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Altera_Forum's avatar
Altera_Forum
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20 years ago

interrupt handling for UART

hello everyone. I am trying to send and receive data between UART on UP3 and hyperterminal. But am not able to set the interrupts properly and as a result my program goes in an infinite loop. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Hey all,

Here is some working code for an UART RX interrupt:

A interrupt function which takes the data from the serial port

(and put it into for example in a char array)

void UartReceiver1(void * content,alt_u32 id)

{

// get the uart data

unsigned char * UartData = (unsigned char*)(UART1_BASE);

// UART1_BASE is defined in system.h

}

}

Setting up the interrupt:

// UART1 interrupt routine declaration

alt_irq_register(UART1_IRQ,NULL,UartReceiver1);

IOWR_ALTERA_AVALON_UART_CONTROL(UART1_BASE, 0x80);

Kind regards

Karel