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Reliably detecting power-off/on with stm32l432

Posted on February 28, 2018 at 16:24The stm32l432 lacks the PORRSTF flag that other stm32 processors have, so I don't see a way to reliably detect a power-off/on event.  I tried parking a bit in the backup registers, but it doesn't appear that this ...

Geoffrey1 by Associate III
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What happens when I turn off a peripheral clock ?

Posted on February 28, 2018 at 09:08Hi, I'm designing a low power application using a L452RE. In order to keep the power consumption to the minimum I turn ON and OFF the peripheral clocks only when I need to use the peripheral. My question is what h...

Kraal by Lead
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External Loader for IS25LP256D-JMLE

Posted on September 21, 2017 at 14:36Hi all!We encountered a problem while we wants to program our Display Controller Unit. In our previous prototype we used a QSPI Nor-Flash MT25QL256ABA8ESF-0SITWe could use the available bootloaders found in ST-LI...

Brushed motor driver control

Posted on February 28, 2018 at 06:27Hi, I'm new to Stm32 but I've used alot Arduino. I have the Stm32L4 on a custom board and first I would like to control a brushed dc motor, I have a pololu motor driver with In1,In2,Pwm etc.Is there anywhere to ge...

Problem with I2S

Posted on February 27, 2018 at 12:25Hello!Our customer has a problem:'We tried to connect m66-ds modem to STM32F207VE, scheme in attachments. I2S initalization code is generated in CubeMX. We tried to work with I2S interface using interrupts, it wor...

Resolved! LL function causes compiler warning

Posted on December 18, 2017 at 16:54Hi!The LL library causes a compiler warning (dereferencing type-punned pointer; see below).Can I ignore this warning?-Thomas/STM32Cube_FW_F3_V1.9.0/Drivers/STM32F3xx_HAL_Driver/Inc/stm32f3xx_ll_crc.h:355:3: warnin...

T B by Associate II
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About stm32 ic model name?

Posted on February 28, 2018 at 06:10Maybe I ask a simple question about what the meaning of stm32's model namelike 'stm32f407vgt6', what's the 'v', 'g', 't', '6' mean? or f407 I know '4' is about cortex-m4, but 07 means something special?Thanks a lo...

ctc.ctc by Associate II
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STM32l432KB Based Custom Board

Posted on February 27, 2018 at 13:12Hi Alli will use STM32l432KBU6 5x5 packageSo please suggest me how much value external crystal use for main clock.RegardsNitin #stm32l432 #stm32-l4

[Solved] Sync TIM2 & TIM5 on capture/compare event

Posted on December 22, 2015 at 09:54 Hello I can't seem to get a timer sync on a capture and compare event working, but let's build up a little. According to the internal trigger connection of timers 2-5 it's possible to link #5 as slave...

Error_Handler debugging

Posted on February 27, 2018 at 19:29Hello,The HAL code uses a Error_Handler() function which just spins forever in a tight loop.   I've seen comments about changing the call to report __FILE__ & __LINE__  which I may do.   But I thought setting a br...