gio functionality for dmmPORT

Hi Thomas,

From the first look of your code, seems that the gioSetBit function is not called properly. Can you try  'gioSetBit(dmmPORT, 4, 1); ' instead of the function call you have used for gioSetbit? The driver for gioSetBit is implemeted in the below syntax:

/** @fn void gioSetBit(gioPORT_t *port, uint32 bit, uint32 value)
*   @brief Write Bit
*   @param[in] port pointer to GIO port:
*              - gioPORTA: PortA pointer
*              - gioPORTB: PortB pointer
*   @param[in] bit number 0-7 that specifies the bit to be written to.
*              - 0: LSB
*              - 7: MSB
*   @param[in] value binary value to write to bit

In the meanwhile, i shall also give it a try at my end.

Regards,
Praveen

Hello Praveen,

is the address for dmmPORT correct?

Halcogen generates:

#define dmmPORT ((gioPORT_t *)0xFFFFF738U)

In the TRM is DMMDESTxBL2 on address 0xFFFFF738h

Do I have to call dmmInit() before using the dmm Pins as gpio? Do I have to configure the dmm Pins in Halcogen as gpio on the DMM tab?

Regards,

Thomas

Hi Thomas,

Are you checking the dmmPORT definition in reg_dmm.h? I see that it is generated correctly generated at my side.
From reg_dmm.h  : "#define dmmPORT ((gioPORT_t *)0xFFFFF770U)" . Can you send me your halcogen project ?

Yes, You have to call the dmmInit() by setting the desired pins as gpio in the DMM tab. This will initialise the dmm pins as gpio before you start using the pins. Once that is done, you can go ahead and set the directions/set,clear the pins. The below sequence should work:

void main(void)
{
/* USER CODE BEGIN (3) */
 dmmInit();
 gioSetDirection(dmmPORT, 1 << 4);
 gioSetBit(dmmPORT, 4, 1);

/* USER CODE END */
}

Attaching the halcogen project for your reference:

http://e2e.ti.com/cfs-file.ashx/__key/communityserver-discussions-components-files/312/6011.DMM_5F00_GPIO.hcg

http://e2e.ti.com/cfs-file.ashx/__key/communityserver-discussions-components-files/312/6281.DMM_5F00_GPIO.dil

Regards,
Praveen

Hello Praveen,

is the call of dmmInit() also necessary, if DMM is not used?

Regards,

Thomas

Hello Praveen,

It works. Thanks for your help.

Thomas

I have attached the hcg file as .txt

In Halcogen I have done:

Enable DMM.

On Pinmux tab select the Pins for DMM functionality.

On the DMM tab select GIO function for DMM pins.

Generate Code.

In Code Composer:

Change dmmPORT address from 0xFFFFF738U into 0xFFFFF770U

main()

{

dmmInit();

gioSetDirection(dmmPORT, 1 << 4);

while(1) gioToggleBit(dmmPORT, 4);

}

Hi Thomas,

Good to hear that you got it working. But, I am still wondering why the dmmPORT address is not correct in your case. I tried the halcogen project you gave and it is generating the right address(in reg_dmm.h) at my side.

Can you try generating the code one more time with the latest halcogen release and let us know if you are still not getting the correct dmmPORT address?

Regards,
Praveen

PS: If this answers your question, please click verify answer to close this thread.

Hello Praveen,

I use HalCoGen 3.08.01 and it generates the address xx738U in reg_dmm.h

Thomas

Hello Praveen,

in the DIL file I found

DRIVER.DMM.VAR.DMM_BASE_PORT.VALUE=0xFFFFF738

and changed it to

DRIVER.DMM.VAR.DMM_BASE_PORT.VALUE=0xFFFFF770

Now, the right address is generated.

I think it is a problem, that the project is generated from an older version of Halcogen. The update to a newer version of Halcogen do not update the DIL file?

Thomas

Hello Thomas,

Glad to know that you were able to locate the issue. I will get in touch with the Halcogen experts to check if the DIL willl get updated. Will keep you posted.

Regards,
Praveen