Getting data using Uart on Mc9s08mp16

abhisheksaxena — Wed, 30 Dec 2015 11:53:48 GMT

Hello guys,

I am working with Mc9s08mp16 processor for controlling BLDC motor and in that process I want to get some parameters of BLDC out from the board.I am hoping that there is a way to get data through UART communication.

Any tutorials/documentation on how to accomplish that are appreciated.

Thank you in advance for your time.

Re: Getting data using Uart on Mc9s08mp16

vicentegomez — Mon, 04 Jan 2016 19:02:08 GMT

Hi Abhishek

to set the SCI you need to use the following register

// Following a reset, BUSCLK ~ 4.20MHz

SCIBD = 27; // SCI baud rate = 4.20MHz/(16*27)=9722 bps

SCIC1 = 0; //default settings

//enable transmitter and receiver pins, enables receiver interrupt

SCIC2 = SCIC2_TE_MASK | SCIC2_RE_MASK | SCIC2_RIE_MASK;

Just check the bus clock that you has, in order to set the SCIBD

this is sample for and interrupt

interrupt VectorNumber_Vscirx void SCIRX_ISR(void)

{

unsigned char u8receiver;

(void) SCIS1; // read SCIS1 register for clear RDRE flag

u8receiver = SCID;

SCID = u8receiver;

}

I hope this will help you

Regards

Vicente Gomez

8-bit MicrocontrollersのトピックRe: Getting data using Uart on Mc9s08mp16

Getting data using Uart on Mc9s08mp16

Re: Getting data using Uart on Mc9s08mp16