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F103C8T6 GPIO pins and their alternate functions.

Hi all,recently I started playing with an STM32F103C8T6 based minimal dev board (BLUE PILL), it's a powerfull and complicated beast and the ST RM0008 Reference manual is 1134 pages, not really encouraging for beginners like me!!The pinouts found on t...

MLAOU.1 by Associate
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Triggering the adc in center of PWM

Hi Guys,I did lots of searches but find part of my answer. I'm using STM32F103C8T6 and I want to start voltage measurement by ADC (configured at scan mode and DMA) at the center of my PWM signal generated by TIM1 CC2. On ADC I've set EXTSEL[2..0] = 1...

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IDavo.1 by Associate II
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  • 1 replies
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Resolved! STM32F407: I2C1 not working with LCD1602 display. Bare metal

Himy first attempt to program a LCD1602 via I2C1 on my STM32F407 discovery board failed miserably. I do not get the start condition generated, which means I never get the Start bit (SB) set in my status register. It seems that I am missing something ...

AAnth.1 by Senior
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  • 8 replies
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Reducing DAC jitter

Hi,I'm writing data to a 24 bit register of an AD5664 DAC from an STM32F429 discovery board which I am using to produce sinewaves and slower sawtooth ramps. The full loop lasts approximately 200000 bytes which gives sufficient resolution over all wav...

SSmit.0 by Associate II
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  • 16 replies
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speed of execution - pin change seems too slow

I just got a simple program running on my STM32f0301k6. I am running the clock off a 20MHz crystal and the core is running off the PLL x 2 so everything is running at 40MHz. This means one cycle executes in 25nS, but if I write a loop like GPIOB->...

deep_rune by Associate III
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  • 13 replies
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