STM32 MCUs Products

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Resolved! Startup sequence for STM32H7 (dual core)

Hello, is there any documentation regarding the startup on both cores as I see there are several possibilitiess to gate the other core or to let them run directly in parallel. Nevertheless, CubeMx generates a common startup file which is shared I ass...

PButc.1 by Associate II
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  • 3 replies
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Resolved! Wrong reference temperature given in ds H747

Hi,in ds for STM32H747xI/G  , DS12930 Rev 2 , for Temp.sensor CAL2 : 130° (Parameter) is written here: BUT  max. temp for chip is 125° :So i assume, this is misspelled  , because in all other : (H743, H750, H7A3 ..) 110° + 30° are given.NOT 130° .   

AScha3_0-1721813254582.png AScha3_1-1721813336011.png
AScha.3 by Chief III
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  • 1 replies
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Resolved! Switching from FDCAN mode to UART mode

Hi,  i am using STM32H753z  i try to switching FDCAN GPIO is PD0, PD1  to UART tx and rx (same pins)now i changed FDCAN to UART tx side  is fine but in Rx side  i face issue ( no data is receiving to receive buffer).     #define CAN_AFR 0x99 #define ...

Naresh_ by Associate III
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  • 9 replies
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ADC Hanging

Hello, We are using STM32L412RBT6 MCU for our inverter and battery charger application. We are facing as issue like ADC stops reading and all the ADC results are giving same and random results. We are reading the result through DMA. We couldn't find ...

VasuManiV_0-1721817135600.png VasuManiV_1-1721817166440.png
VasuManiV by Associate III
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Resolved! UART loop in STM32H753

Hi    i am receive data using UART 4 and transfer same data back like loopback but data is mismatch.  same process in stm32f207 is working,    #include "main.h" UART_HandleTypeDef huart4; void SystemClock_Config(void); static void MX_GPIO_Init(vo...

Naresh_ by Associate III
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  • 7 replies
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Resolved! STM32H750 internal temperature sensor wrong reading

Dear community, on the ADC3 IN18 (internal temperature), I have an unconsistancy between the output of the ADC (reflecting the value of the temperature and the reference value TS_CAL1 and TS_CAL2 (0x3114 and 0x40C0).the ADC is in 16 bits and I got a ...

Serge76 by Associate II
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  • 11 replies
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Resolved! Must I use a MCU supporting Modbus?

We are planning to make a board using a STM32 MCU in a Modbus application. What we need is a Modbus-RTU. We found that STM32F030 can satisfy our needs and cheap enough but it does not support Modbus. Could we use STM32F030 in this case by special sof...