About yhplx

yhplx · 2024-08-27

Hi Friends,In STM32H7 MCU, both M7 and M4 can access shared memory, such as D3 SRAM4. I am going to use a D3 SRAM4 address as a place to share some status information between M7 and M4. If a 32bits word is defined shown as below, can the access from...

yhplx · 2024-07-29

Hello, Friends,I am using ADC(16 bit) to measure the STM32H747 Internal Temperature and VrefInt based on external reference voltage (VDDA 3.3V, Vref+ 2.5V). The VrefInt result is 1.221V, which looks good. However, the temperature result is 150C, whic...

yhplx · 2024-08-27

Thank you, SoftLit.What if it is only written(W) in M4 side, and only read(R) in M7 side, can it be safe without using HSEM lock/unlock?

yhplx · 2024-07-30

Hi TDK,Thank you for the reply.

yhplx · 2024-07-30

Hi Rob,Thank you for the reply. I am using 2.5/3.3 factoring into the calculation temperatureADC3 read ts_data = 17237ts_cal1 = 12464 (30 C)ts_cal2 = 16403 (130 C)(100 * ((ts_data*33/25) - ts_cal1)) / (ts_cal2 - ts_cal1) + 30 = 291 CIs this temperatu...

yhplx · 2024-07-29

Hi Rob, Thank you for the reply. I am pretty sure my ADC set up is OK because it gets correct VrefInt values(1.221V) now. My main concerns are those temperature calibration values from the data sheet. Are they based on some internal reference voltag...

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Is the word(uint32_t) access atomic in shared memory in dual core STM32H7

STM32H747 Internal Temperature Measurement and Calculation

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Re: STM32H747 Internal Temperature Measurement and Calculation