About fantasylsdo

fantasylsdo · 2024-09-23

Deaers,I'm using stm32mp151fad and would like to transfter sram data to ddr in M4 side. I refer to the logic analyzer example https://github.com/STMicroelectronics/logicanalyser. The sram data could be copied into ddr immediately. // mask and trans...

fantasylsdo · 2024-05-25

Dears,I'm using STM32MP151 and have a uncertain quesion.In my cases, Both A7 and M4 need to access the register ETH_MACSTSR and ETH_MACSTNR to get time stamp.It's required to enable the ethernet clock on both side before accessing these registers, i....

fantasylsdo · 2023-11-19

Dears,I use STM32MP151FAD3 together with STPMIC1. Nowdays I monitored the voltage of vddcore and found it's not stable shown as below.Mostly it's around 1.2v while sometimes it's up to 1.33v .Referring to documentation, I guess it's casued by dynamic...

fantasylsdo · 2023-09-20

Dears,I'm using STM32MP157C-DK2 board in production mode.Now I'm debugging the firmware in M4 core. However, when I insert a breakpoint at DMA interrupt handler and wait for a while, it will crash the whole system (A7+M4) and lead to the reset.I also...

fantasylsdo · 2023-07-27

Dear ST team, Hope you're doing well.We have developed a custom board based on STM32MP151 with emmc. Currently, we are using STM32MP151 for flashing. The problem is each flash is taking around 15 minutes time and it will be a critical issue in our p...

fantasylsdo · 2024-10-05

Thanks for your kind reply. It helps a lot.

fantasylsdo · 2024-10-05

Hello Christphone,Thanks for your kind reply. I checked the dts. The memory size is 1GB.memory@c0000000 {device_type = "memory";reg = <0xC0000000 0x40000000>;}; And here is the output of /proc/iomem.c0000000-cfffffff : System RAMc0008000-c0ffffff : K...

fantasylsdo · 2024-09-27

I use 1GB DDR. And I find it's strange that M4 could write/read DDR address 0xd0000000， but 0xf7841000 still can't. Do I misconfigure anything? The DDR size is already to set to 1GB in device tree.

fantasylsdo · 2023-11-19

Thanks for your reply. How do I know whether DVFS is enabled or not? How to adjust these setting? Do you have any recommendation?

fantasylsdo · 2023-07-26

Hi Pactrick, You are correct. I'm using STM32MP151CAD Rev.B. Thanks for your kind advice. We will consider to change STM32MP15 Rev. Z devices.Thanks for your efficient reply again. I'll close this question.

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Access to DDR in M4

Enable ethernet clock on both A7 and M4

vddcore voltage is unstable

STM32MP157 DK2 M4 debug issue

Fast Image flashing in the manufacturing line

Re: Enable ethernet clock on both A7 and M4

Re: Access to DDR in M4

Re: Access to DDR in M4

Re: vddcore voltage is unstable

Re: STM32MP151 emmc OTP configure