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Resolved! STM32H7 SPI flash fast read timing calculation

Hello,I have a NOR SPI flash connected to single SPI interface of a H75x MCU and want to use the highest possible SPI frequency for data read. The core clock is 400MHz, so I can chose between 50 and 100MHz.According to the data sheets the "Clock low ...

is25wp128d_normal_read.png is25wp128d_fast_read.png
regjoe by Senior
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Resolved! TXE interrupt comes even though TXEIE is not enabled

Basic setting of USART2: DMA Transfer and receive via interrupt as RS485.As long as only DMA transfer is ongoing, all will be ok. At first time a receive interrupt will occur, the transmit will trigger an interrupt, even though no TXEIE is set. This ...

rodi66 by Associate II
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  • 8 replies
  • 1 kudos

Floating outputs when not connected to PWM Timer 8

Hi, i found out, that the output is floating, when it is not activated to output the PWM signal of timer 8. // **************** PWM ********************* // PC6-8 (High side) // PC10-12 (Low side) my_GPIO_InitStruct.Pin = GPIO_PIN_6 | GPI...

Tobe by Senior III
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  • 1 replies
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Resolved! Expected Speed of Flashing over USART

Hello, I am currently flashing an STM32F767 via the USART. I have no problems getting the device into DFU mode, initiating the flashing (Using STM32CubeProgrammer or stm32flash), etc., but the flashing time is between 6 and 7 minutes for the 1.3MB fi...

bcoghlan by Associate
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  • 3 replies
  • 3 kudos

Improvement needed (manual) - G431

Hi,i ran into quite an issue. Already took quite some time to figure out, how the outputs can be made to work the way (kind of) they should.Now i ran into an issue, when the outputs where not activated (Hi-Z). First it was not a problem, but i found,...

Tobe by Senior III
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  • 3 replies
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STM32G071: TIM1+PWM+DMA 2nd pulse looks strange

Hi,I'm trying to talk to WS2812 RGB Leds. I'm using TIM1 CH3 PWM Output with DMA. Everything looks almost fine. I'm always sending the same data using:HAL_TIM_PWM_Start_DMA (&htim1, TIM_CHANNEL_3, (uint32_t *) pwmData, (24 * NUM_OF_LEDS) + 50);Here p...

Mischa by Associate II
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  • 5 replies
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Hardware Vulnerability Analysis - EN18031

Hi,I'm tasked with creating the documentation for assesing the compliance of our product in regard to EN18031.The standard requires us to have checked if the relevant hardware has any publicly known security vulnerabilities. But when I asked our hard...

I3C Private Write STM32H533RE

Anyone familiar with using I3C in HAL? I'm using I3C to talk to an IMU sensor and I got through DAA and can successfully perform private reads (can read from whoami and other registers also tested) but I couldnt get private writes to work.I followed ...

bobycx by Associate
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  • 1 replies
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STM32F030C8T6TR DMA

GreetingsI am using STM32F030C8T6TR for ADC on two channels IN1 & IN3. It works. However I wanted to add DMA. When trying to add DMA , It shows on two channels channel 1 and channel 2 , Though the datasheet mentions DMA is available for 5 channels. I...

Sbag by Associate III
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  • 11 replies
  • 1 kudos