STM32 MCUs Products

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ST7789

According to the datasheet, what is the maximum speed of the ST7789 for the SPI protocol? If we use an LCD with the ST7789 driver and connect it via the SPI protocol to a microcontroller, would we get higher speed with the STM32G0B0CET6 microcontroll...

Resolved! allocation of global variable SD-RAM external memory.

The 'HAL_SDRAM_Write_8b' and 'HAL_SDRAM_Read_8b' functions were confirmed using STM32H723ZGT6 and IS42S16320D-6TLI.(Check variable value changes with STM32CubeIDE's Memory Viewer and LiveWatch, no hardware problems)All internal RAM has been used to i...

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thyu by Associate
  • 1611 Views
  • 4 replies
  • 2 kudos

Resolved! BOOT0 pin and BOOT bits

I am using an STM32 G474RE NUCLEO board. Is it necessary for me to configure the BOOT0 pin and the BOOT bits in the FLASH_OPTR register if I am going to program the chip using the SWDIO and SWCLK pins with an ST-LINK V2?

tomm5771 by Associate III
  • 815 Views
  • 3 replies
  • 2 kudos

bit shift >> and & operation

Hi i m coding function to write 8 bit data to a slave device, what does the (byte & 0x01) do in the for loop and what does the shift right statement ( byte = byte >> 1;) do ? void write8bit(uint8_t byte) { int i; for (i = 0; i<8; i++) { lowClk()...

Series resistors calculations for any interfaces

Can someone please help with how to calculate the series current limiting resistors to be connected from STM32H7 or any MCU to transceivers or any other interfaces? Is there a general thumb rule followed? Also how to calculate the wattage of resistor...

JCAeron by Associate
  • 377 Views
  • 1 replies
  • 0 kudos

UCPD and DBCC (dead battery) doubts

According to RM0456, p. 3459So in addition to CCx pins also PB5 and PB14 (DBCCx) cannot be used. The above does not make much sense to me. I imagine (only imagine) that internally DBCC support is implemented like shown below and for "dead battery" to...

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TDJ by Lead
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  • 5 replies
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Resolved! Long delay in setting TIM status register bits

Hi,I am trying to use CC1 and CC3 inputs on TIM2 of STM32H7A3 to do some time-critial tasks (very ns fast time-stamping). I need to identify which CCxIF tiggered. Using STMCUBEIDE the skeleton interupt code worked fine in debug mode without the lines...

HWhit.1 by Associate III
  • 627 Views
  • 2 replies
  • 1 kudos

Resolved! ST Nucleo F767ZI USB not detected by PC

I've compiled my first program and I can't find a way to upload to the board.When I plug the USB, the onboard LED is lit, but my PC does not detect anything - I don't hear any "plug" sound, and I can't find any device in Device Manager (recognized no...

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out by Associate
  • 639 Views
  • 2 replies
  • 0 kudos