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Clocking RTC from HSE

Posted on October 15, 2015 at 15:17Hello. I use STM32F429 controller with 12MHz HSE oscillator. Is it posible to clock RTC from HSE while controller supplied from VBAT pin only?

LSI and HSI accuracy versus temperature and time

Posted on October 15, 2015 at 08:41 Hello, I 'm using a STM32F030C8 and I generate a tick of 1.136ms with the RTC with subseconds alarm. I calibrate the LSI with the HSI (=8Mhz) but I don't know how LSI and HSI frequencies change when temperat...

SPI_NSS_Hard or SPI_NSS_Soft for only one slave

Posted on October 15, 2015 at 13:27Hi , I have an SPI program running successfully between two stm32f4 discovery boards using SPI_NSS as SPI_NSS_Soft. Some discussions on Stm32f4 SPI say that SPI_NSS_Soft has to be used when only one slave. Does th...

nemisha by • Associate II
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Bug Report: CubeMX Corrupts File Links in OpenSTM32

Posted on September 23, 2015 at 12:49Hello, there seems to be a serious problem with project re-generation with CubeMX. After regenerating a project, the linked files (for example HAL and configuration files, like main.c) point to the wrong directio...

No ethernet on some switches

Posted on October 15, 2015 at 10:16Guys, I have a strange behavior using STM32F373RCT6 with ENC28J60 Ethernet IC: Overview: The IC is connected to STM controller via SPI. I�ve attached the schematics. It�s configured to half-duplex mode, for compat...

demoman by • Associate
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STM32 GPIOs state during/after startup

Posted on October 12, 2015 at 11:25Hi guys, as a preface: Thank you to everybody contributing in these forums! I have found a lot of useful information and good ideas here. Here comes my question: I work with the STM32F100VB. In my application it's ...

help: HAL_Delay and FreeRTOS cause HardFault_Handler

Posted on October 15, 2015 at 04:12I'm using HAL libraries, its HAL_Delay with FreeRTOS will cause HardFaultmy stack backtrace:&sharp0  HardFault_Handler ()    at ./system/stm32f4xx_it.c:83&sharp1  <signal handler called>&sharp2  0x0800343a in xTask...

sprhawk by • Associate II
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Again...ADC with 2 Channel with DMA not working!?

Posted on October 15, 2015 at 06:03 Hi.I'm a newbie in ST and ARM.I tried to setup 2 Channel ADC with DMA but it's not working.Can somebody guide me?.I think i keep on making mistakes somewhere.Thanks! /*Preprocessors Directives*/ #in...

F407 code porting to F411

Posted on October 14, 2015 at 18:51Hi, I am using CoIDE. Unfortunately it doesn't support the F411 but the 407, so I am coding for the F407. What adjustments do I have to do (linkerscript, startup.s ?) in order to make the F407 code compile and run ...

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