STM32 MCUs Embedded software

Ask questions and find answers on STM32Cube packages, including HAL, LL and middleware, and expansion software.

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How to read multiple bytes in SPI with HAL

Hi everybody,I've been trying for a while to read multiple bytes from an LIS3MDL accelerometer. I know how to read and write registers but one at a time. I can't figure it out the multiple part... So, if I want to read from reg 0x27 to 0x2D, I unders...

JMart.5 by Associate II
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Resolved! I2C Receive getting extra invalid byte using HAL

Posted on May 31, 2017 at 19:33I am using an stm32f030x8. I am using the HAL. Normal operation I can use I2C reads/writes with no problems; however, I can occasionally have errors in the receive data when more activity is taking place on the MCU. I ...

Calculating FS USB CDC transfer speed

I am sending a 140kB array from the stm32f746 DISCO board. I am using the core cycle counter to measure the speed. The SYSCLK is set to 50Mhz, 20ns per cycle. It takes 709 core cycles to complete the transfer. I calculate the transfer speed to be 70k...

Resolved! STM32F4 LWIP per-interface checksum calculation

Hello!I created a project for NUCLEO-F429ZI with two ethernet interfaces.The first interface is the card's own ethernet connection.The second is a USB-RNDIS virtual ethernet port.The two ethernet interfaces work, but only if I enable software checksu...

PTiha by Senior
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Resolved! STM32F429 Flash erase not working on specific sectors.

Hey,I'm adding a bootloader to my project that sits in the first 2 sectors of internal flash. while trying to preform the update it seems that i can't erase sector 3 all other sectors that follow this sector are erased properly.this is the code I'm ...

NYulz.1 by Associate II
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Are there a ethernet shield to STM32F303ZE?

Hi Guys,I´ve bought the STM32F303ZE Nucleo-144 kit. Are there a ethernet shield to this kit? If so, where can I read and buy about? A Shiled like this to other kit of st:https://www.carminenoviello.com/2015/08/28/adding-ethernet-connectivity-stm32-nu...