About KDJEM.1

KDJEM.1 · 2024-12-11

Introduction The delay block is an independent peripheral integrated within an STM32 MCU, for example, an STM32U5. Its role is to introduce a phase shift relative to the input clock. The user application configures the phase of the output clock. This...

KDJEM.1 · 2024-11-28

Defining VCAP VCAP is the digital core supply provided by the internal LDO regulator. VCAP pins are present only on LDO packages (without SMPS). STM32U5 external capacitor on VCAP pin recommendations For the STM32U5 series, the external capacitor on ...

KDJEM.1 · 2024-09-25

Introduction The purpose of this article is to provide some external memories tips and tricks, frequently asked questions, and a list for useful link resources. 1. Overall FAQs for QUADSPI/OCTOSPI/HSPI/XSPI 1.1. How to check whether a device is sup...

KDJEM.1 · 2024-08-05

There are two possible solutions for connecting two quad-SPI memories using only one OCTOSPI interface. Solution 1: Use a dedicated bit in the OCTOSPI_CR register for external memory selection: MSEL bit for STM32H5, STM32U5, and STM32L5 series or FS...

KDJEM.1 · 2024-07-30

Maximum FIFO size with the OCTOSPI interface The FIFO is sized into the targeted product, typically either 32 or 64 bytes depending on the product. Refer to the reference manual to check the maximum size in the "FIFO and data management" section. Co...

KDJEM.1 · 2024-12-18

Hello @JS5, Compared to the bill of materials, version D02 vs. C01: - C9, C10 moved from 20 pF to 33 pF (foot capacitors of 8MHz STLINK XTAL) - Added new C34 470 nF (due to MEMS change) - Added new R45 10K (due to MEMS change) - U3 changed from L3GD2...

KDJEM.1 · 2024-12-18

Hello @JS5; I reported this issue internally. I will come back to you with more details as soon as possible. Thank you. Kaouthar

KDJEM.1 · 2024-12-18

Hello @Mohammed Eshaq, Which STM32H7 are you using? The dummy cycle must be configured depending on the memory datasheet. As mentioned in the memory datasheet, for erase operation, the dummy cycle is equal to 0. Are you using 4-BYTE 4KB SUBSECTOR...

KDJEM.1 · 2024-12-18

Hello @Srmssenthil, I recommend you to take a look at Audio_playback_and_record in STM32CubeF4 package under this path \STM32Cube_FW_F4_V1.28.1\Projects\STM32F4-Discovery\Applications\Audio\Audio_playback_and_record This example shows how to use t...

KDJEM.1 · 2024-12-16

Hello @nicolas, This typo is fixed in AN4777 - Rev 5. Thank you for your contribution to STCommunity. Kaouthar

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User Activity

How to calibrate the delay block with the OCTOSPI interface

Recommendations for the external capacitor on VCAP pin (STM32U5)

Overall FAQs for QUADSPI/OCTOSPI/HSPI/XSPI

How to connect two quad-SPI memories using only one OCTOSPI

FAQ: How to configure FIFO with the OCTOSPI interface

Re: STM32F072B-DISCO and MEMS module (I3G4250D vs L3GD20)

Re: STM32F072B-DISCO and MEMS module (I3G4250D vs L3GD20)

Re: Block Erase Function Issue with MT25QL01GBBB NOR Flash on STM32 MCU

Re: Example of Audio data Receiving and Transmitting using Stm32F407G-DISC Board

Re: documentation error AN4777