About MLade.1

MLade.1 · 2022-08-07

On the NUCLEO-G474RE board I have tested the QSPI interface with a flash memory. The interface seems to work properly but the read transfer in quad mode is slower than expected.To analyze the issue I have reduced my test program to two calls: HAL_QSP...

MLade.1 · 2022-04-07

I tested the GPIO performance on both cores CM7 and CM4. To do this I used the following loop: /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ LL_GPIO_SetOutputPin(DBG_D...

MLade.1 · 2021-12-02

I'm trying to build the example project "Tx_Thread_Creation" for the NUCLEO-F429ZI. During the build process with the MDK-ARM (uVision) V5.28.0.0 toolchain I got the following linker errors:linking... Tx_Thread_Creation\Tx_Thread_Creation.axf: Error:...

MLade.1 · 2023-03-26

@SStor: It was a very good idea. Thank you!The issue is solved now. The screenshot shows a read of one flash page in quad mode at 100 MHz: The command "Fast Read Quad I/O (EBh)" needs 532 SPI CLKs. The duration should be 5,32us, but there is a small ...

MLade.1 · 2023-03-25

I have also tested the SPI/QSPI speed on STM32H755. The STM32H755 seems to have a similar problem.Test conditions: hardware: NUCLEO-H755ZI-Q (core M7, 400 MHz), W25Q128JV software: STM32CubeMX 6.8.0, STM32Cube FW_H7 V1.11.0, MDK-ARM V5.36.0.0 used HA...

MLade.1 · 2022-04-13

Thank you for your feedback.I performed some further measurements using the DWT and an oscilloscope. It seems I have to accept the longer GPIO times of the CM7 core. Summary of my measurements:Core CM7, 480MHz ---------------- LL_GPIO_SetOutputPin(DB...

MLade.1 · 2021-12-04

Hello Haithem Rahmani (ST Employee),I tried the suggested solution, but it was not possible to build the project with the MDK-ARM 5.28 without errors.I installed the MDK-ARM 5.36 on another PC. The preconfigured example and my own project from scratc...

MLade.1 · 2021-12-02

Dear @Haithem Rahmani_O (ST Employee),thank you for the fast feedback.I'm using a preconfigured project, that has been delivered with the "X-CUBE-AZRTOS-F4" package version 1.0.0 (location on the disk: C:\Users\xxxxxxxx\STM32Cube\Repository\Packs\STM...

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STM32G474 QSPI issue - slow read transfer in quad mode. Clock stretching?

STM32H7 Dual-Core: GPIO access on CM7 6 times slower than on CM4. Why?

Azure RTOS / MDK-Arm - Linking errors

Re: STM32G474 QSPI issue - slow read transfer in quad mode. Clock stretching?

Re: STM32G474 QSPI issue - slow read transfer in quad mode. Clock stretching?

Re: STM32H7 Dual-Core: GPIO access on CM7 6 times slower than on CM4. Why?

Re: Azure RTOS / MDK-Arm - Linking errors

Re: Azure RTOS / MDK-Arm - Linking errors