User Activity

I cannot get STM32WLE5 (on a RAK3172 module) to exit from stop mode on either RTC timer or rising EXTI pin. I'm using STM Cube HAL functions and the stm32_lpm_if.c library. I have tried pin PB3 as either  EXTI3 or as PWR_WKUP3. If I use EXTI3, I set ...
I'm using a STM32WLE5cc inside a RAK3172 (TCXO) module on a custom board. I have custom firmware developed in the STMCube IDE. So, my join request is seen on the gateway, and the gateway sees a join accept from the server. Unfortunately the joined ev...
I have a problem programmatically setting RDP to level 1.My code is:OBInit.RDPLevel = OB_RDP_LEVEL_1;OBInit.OptionType = OPTIONBYTE_RDP;ret = HAL_FLASH_Unlock();ret = HAL_FLASH_OB_Unlock();/* Clear SR register */CLEAR_BIT(FLASH->SR, FLASH_SR_BSY);ret...
I have an STM32L452 rigged to use an external clock so we can keep the RTC running. Schematic attached.X2 is a clock from SiTime, programmed to be 32.768kHz. C36 is a supercap acting as battery backup. I used STMCube to generate the startup code to f...
Cube programmer (and st-link utility) cannot find the target when I try to connect to flash a device. I am using the SWD connection to my target. I have connected T_Vcc, gnd, clk, dio & nrst on CN6 of the MB1440B mezzanine board. Cube programmer reco...