Hi,
I am working on a CC2640 4x4 package custom board, BLE stack 2.1.1, TI RTOS 2.13.00.06, CCS 6.1.2.
1. When power is first applied, the board draws 1.6mA of current for 5-10 seconds and then goes into advertising.
The advertising interval is set to 4 seconds. Is there a way to find out why the board is doing this during power up?
2. When the board advertises, the standby current draw drops down to 30 uA. One pull down resistor was added to
the SPI MOSI pin. Without this resistor, the standby current draw was about 0.3 mA.
3. I also tried the empty firmware test on this board using only PIN_terminate inside PIN_init and only BIOS_start
in all of main.c. The current draw is 1 mA in this case. Can anything be done with the firmware in this case?
Thanks,
Priya