Regarding P/N: STM32WB55 in a WLCSP100 package:Q1: When VBAT is not in use, can I connect it to GND?Q2: When VDDA is not in use, it must be connected to VDD, but is it still requires a 10 nF + 1 μF capacitors?Q3: If VDDA is not in use, can I connect ...
Hi,So for a project I'm working on I'm using an STM32WB55RG nucleo board. For my tests I've powered the board fine before using either usb port and through the VBAT pin when using a DC power supply. An aspect of my project is that it needs to be batt...
Can anyone confirm if it is okay to supply the RF switch directly from a general purpose output of the STM32WL? This way I could control when the switch is working or when the antenna is isolated (off) from the circuit.I see in the datasheet for the ...
Currently, we are using the STM32WLE5CC MCU.Some MCUs do not operate normally when the same firmware is inserted into several MCUs. (Abnormal current, delays in Uart log output, RF is not transmitted)If a higher voltage (4.4V) than the MAX operating ...
We've switched to new DC-DC(LM3281) for main power supply and found that BLE TX stopped working correctly and not passing packet test anymore.After deeper investigation we found that our DC-DC in ECO mode has ripple/pulsation of 60mV/50uS, which caus...