STM32 MCUs Products

PUTCHAR_PROTOTYPE question ?

Dear Members,Is it possible that I use two UART with  PUTCHAR_PROTOTYPE ?I have used UART3 with  PUTCHAR_PROTOTYPE for talking with PC,I want to use it as well for talking with modem (UART1)Thanks

SB bit of DMA2D_OPFCCR register missing on STM32H7?

Dear Sir/Madam,It seems that DMA2D_OPFCCR register SB bit described in the reference manual of the the STM32H7 (RM0433, page 721) is not implemented. Code generated by CubeMX is missing the definition completely, an attempt to set the bit directly fr...

I have an ic MCP3428, I'm trying to connect it by I2C. Now problem is that I'm writing a code to figure out what the exact I2C address is? but it doesn't work

for(uint8_t i=0;i<255;i++) { HAL_Delay(10); if(HAL_I2C_IsDeviceReady(&hi2c1,i,2,20)==HAL_OK) { uint8_t address=i; break; } }

Using CoIDE code to program a STM32 ARM Microcontroller in Keil u vision

Hi guys, I have some Arm microcontrollers (STM's to be specific). There's a tutorial on youtube(Link to it-https://www.youtube.com/watch?v=R6SstBoXjKc&list=PL6PplMTH29SHgRPDufZhfMRoFwRAIrzOp&index=1 If you look at more videos in the playlist, you'll...

Can we re-route the DAC output to some other Pins other than PA4 and PA5 in STM32?

I am working with STM32H743, and I want to use Pin no. 89 as DAC output. Is there any register setting where I can change PA4 to PG4(89).I tried replacing PA4 to PG4 in a working example code, but the output still comes on PA4.

DMA events from TIM1 - One Stream with 3 channels?

I've been reading the STM32F427 and I can't confirm my understanding - so I'd like to ask.I have data that I must push out a GPIO faster then should be serviced by an interrupt.My intent is to use TIM1 - set a period - then set 3 output compares havi...

Hello STM, can you please explain to me the Table 24 in reference guide for STM32L151x6/8/B STM32L152x6/8/B. How can be the current consumptions of all peripherals on AHB more than twice higher than the sum of cunsumption of each peripheral individually?

Does a bare STM32 ARM Microcontroller come with a bootloader?

Hi guys, I am planning to buy a bare STM32 ARM Microcontroller and wanted to know wether it comes with a boot loader so that I can directly upload code using Keil u vision, STM32 Cube MX and a ST link V2. If there is no boot loader shipped with the u...

How to organize the SPI transmit buffer?

Dear experts, can you please give a suggestion about how to proceed with the following problem?I am trying to display the information on the PCD8544-driven LCD (aka Nokia 5110) about the incoming UART messages.I am using STM32CubeMX to configure the ...