STM32 MCUs Products

STM32F446 I2C Registers OAR1 and OAR2

Are these registers two address of a I2C slave or OAR2 is a mask of OAR1?Mean:address slave = OAR1 AND OAR2. Ex. OAR1 = 0xE0 OAR2 = 0xF0. (OAR1 AND OAR2) are 8 address 0xE0,0xE2 .. 0XEE . Thank you Marco

Resolved! How to remap from flash bank 1 to 2.

I'm setting the FM_MODE bit in SYSCFG.MEMRMP and I get a hardware fault indicating attempted switch to invalid state.

I2C Interrupts

Hello everyone!I would like to know what requirements are needed to work with sensors in a STM32 core F401RE using I2C Interrupts, and if that is possible.Thanks.I was searching in Internet but I don't find nothing.

Resolved! MCU internal oscillator is not 16Mhz but 18Mhz on some MCU. Why is that ?

Hello,I found this issue that seems that I still can't find the reason.I am using a STM32F750N8H6 (7BA3Z 9R 1), BGA package on a custom 6 layer board.I manufactured 11 boards, and within those 11, 8 of them the HSI seems to be at 18Mhz although the H...

Resolved! USART RX and TX issue

I am using STM32F746G discovery board.~~~void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) { HAL_UART_Receive_IT (&huart6, Rx_buff, USART_RX_BUFFER_SIZE); HAL_Delay(500); HAL_UART_Transmit(&huart6, &Rx_buff, USART_RX_BUFFER_SIZE, 1000);}~...

Resolved! Do I need to use Xdata, idata to define variables in programming?

When I use the 51 kernels, if I encounter too many defined variables, especially when there are more arrays, I can use xdata,idata to define variables, but I don't know if I can use them with STM32?

An Assembler for STM32 and compatible with Ubuntu

I'm new to STM32. I want to learn the architecture of STM32 using assembly language. but Keil microVision MDK-ARM is not Linux compatible. What is the alternative of Keil to write an assembly code for STM32.

Resolved! Printing with GCC: printf() function never calls custom _write()

Hello,I've spent quite a bit of time scratching my head and I would appreciate any guidance in this matter.I am using Segger's Embedded Studio with Segger's RTT printf library. Everything works fine with the Segger_RTT_printf() output. I can see the ...

Best way to suspend a triple interleaved ADC working in DMA mode 2 And to know the buffer address being written at suspension

Hi, I've configured the triple ADCs in Interleaved mode with DMA writing the ADC data in circular mode 2 on my Stm32f429 Discovery board. What I'm trying to implement is:Initialize DMA and ADCsWait for an external interruptPause the DMA transferShow ...

Datasheet Accuracy Specifications

Hello,I'm doing some preliminary error budgeting for a piece of ATE that may include an STM32 MCU and was curious what the uncertainty of your public accuracies was? Appreciate it,Bob

STM32 MCUs Products

Forum Posts

STM32F446 I2C Registers OAR1 and OAR2

Resolved! How to remap from flash bank 1 to 2.

I2C Interrupts

Resolved! MCU internal oscillator is not 16Mhz but 18Mhz on some MCU. Why is that ?

Resolved! USART RX and TX issue

Resolved! Do I need to use Xdata, idata to define variables in programming?

An Assembler for STM32 and compatible with Ubuntu

Resolved! Printing with GCC: printf() function never calls custom _write()

Best way to suspend a triple interleaved ADC working in DMA mode 2 And to know the buffer address being written at suspension

Datasheet Accuracy Specifications

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