CC2530: CC2530 Pin control for LED

Manju K

Part Number: CC2530
Other Parts Discussed in Thread: Z-STACK

I am using a CC2530 Generic board (similar to below) ) as an EndDevice. Using IAR workbench fro 8051 for compilation and using the SmartRF Flash Programmer to transfer the code to the board.

My Intent is to connect a LED in one of the Pins and control the On/OFF. By using the SampleLight program from z-stack, I am able to successfully connect and control the LED to some Pins - like P1_0, P1_1, P0_0. But I am unable to control in the pins I need like P2_1, P2_2, P0_7. Why is that I am able to control in some pins but not in others? Below are the changes I have done

in hal_board_cfg.h, I modify the LED1_SBIT with the appropriate pin I need. I also change the LED_DDR to P1DIR for pins starting with P1 or P0 or P2 depending on the pin on LED1_SBIT. Somehow it works with the some pins I stated above. What is it I am doing wrong? Also what is the "DDR" in LED1_DDR?

#define LED1_BV           BV(0)
//#define LED1_SBIT         P1_0
#define LED1_SBIT         P1_0
#define LED1_DDR          P1DIR
#define LED1_POLARITY     ACTIVE_HIGH

I am calling "HAL_TOGGLE_LED1();" in callback function "zclSampleLight_OnOffCB" in zclsamplelight.c

over 5 years ago

0 YiKai Chen over 5 years ago

Guru 735695 points

Which IO pin do you actually want to use to control LED but cannot make it work?

0 YiKai Chen over 5 years ago

Guru 735695 points

By the way, CC2530 Debug interface uses P2.1 and P2.2 as debug data and clock pins do you cannot use them as GPO when doing debug.

0 Manju K over 5 years ago in reply to YiKai Chen

Prodigy 200 points

I plan to use DL-20 () board going forward and P2.1 and P2.2 are the only ones exposed out. Hence, want to use the P2.1 and P2.2. I do understand that I will not be able to use them for debug, but once the .hex file is written on the board, I do not need the debug, I will just use the VCC and the GND pins to power. I was using the board I stated in my original post to finalize the program before dumping the firmware to DL-20

0 YiKai Chen over 5 years ago in reply to Manju K

Guru 735695 points

To use P2.1 as LED, I suppose you can use the following settings.

#define LED1_BV BV(1)

#define LED1_SBIT P2_1

#define LED1_DDR P2DIR

0 Manju K over 5 years ago in reply to YiKai Chen

Prodigy 200 points

Unfortunately, does not work. I am not sure whether other code within tbe hal cfg affects this pin. When i connect the led to 2.1 there is always faint glow in led indicating something is controlling the led. The same behavior is for other pins also (where the pins does not work) like 0..

0 YiKai Chen over 5 years ago in reply to Manju K

Guru 735695 points

Check if the P2.1 pin is pull-high in the module schematic.

0 Manju K over 5 years ago in reply to YiKai Chen

Prodigy 200 points

okay looks like there is lot of code in hal_board_cfg.h that I would need to check. A quick check revealed that in SampleLight there is indeed a push button configuration that is being used for Port 2. Whether that really impacts the 2.1 I am not sure, need to check.

I am not familiar with the registers and terminology of DIR, DDR, etc. Is there some guide I can learn from? Also for example why are the bit operations being done in the hal_board_cfg.h?

0 YiKai Chen over 5 years ago in reply to Manju K

Guru 735695 points

Yes, you can refer to CC2530 user guide.

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CC2530: CC2530 Pin control for LED