Cyclone V Soc LEDs Issue- Help Required

Question

Hi,

I am using cyclone V Soc HPS. Issue I am facing is I have been able to access GPIOs button and DIP switches but i am unable to access LEDs. I am using lauterbach for debugging. Changes made by the application are reflected in the CPUs registers. Toggling DIP switches toggles corresponding bits in registers but toggling LEDs bits have no effect on LEDs.

(*((int * ) 0xFF709004)) = 0x0000F000; // DDR of GPIO1 module : 1-> LED pins as O/P [bits: 12-15]

(*((int * ) 0xFF709000)) = 0x00000000; // DR of GPIO1 module : 0-> LEDs ON (active low) [bits: 12-15]

Above locations are being used for LEDs. Let me know if I am missing anything.

Thanks in advance.

altera_forum · Answer

Hi Waleedabbasi,

I too not able to Switch on the HPS_LED0 to HPS_LED3, using the below code.. I am using ARM-DS5 Compiler for compiling and debugging.

// initialising the memory locations of the registers using

# define gpio1_gpio_swporta_ddr (*((volatile unsigned long *) 0xFF709004))

# define gpio1_gpio_swporta_dr (*((volatile unsigned long *) 0xFF709000))

# define clkmgr_bypass (*((volatile unsigned long *) 0xFFD04004))

# define clkmgr_en (*((volatile unsigned long *) 0xFFD04060))

void Init_showactivity(void);

void Init_clock(void);

int main()

{

Init_clock();

Init_showactivity();

while(1);

}

void Init_showactivity(void)

{

gpio1_gpio_swporta_ddr |= 0x0000F000;

gpio1_gpio_swporta_dr &= 0xFFFF5FFF;

}

void Init_clock(void)

{

clkmgr_bypass = 0x00000019;

//clkmgr_en = 0x00000006;

}

Have you got any solution or code for blinking the LED. Could you please guide me..

altera_forum · Answer

I used u-boot which resolved the issue.

altera_forum · Answer

Hi,     Thanks for your suggestion,     Could you please guide me more regarding the U-Boot.

altera_forum · Answer

Actually i was using lauterbach, I got an example targetting GPIOs of altera Cyclone V Soc, when you build this application using ARM-DS5, along with the binary of your target application a uboot binary is generated, and a script is available for loading both of these binaries to target platform. I ported the script for lauterbach and used same uboot binary generated with the example and voila it worked :)

altera_forum · Answer

Hai,    Thanks,   From where you got the sample LED project for cyclone.

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Cyclone V Soc LEDs Issue- Help Required

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