topic Re: LPC54616 USART-LIN MODE in MCX Microcontrollers

LPC54616 USART-LIN MODE

Cherrin — Thu, 12 Sep 2024 06:31:05 GMT

I have programmed according to the way of generating break signal provided by the manual, but it seems that the signal cannot be generated successfully. I request to provide the sample code of usart0 sending messages in lin mode (including initial configuration).

Re: LPC54616 USART-LIN MODE

xiangjun_rong — Fri, 13 Sep 2024 09:51:44 GMT

Hi,

It appears that your code has issue.

Pls refer to section 25.7.9 for break generation.

void Lin_SendBreak(void)

{

//set the Lin mode

UART0-CFG|=1<<8;

//send break

USRT0->CTRL|=1<<1;

while(USRT0->CTRL&0x02) {}

}

Pls have a try.

XiangJun Rong

Re: LPC54616 USART-LIN MODE

Cherrin — Sat, 14 Sep 2024 01:19:06 GMT

your CTRL（BIT 1）not need to clear？the usermenu say the send break until the bit clear。

Re: LPC54616 USART-LIN MODE

xiangjun_rong — Thu, 19 Sep 2024 01:27:23 GMT

Hi,

The usermenu say the send break until the bit clear, so I use the following code to poll the bit 1 until it is cleared.

USRT0->CTRL|=1<<1;

while(USRT0->CTRL&0x02) {}

XiangJun Rong