I use dwm1001 module generic UART API interface to talk to our MCU, our MCU periodical call function “dwm_pos_get(dwm_pos_t* p_pos)” to quiry the position data, the communication is working fine if “dwm_sleep()” is not called otherwise I can’t receive the location data anymore, the dwm1001 module always response with timeout.
what can I do to fix this? I’ve tried to add a wakeup byte before transmitting or even send one byte message before calling “dwm_pos_get()”, none of them works.
what’s the best approach to save power on dwm1001 module?
I configured the dwm1001 as no responsive mode, stationary rate is 10s, and peridically query the position data at 5sec without calling dwm_sleep(). so far the lowest current I can get is arount 1.4mA, it is too high. The data sheet says the module should consume 12uA when sleep, how to get this?
the normal update rate is also 10s but the module is stay on table no moving at all. From the formula I should get around 43uA isn’t it?
why I can’t use dwm_sleep() ? is there anyone have experience on it?
I still cannot make dwm1001 module current draw < 1 mA.
In my application I use Nordic power profiler to track current draw, if power up do nothing I can see once dwm1001 module finish BLE activity the module is in sleep mode, my board current draw can drop to 350uA, as long as resume the Uart query to dwm1001, the board current draw going up to 1.5mA and stay there, I pretty sure this is because the dwm1001 module is in active mode as long as uart is triggered, how can I put the dwm1001 module into sleep mode in between the uart query? I can’t use dwm_sleep() command somehow and had no clue. need advise, thanks.