GIO interrupt Tms57004

Saharsh Bansal

Other Parts Discussed in Thread: HALCOGEN

Hello

I am trying to implement a gio interrupt on my TMS57004 board. i want a rising edge trigger which when recorded should make the onboard LED GIOA2 glow.

this is my code-

#include"gio.h"
#include "sys_common.h"

void main(void)
{
/* USER CODE BEGIN (3) */
gioInit();
_enable_IRQ();

gioEnableNotification(gioPORTA,1);

}

/* USER CODE BEGIN (4) */

void gioNotification(gioPORT_t *port, uint32 bit)
{
gioSetBit(port,bit,1);
}

/* USER CODE END */

all the necessary settings have been made in the halcogen file.

However it is not working. when I try to do the same thing via polling it works fine.

Could someone please tell me where i am going wrong.

Thanks

over 9 years ago

0 Charles Tsai over 9 years ago

TI__Guru**** 191316 points

Hi Saharsh,

Are you using the GIO high or the GIO low interrupt? In HalCoGen, did you enable the GIO interrupt in the VIM module? In HalCoGen, please go to the VIM Channel 0-31 tab and check if the GIO High (channel 9) or GIO Low (channel 23) is enabled.

0 Saharsh Bansal over 9 years ago in reply to Charles Tsai

Prodigy 230 points

Hello Charles,

i am using the GIO high interrupt
Yes the GIO Int A pin in VIM Channel 0-31(channel 9)is enabled

0 Charles Tsai over 9 years ago in reply to Saharsh Bansal

TI__Guru**** 191316 points

HI Saharsh,

Does your code even come to the gioHighLevelInterrupt()? If you put a breakpoint at the entry to the gioHighLevelInterrupt() in gio.c do you see the CPU stop here?

Can you tell me how are you generating the interrupt on the rising edge of which pin?

How are you passing the parameters to gioNotification(gioPORT_t *port, uint32 bit) when you call it?

0 Saharsh Bansal over 9 years ago in reply to Charles Tsai

Prodigy 230 points

Hi Charles

No my code does not reach the gioHigh LevelInterrupt() in gio.c. also i am trigerring an input by connecting a switch to the GIOA1 pin. when it is switched on then a high signal is received by the pin which triggers the rising edge interrupt. the parameters are being passed as (gioPORTA,1).

Thanks

0 Charles Tsai over 9 years ago in reply to Saharsh Bansal

TI__Guru**** 191316 points

Hi Saharsh,

Can you tell me the setting of your GIOINTDET, GIOPOL and GIOENASET, GIOLVLSET registers? Also do you see the interrupt flag get set for GIOA1 in the GIOFLG register?

I want to make sure that the GIO module is detecting the GIOA1. If it does, then it will set the corresponding GIOFLG. If not set, then no interrupt is generated.

0 Saharsh Bansal over 9 years ago in reply to Charles Tsai

Prodigy 230 points

Hi Charles

In the Halcogen file i have activated the rising edge interrupt with high priority for GIOA bit 1. i assume that the registers that you have mentioned above have been assigned the required values by this setting made.

0 Charles Tsai over 9 years ago in reply to Saharsh Bansal

TI__Guru**** 191316 points

Hi Saharsh,
Can you take a screenshot of all these registers? If HalCoGen has them set correctly then the GIOFLG flag will be set when the rising edge is asserted on GIOA1. GIO module will then assert an interrupt request to the VIM module. Check the corresponding VIM channel for GIO is also set. Finally, the VIM will generate a nIRQ interrupt to the CPU. If the CPU CPSR is enabled for IRQ interrupt then the CPU should take the GIO ISR. So if you place a breakpt in the ISR, the CPU is supposed to stop there.

0 Charles Tsai over 9 years ago in reply to Charles Tsai

TI__Guru**** 191316 points

HI Saharsh,
Have you got the GIO interrupt to work now? If your question is answered can you please click the Verify Answer button? Thanks.

0 Saharsh Bansal over 9 years ago in reply to Charles Tsai

Prodigy 230 points

Hi Charles

Sorry for the late reply.
Yes my GIO interrupt works now. thanks for all your help.

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GIO interrupt Tms57004