ST10F276 pb with XASC

p-alain · ‎2007-05-03

Posted on May 03, 2007 at 13:33

p-alain · ‎2005-06-28

Posted on June 29, 2005 at 08:16

I have a ST10F276-CAA with Keil.

I try to use the XASC. Here you can see my configuration.

The pb is that I have no Serial tansmit interrupt (0x42), when i execute

XS1TBUF = c; .

I able to simulate it with the debuger : Peripherals --> Interrupt system --> XP2INT clic on request.

In the Startup :

XPERCON = 0x06DC // I have verify vith the debuger

Here is the configuration of the XASC :

XS1PORT = 0x0018;

XS1CON = 0x8011;

XS1CONSET = 0x8011;

// receive on XP1IC

XIR1SEL =0x8000;

XP1IC = (0X0005<

// transmit on XP2IC

XIR2SEL =0x2000;

XP2IC = (0x0005<

XP1IE = 1;

XP2IE = 1;

void serial_transmit_1 (void) interrupt 0x42

{

}

Could somebody help me.

Thank you.

p-alain · ‎2005-06-30

Posted on June 30, 2005 at 13:54

Thank you but teh pb isn't solved.

when I wright XP2IR = 1, I jump in the interrupt (0x42). But the instruction XS1TBUF = c (c is a char) generate any XP2 interrupt request.

Until to now, I haven't try this soft on the target, I use the keil debuger. Do you think that the pb come from the debuger ?

regards,

najoua · ‎2005-06-30

Posted on June 30, 2005 at 14:59

Hello Pierrot,

It is easy to adapt the software code to the Keil tool, just:

- change the ''interrupt( 0x42) void xasc_transmit(void)'' by

'' void xasc_transmit(void) interrupt (0x42)'' .

&&

- change main() by void main(void)

Now, you can try the soft on the target .

An other issue: in your own code, there is some thing missing: the baudrate definition (XS1BG register configuration).

Regards,

Najoua.

[ This message was edited by: Najoua on 30-06-2005 18:30 ]

rajiv · ‎2007-05-03

Posted on May 03, 2007 at 13:33

I had tested the example code provided by Neila. After the instruction XP2IR = 1; , i expected the control to jump to the ISR.

Instead it was spending the rest of its life in the infinite while loop.

After this i included an additonal statement of writing a character onto the XS1TBUF followed by a _nop_().

Now when i debug, After executing the statements:

XP2IR =1;

XS1TBUF = 'A';

_nop_();

Right after _nop_() is executed it jumps to the ISR. Thereafter the control wisely jumps into ISR as requd.

Can anyone explain this behaviour?

Iam using Keil uVision 3 & is using a DProbeST10 Emulator(with XPER derivative)

Thanks in advance,

Rajiv