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Questions - stm32f3

Can STM32F303 on-chip I2C be used, to connect to STM32F3DISCOVERY on-board gyroscope (I3G4250D or L3GD20)?

The STM32F3DISCOVERY board has an STM32F303VC microcontroller, which has built-in SPI and I2C support, and a gyroscope which supports both SPI and I2C. Per the board's user manual and schematic, the g...
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MarnixKlooster ReinstateMonica

stm32

i2c

gyroscope

stm32f3

Votes: 0

Answers: 1

Latest Answer

There is no I2C on pins PA5 or PA7. What you can do is put PA5 and PA7 into high impedance mode (input or analog mode) and then connect jumper wires from them to PB6 and PB7 respectively where the I2C...
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Tom V

Why is a memory location only written to once in an interrupt callback when using ADC and DMA transfers with a STM32F3?

I'm looking to get my STM32F303 discovery board to continuously read from a temperature sensor using the ADC and DMA transfers to a memory location, but during the interrupt callback, the memory locat...
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tdot123

rust

stm32

dma

adc

stm32f3

Votes: 0

Answers: 0

HAL_UARTEx_RxEventCallback() circular DMA: What address is the data?

I'm using the HAL with an STM32F3xx, implementing UART receive with circular DMA. The data should continually be received into the huart->pRxBuffPtr buffer, overwriting old data as new data arrives...
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Captain Normal

stm32

stm32cubeide

stm32f3

Votes: 0

Answers: 1

Latest Answer

Thank you to Tom V for the hint. For future generations, here is the solution code - a function which returns true and gets the next available byte, otherwise returns false: bool uart_receiveByte(uint...
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Captain Normal

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