UART for communication

martynhunt — Tue, 11 Jun 2013 15:48:49 GMT

Hi Arbnor,

You can find some sample code for the KL05 on the following web page: KL05-SC

The download you are looking for is KL05-SC. Inside there should be an IAR project that uses UART and I2C.

Also, the reference manual has a description of all the UART registers. You can find it and other documentation here: KL0 Documentation

Let me know if you have any questions.

Regards,

Martyn

Re: UART for communication

pradyumnakammar — Thu, 25 Jul 2013 13:07:21 GMT

martynhunt

im new to Kinetis L 05 MCUs can you give me examles ti use UART intrrupt for communication serially ?? i have referred KL05-SC n used polling method

i want to use the interrupt method during wake up (MCU waking from LLWU pin) then reconfig to polling type

when i tried to do the above at the later part when its waiting in a while loop @ while(!(UART_S1_REG(channel) & UART0_S1_RDRF_MASK));it goes to hard fault

i dont know how to solve ... need assistance

regards

Pradyumna

Re: UART for communication

martynhunt — Tue, 30 Jul 2013 13:56:28 GMT

Hi Pradyumna,

Have you made sure that the UART0 clock is enabled by setting SIM_SCGC4[UART0] = 1. Also, what clock source are you using for UART0? (SIM_SOPT2[UART0SRC]).

Best regards,

Martyn

Re: UART for communication

pradyumnakammar — Wed, 21 Aug 2013 11:24:33 GMT

Thank you Martyn ... UART0 clock was not the problem i had not disabled one of the interrupts which was interfering.