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STM32Cube USB Host Library CPU time utilization seems too high

My MCU is STM32H753 on custom PCB. It is running at 480 Mhz. I use USB USB_OTG_FS it is clocked by RC48.On “Middleware and Software packs” I have enabled “FATFS”, “FREERTOS” and “USB_HOST”I generated project by using CubeMX 6.17 with “STM32Cube_FW_H7

35 minutes ago

dinesh_ee_bme_72Associate II

BNO055 getQuat() timing very different on STM32 vs Arduino — is my STM32 code an equivalent implementation?

I'm implementing getQuat() for the BNO055 on both STM32 and Arduino and getting very different times. On STM32H7 (HAL, 400kHz I2C) my equivalent code measures ~394µs typical with frequent spikes up to ~2573µs (mean ~912µs), but on Arduino with the Ad

474

48 minutes ago

cctsao1008Associate

Does STM32 MCSDK support runtime switch-over from 6-step control to FOC?

Hi ST community,We are evaluating motor-control architecture for a 3-phase BLDC/PMSM ESC project based on STM32G431 / STSPIN32G4.Currently we understand that STM32 MCSDK supports both:- FOC control projects- 6-step / trapezoidal control projectsHowev

50 minutes ago

waclawek.janSuper User

USB overrides GPIO settings for DP/DM pins, in 'L452, too

It’s long known that in ‘F4, if the USB/OTG’s PHY is switched on, it overrides the GPIO settings of its DP/DM pins.Today, I’ve spent some quality time debugging hardware, having been bitten by the same thing on a ‘L452.I didn’t expect this, given ent

STM32 MPUs Embedded software and solutions

asadullah4571Associate III

Clarification Required: DRAM Block B Necessity with Micron MT53E1G32D2FW 4GB LPDDR4 on STM32MP257

Dear Team,I hope this email finds you well. I am writing to seek your expert clarification on a critical hardware design decision we are currently evaluating for our STM32MP257-based custom board. --- Current Memory Configuration --- • SoC

283

ALAMI_OthmaneAssociate II

LWIP + freeRTOS + OPENER, Ethernet DMA Bus Error

I have followed the instructions in GIT to make ethernet works correctly on STM32H750 (setup TX/RX descriptors and their MPU config, also the LWIP heap and its MPU config, and the RX buffers).Everything seems working correctly after hours of setup a

111

Interface and connectivity ICs

frogmeAssociate

STWBC86 and STWLC38 require a firmware update?

Just got a new chip — does it come with factory firmware preloaded? If yes, what version is it? And will I need to re-flash the firmware before it can work properly?

162

LGrüb.1Associate II

STM32F4 I2C CR2 Peripheral clock frequency

Dear Forum,I'm using a STM32F401 and implemented the I2C as Target transmitter (Slave) answering a I2C question. I'm programming the I2C CR2 (FREQ Bits) Register as follows with correct speed (42 MHz)I2C1->CR2 = ((DRV_RCC_GetPCLK1Freq() / 100

1841

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The new ST Community platform is up and running. We’ve moved to a platform that is easy to use and better suited to the way you work and share knowledge.What you need to do As previously announced, the community has been in a transition period since

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forclaz00Visitor

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12 minutes ago

RostyslavVisitor II

STM32Cube USB Host Library CPU time utilization seems too high

35 minutes ago

dinesh_ee_bme_72Associate II

BNO055 getQuat() timing very different on STM32 vs Arduino — is my STM32 code an equivalent implementation?

474

48 minutes ago

cctsao1008Associate

Does STM32 MCSDK support runtime switch-over from 6-step control to FOC?

50 minutes ago

waclawek.janSuper User

USB overrides GPIO settings for DP/DM pins, in 'L452, too

STM32 MPUs Embedded software and solutions

asadullah4571Associate III

Clarification Required: DRAM Block B Necessity with Micron MT53E1G32D2FW 4GB LPDDR4 on STM32MP257

283

ALAMI_OthmaneAssociate II

LWIP + freeRTOS + OPENER, Ethernet DMA Bus Error

111

Interface and connectivity ICs

frogmeAssociate

STWBC86 and STWLC38 require a firmware update?

Just got a new chip — does it come with factory firmware preloaded? If yes, what version is it? And will I need to re-flash the firmware before it can work properly?

162

LGrüb.1Associate II

STM32F4 I2C CR2 Peripheral clock frequency

1841

DungeonLordsAssociate

Feedback forum

Allow to edit posts

User can edit his post until several houses. I suggest to allow edit post forever. And any other user should have ability to see post history. This is how stackoverflow works. And people really improve their posts.Also in stackoverflow there is abili