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Resolved! [Documentation] UM1472 STM32F4DISCOVERY - Free I/O

Posted on March 07, 2017 at 16:12In UM1472 rev.5, Table 6. STM32 pin description versus board functions, the Free I/O column as it is now is dysfunctional.It has an interesting history: the pins respective to individual functions (including free) us...

How many alarms can i have with RTC in STM32F407VGT

Posted on October 06, 2017 at 11:52Hi,i need two precise alarms i can set on my STM32F4 which will also be save when only the Backup domain is powered by a small battery. How many alarms can i have on the RTC of STM32F4? What would be my other optio...

stm32l4xx standby exit pullup/pulldown

Posted on October 06, 2017 at 01:45The stm32l4 family had the very nice feature of programmable pull-up/pull-down on the various GPIO pins to be applied when in shutdown or standby.  In standby mode, these configurations are not lost at wakeup (at l...

Geoffrey1 by Associate III
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Need the development board of STM32L072RB

Posted on October 06, 2017 at 12:39Hello,I need the development board of STM32L072RB. I also need the technical difference of STM32L072RB and STM32F072RB.#stm32l072rb #stm32f072rb

ketan v by Associate
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STM32F303 internal bootloader does not work - pt. II

Posted on October 06, 2017 at 12:35Hello everybody,  I am still having problems with the STM32F303 bootloader.Description STM32F303CCExternal 24MHz CMOS oscillator1.5kohm pullup on USB_DPUSB working perfectly (in the application: no issues whatsoev...

Dma differences between stm32l4 & stm32f4

Posted on October 06, 2017 at 11:30Hello,I'm trying to port a code from stm32l4 to stm32f4 it seems that DMA initialization is a bit different between those two chips:stm32l4 requires' DMA_REQUEST_XX' : hdma_tim.Init.Request = DMA_REQUEST_4; hdma_ti...

STM32F427 conflict of USB and USART1

Posted on October 06, 2017 at 11:31Hi, everybody!I have made the multiplexer on MCU stm32f427vit6I want to use in him all 4 uart and 4 usart.Also I want to use USB_OTG_FS as the VPC console of management.But I have faced a problem if I begin to use ...

I2C/external FS PHY on USB_OTG_HS in STM32F407

Posted on June 09, 2017 at 13:31'F407's OTG_HS_GCCFG:The USB OTG HS core embeds an I2C interface allowing to connect an external FS PHY.The I2CPADEN is used to enable or disable the I2C bus connection for this interface.On which pins?Can you please ...

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spi2 not working in stm32f070

Posted on October 04, 2017 at 07:38 Hello All currently i am working in Fatfs with stm32f070 with spi1. when i move to spi2 its not working. i am trying multiple times but i cant get success. here is my init function void SPIFlashInit(voi...

How can fix CAN Receive problem in Normal Mode

Posted on October 02, 2017 at 20:28Hi,I try to communicate via CAN. I can transmit data to PCAN but i can't receive in Normal Mode. When i use Loopback, i can receive data. Please Help me.. My configuration is here/* CAN1 init function */static void...