66AK2L06: GPIOs not toggling

Sreejaya Varma

Part Number: 66AK2L06

Hi,

I am testing the GPIOs of 66AK2L06 DSP core0, in our custom board. I could not find EVM example projects for configuring direct GPIOs since example projects mention only GPIOs from FPGA. My reference is example projects in pdk_k2l_4_0_8.

My requirement is to configure GPIO6 and GPIO52. I found that power domain for GPIO peripheral is always on. I tried the following code but could not toggle the GPIOs.

static CSL_GpioHandle hGpio = (CSL_GpioHandle) CSL_GPIO_0_CFG_REGS;

//Set pinmux to GPIO52

CSL_BootCfgUnlockKicker();

*(volatile uint32_t*)(0x02620698) |= 0x00100000;//PINMUXCTRL2
CSL_BootCfgLockKicker();

CSL_GPIO_setPinDirOutput(hGpio, 6);

CSL_GPIO_setPinDirOutput(hGpio, 52);

CSL_GPIO_setOutputData (hGpio, 52);

CSL_GPIO_setOutputData (hGpio, 6);

CSL_GPIO_clearOutputData (hGpio, 52);

CSL_GPIO_clearOutputData (hGpio, 6);

Is there anything else to be done in my code?

Regards

Sreejaya

over 7 years ago

0 Sreejaya Varma over 7 years ago

Intellectual 430 points

Hi,
Many of our logic are based on status of GPIOs and the requirement is urgent. So anyone please help me to solve this problem.

Thanks
Sreejaya

0 db_woodall over 7 years ago

TI__Mastermind 21025 points

Have you verified that these GPIOs are actually connected to whatever pin or test point that you are probing for voltage changes? Or perhaps they are somehow grounded?

To check to see if perhaps some other GPIO is connect to your test point, you could loop the GPIO calls above over all GPIOs and check for voltage changes.

-dave

0 Sreejaya Varma over 7 years ago in reply to db_woodall

Intellectual 430 points

Hi Dave,
Thank you for the reply.
Actually with the above configuration I tested not only GPIO6 and GPIO52,but some other GPIOs also. I found that no GPIOs are working .
Also I found that GPIO user guide describes the registers only for GPIO0:15. That is the reason I tried testing GPIO6 also.

Can you please confirm whether the above configuration code is sufficient.
Regards
Sreejaya

0 Sreejaya Varma over 7 years ago in reply to Sreejaya Varma

Intellectual 430 points

I can see that the GPIO register values are correct. But on probing the signals, none of the GPIOs are toggling.
Anyone please help me.
Thanks
Sreejaya

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66AK2L06: GPIOs not toggling