Soft_UART_Init problem

[tek66tim]

Hi,

I'm new to the MikroC AVR compiler. I have a problem with Soft_UART_Init. If I write Soft_UART_Init(&PORTE, 1, 0, 115200, 0) I get "Undeclared identifier PORTE in expression" is there an include I'm missing or something?

I have checked the checkbox next to the soft uart library. I'm using an Xmega part.

Thanks
Tim

[aleksa.jovanovic]

Could you post your project in a zipped file?

Best regards,
Aleksa

[tek66tim]

Hi Aleksa,

Unfortunately I can not post my project, the code is proprietary to my customer and I had to sign an NDA to consult on this project. The problem is simply that the compiler MikroC PRO AVR is choking on Soft_UART_Init(&PORTE, 1, 0, 115200, 0).

I get the error "undeclared identifier PORTE in expression"

I'm using the ATxmega128D chip. I have looked at the ATxmega128d.c file and can find no definition for PORTE (I'm assuming that's my problem). Does some kind of definition (code of some kind) need to be added to the ATxmega128d.c file for your built in functions for software uart to work on the xmega chip?

Thanks,
Tim

[aleksa.jovanovic]

Could you write a small example demonstrating this event?

Best regards,
Aleksa

[tek66tim]

OK. The hardware uart works fine. The compiler chokes on Soft_UART_Init(&PORTE, 1, 0, 115200, 0); with "undeclared identifier PORTE in expression".

I'm using the ATxmega128d3 chip.

I have the following libraries checked
C_math
C_type
EEPROM
PrintOut
SoftwareUART
TWI
UART

Code: Select all

void setupClock();
void printHandler(char c);


void main() 
{
	setupClock();
	UARTD0_Init(115200);
	Soft_UART_Init(&PORTE, 1, 0, 115200, 0);   
	
	do
	{
		printOut(printHandler, "hello\r\n");
		Soft_UART_Write('C');
		Delay_ms(500);
	}
	while(1);
}

void setupClock()
{
	OSC_CTRL = 0x02;
	while(RC32MRDY_bit = 0);
	
	CPU_CCP = 0xD8;
	CLK_PSCTRL = 0;

	CPU_CCP = 0xD8;
	CLK_CTRL = 1;
	
	DFLLRC32M_CTRL = 1;
}

void printHandler(char c)
{
	UARTD0_Write(c);
}

[aleksa.jovanovic]

Hi,

Please place the mlk file from the attachment to Mikroelektronika>mikroC PRO for AVR>Uses

It is modified so the init looks like this
Soft_UART_Init(&PORTD_IN, &PORTD_OUT, 2, 3, 14400,0);
So one is declared as input and the other as output

The baud rate should be 14400 because some issues arise from using another baud rate.

These modifications will be forwarded to our software department and implemented on the future upgrade.

Best regards,
Aleksa

[tek66tim]

Aleksa,

I'll give it a try. Is 14400 the highest baud rate, even with no interrupts enabled in the rest of my code and the processor core clock running at 32MHz?

Thanks,
Tim

[aleksa.jovanovic]

You can try to go higher, but I've gone up until it started working correctly.

Best regards,
Aleksa