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Multiple reads using DMA

Posted on March 30, 2016 at 13:14 Does DMA has FIFO buffer of commands? My task is to read multiple bytes from different registers via I2C alternately. Could I just write like this: /*Somewhere in code....*/ HAL_I2C_Mem_Read_IT(&hi2c2,...

sincoon by Associate II
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STM32F427 RTC Problem

Posted on March 30, 2016 at 12:59hi, My RTC is driverd by external 32.768K  clock source. It works well,if the MCU does not enter standby mode. Let the MCU enter standby mode and wake up every 60 seconds by alarm, RTC will slow about 6 seconds durin...

STM32F401 discovery - USB CDC not working

Posted on March 15, 2016 at 18:17Hi, I'm trying to get USB CDC to work. The sample project with USB CDC works and it outputs Hello\r\n, however, when I've added additional tasks and I2C usage, the application is stuck inside in an infinite loop insi...

STM32407 Issue

Posted on March 30, 2016 at 13:50Hi,I was wondering if someone can review my schematics as I am having issues with the JTAG. The voltage rails have the correct voltages but device is unable to be detected using JFlash and JLink EDU. I had another ha...

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STM32F072: What is the best PREDiv for 25 MHz HSE?

Posted on March 30, 2016 at 09:22Hi all: I have a board with an STM32F072. The HSE runs at 25 MHz, because I need to supply another chip with that frequency over the MCO output. What are the best PREDiv etc. settings for this input frequency? On the...

Diez.R. by Associate II
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Fdts in RM0090 Reference manual

Posted on March 30, 2016 at 09:03I'm working with timer1 in PWM input mode and trying to add a filter to remove input spikes. The document refers to a signal called Fdts when configuring the capture filter. I can't find the source / frequency of the...

tpb by Associate
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STM32f334 BootLoading of Custom Board

Posted on March 29, 2016 at 09:27This discussion is from an /public/STe2ecommunities/mcu/Lists/STM32Discovery/Flat.aspx?RootFolder=https%3a//my.st.com/public/STe2ecommunities/mcu/Lists/STM32Discovery/Calling%20stm32429I-Eval%20Bootloader&FolderCTID=...

ambrose by Associate II
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