Ble stack server receiverlink loss

RE: Ble stack server receiverlink loss

balaji — Mon, 07 Oct 2013 08:07:23 GMT

Hi Hung Bui,

Once i enable sd_devce api . it is working now.

and can you see my thread and reply me

https://devzone.nordicsemi.com/index.php/pheripheral-accessible-while-bluetooth-stack-s-enabled

Regards Balaji

RE: Ble stack server receiverlink loss

Hung Bui — Mon, 07 Oct 2013 07:29:30 GMT

Hi Balaji,

Could you send us your project files ?

It should be noted that, when you use twi_hw_master_SD_4_4.c, the softdevice must be enabled before otherwise the sd_ppi_* calls will have no effect and may cause errors.

RE: Ble stack server receiverlink loss

balaji — Fri, 04 Oct 2013 06:17:06 GMT

Hi Hung Bui,

Actually my device connection to eeprom is broken. so i think it is not writing data . sorry

for wrong reply. but now it is writing data to eeprom and reading fine. (i saw by keeping break point).

but once i flash code ,and press the button 0 ,it is not giving advertisement ,so i cant send the data

over bluetooth stack. can you say why advertisement is not coming when i enable soft device api.

(But i am getting advertisement when i use directly ppi address register)

Regards Balaji

RE: Ble stack server receiverlink loss

balaji — Thu, 03 Oct 2013 13:16:41 GMT

Hi Hung Bui,

Thanks for your reply,

I am using twi_hw_master.c .

once i used your code , write operation to eeprom is not working fine.

can you give some more details.

Regards Balaji

RE: Ble stack server receiverlink loss

Hung Bui — Thu, 03 Oct 2013 10:12:37 GMT

Could you let me know if you use hardware twi or software twi ? If you use hardware twi (twi_hw_master.c) you would have to modify the code to avoid directly access PPI when the stack is enabled. Otherwise you will receive a hardfault.

You would need to use sd_ppi_* api call instead of direct access to the NRF_PPI->* registers.

I attached here a modified version of the twi_hw_master (SDK4.4) to use when the softdevice is enabled.

twi_hw_master_SD_4_4.c