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Forum Posts

DMA from internal SRAM to FMC missing first byte

Posted on April 30, 2018 at 03:07 I'm using a Nucleo -F722ZE to interface with an FPGA. The instruction and data cache are disabled. I have timer interrupts to set off the DMA at specific times with 128 bytes per transfer. No matter how I set up th...

Resolved! stm32f407 i2s interface sync in slave mode

Posted on July 17, 2015 at 10:58Hello, I'd like to know if there is a 'magical' way to syncronize the bit stream with the channel signal in the i2s receivers. I don't have control on the external stream ( slave mode), so the serial clock is free run...

albert2 by Associate II
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  • 12 replies
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Stop mode and clock configuration at wake up

Posted on December 28, 2017 at 07:42Hello,I'm facing an issue i cannot figure out. I'm currently working on a stm32l073 and using the following RTOS : RIOT-OS. When i wake up from stop mode, UART seems to be desynchronized because wrong characters a...

BKP0R clear after a Tamper event

Posted on May 08, 2018 at 17:13Hi,i'm working with stm32f415RG and i have a strange behaviuor with RTC.I configured RTC with LSEAlarm A Internal AlarmAlarm B Internal AlarmWakeUp : internal wakeupTamper1 Routed to AF1TimeStamp on Tamper detection ev...

Marco1 by Associate II
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  • 1 replies
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Measure VDD stm32f4

Posted on August 07, 2017 at 21:57Hello Its not clear for me if is it possible to measure Vdd in stm32f407.I read the manual but still not clear how to perform that.I would be thankful if you show me an example if that possible.Thanks

Strange problem with I2C and timers

Posted on May 04, 2018 at 09:05Hi, I have a board with STM32F030K6 and an sensor wired on I2C. When using the sensor in polling mode (no interrupts) everything is working fine and i am able to read data and send it trough UART.Problem starts when I ...

STM32Cube USB CDC Unknown USB Device

Posted on January 24, 2018 at 09:37im lost! im trying to create usb cdc in STM32F405RGthe only thing im doing is to configure usb_fs as device and the usb class as a communication device class than i generate a code in STM32CUBEMx when using STM32L4...

Ita Dab by Associate
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UART on CubeMX is too slow

Posted on May 08, 2018 at 02:15Hi,I am fairly new to stm32 boards and used the cubeMX program to speed up development for a project I am working on. However, I have found that when sending messages with UART it takes 50ms for each transmit. That see...