Kinetis MicrocontrollersのトピックRe: Transmission not happening in UART

Transmission not happening in UART

chandrasekhar — Tue, 26 Nov 2013 10:12:29 GMT

Hello,

Hello I am using UART0 in my code. When I run the code it is not transmitting any data to UART0 instead it reaches to default handler function given below and suspends?

And also I am not using any interrupts also.

void Default_Handler()

{

__asm("bkpt");

}

can anyone please help me in this?

Original Attachment has been moved to: UART0.c.txt.zip

Re: Transmission not happening in UART

chandrasekarkan — Tue, 26 Nov 2013 10:32:04 GMT

Are you using MQX RTOS?... then,

1. go to installed MQX directory/config/yourBoard

2. open userconfig.h, enable BSPCFG_ENABLE_ITTYA and rebuild the BSP library.

3. In your code,

MQX_FILE_PTR serPort = fopen("ittya:", NULL);

to initialize UART0.

4. then write( serPort, "Hello", 5); will send "Hello" via. serial port.

Re: Transmission not happening in UART

chandrasekhar — Tue, 26 Nov 2013 10:57:27 GMT

Hi,

Sorry for my incomplete question. Iam not using MQX. I am using baremetal only. In my code also I am using polling based. Anyways I solved the above issue.

I gave the clock settings before multiplexing the pin and it resolved. previously I am enabling the clock after multiplexing the pin. Thank you for quick reply.