STM32 MCUs Products

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stm32f405 rtc help

Posted on May 12, 2014 at 09:29Dear all, i am using STM32F405 with internal osc. clock. I connected a 3V lithium battery as VBAT, and would like to use the RTC to keep time when power is off. I read some samples here and there and implemented some R...

Angelo1 by Associate II
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STM32F030F4 / K6 bootloader via UART don't work for me

Posted on December 31, 2015 at 19:15Dear Friends and Colleagues!I'm interested to move from NXP chips to ST ones, so I've got a pair of devices and am currently trying to work with their bootloader via UART. The devices areSTMF030F4 (TSSOP-20)STMF03...

STM32 - HSE OSC 16 MHz fails to start

Posted on December 31, 2014 at 17:20 Hi, I have a problem with proper main clock configuration in STM32F030K6T6. I've connected an external crystal 16 MHz with 2x15 pF caps, but the HSE is not starting. Variable HSEStatus remains 0, so the PL...

slatybor by Associate II
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F407VET6 not entering code - left nRST floating by mistake

Posted on December 30, 2014 at 04:46I goofed, big time. I'm new to the STM32F and I didn't follow the STM32F4 discovery schematic. I built a board that I wanted to power up from flash, and while I remembered the BOOT0 setting (GND), I left nRST floa...

siegelj by Associate II
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Timer PWM and Counter question

Posted on December 31, 2014 at 16:53I am using an STM32F407I want to generate exactly 400 pulses on PE5 or PE6 with a 50% duty cycle.I believe PE5 can be connected to TIM9 CH1, and PE6 can be connected to TIM9 CH2I have the PWM code running and I ha...

barry by Associate II
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using the flash as an EEPROM of STM32F3

Posted on November 25, 2013 at 17:50Hi, This is a post that was posted before in a wrong thread, this post was : I would like to store my data in memory when the computing is done and used the data for the next use. I don't have the EEPROM memory o...

hilwan by Associate II
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