About MJo.3

MJo.3 · 2023-08-28

Hello,I need to synchronize the time between the A7 and M4 cores. While I found some resources on the ST Community that accessing the STGEN timer from the A7 side.the article is belowhttps://community.st.com/t5/embedded-software-mpus/how-can-i-get-ac...

MJo.3 · 2023-08-11

Hello,I'm working on a project that requires precise time synchronization between two sensors.sensor1 is from M4, which is encoder data of motor.sensor2 is from A7, which is sensor connected to ethernet(UDP protocol)For Sensor2, I've set up PTP (Prec...

MJo.3 · 2023-07-09

Hi,I bought two same board and use one to test.After upgrade stlinux on this testing board, the cpu it can recognize is only one when the other one can recognize it two.could you give me a guide to fix it and why this happened?Thanks.

MJo.3 · 2023-06-25

Hello!I make my M4 chip communicate with the A7 with openAMP from the example code.I send the data from M4 and currently A7 doesn't do anything.code is like belowchar buffer[512];//in the 1ms interruptif(currentPosition < 512){currentPosition = sprin...

MJo.3 · 2023-06-06

HiI'm testing the firmware code using STM32MP157D-DK board.The current configuration for testing use st-link CN11 and ethernet to upload firmware program by using STM32CubeIDE.My question is, Is it possible to do the simmiar firmware program uploadin...

MJo.3 · 2023-08-28

I said it's about permission but STGENR can be accessed in non-secure mode.Does non-secure mode mean A7 Linux userspace?

MJo.3 · 2023-08-28

Hello, @Sarra.S I read the two links. but still, I can't understand how to access the STGENR.the first link says CNTFRQ register but it isn't listed on manual.in second one, I guess this part "4 Software frameworks and drivers " would be an answer bu...

MJo.3 · 2023-08-11

I checked software version and it's not same.I upgrade the os, and it works Thanks

MJo.3 · 2023-06-07

Hi!Thanks for fast response.I make the device that use both M4 and A7 chip and it's covered by a plastic cover.After the firmware code pass the test, It will be installed in M4 chip and the plastic cover will cover the chip. I will make a stlink port...

MJo.3 · 2023-05-08

I read the link and find out the clock can't be configured on M4 using cubeIDE while I'm using product mode(pin 1,2 are on). If it's not right, please reply it.thanks.

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Synchronizing Time Between A7 and M4 Cores on STM32: Accessing STGEN Timer from A7

Precise Time Synchronization Between M4 and A7 Sensor Data

[stm32mp157D] Two board have different number of cpu when I use lscpu

How VIRT_UART_Transmit works when the A7 doesn't do anything?

Is it possible to install the M4 firmware only with stlink line with STM32CubeIDE?

Re: Synchronizing Time Between A7 and M4 Cores on STM32: Accessing STGEN Timer from A7

Re: Synchronizing Time Between A7 and M4 Cores on STM32: Accessing STGEN Timer from A7

Re: [stm32mp157D] Two board have different number of cpu when I use lscpu

Re: Is it possible to install the M4 firmware only with stlink line with STM32CubeIDE?

Re: [STM32MP157D-DK1]What is the proper way to configure clock for M4?