The new STM32H7R/S lines are built on the success of the STM32H7 series, offering even higher performance and security at a lower cost. The STM32H7R/S is a bootflash-based MCU powered by a Cortex®-M7 core running up to 600 MHz, with 64 KB of user fla...
I want to generate a PWM signal through the Timer.(STM32F104RB) In CubeMX, "channel 3" of timer1 (TIM1) is set to "PWM Generation CH3N", and "channel4" of timer1 is set to "PWM Generation CH4".The parameter settings are the same as shown below.(Presc...
Hello!I have strange issue with DMA mode for UART7. I have callback for data transfer complete, but if i sending new data - i have broken data. If i added timeout - all data sending Ok.does anyone have any thoughts?
Hi,I want to implement custom bootloader in STM32H730ZB, It has 128KB of Flash and only one sector. If I want to load image using bootloader then, I need to erase particular portion of flash. Is there any support to erase flash by flash word? If I er...
Hi guys,I'm a little confused about the trigger voltage for rising-falling triggered interrupts. As my previous understanding, the trigger voltage should be Vih and Vil. But some one told me Vih and Vil is not for edge triggered interrupts. The thing...
I want to interface to an existing RS-485 bus where the 9th bit (normally reserved for parity) is set to 1 for the first two packets of each frame (as an addressing mechanism) and then cleared to 0 for the subsequent "data" bytes.If I set PCE=0 in r...
I need the callback, to clear the cb4.DMA_Active flag and update a pointer when it finishes. I cannot step through it because it starts sending data over and over as I step through it and does not call the callback. First time msg points to "12345678...
I'm having trouble with my IAP erase and write of Flash in my custom bootloader. I need to overlap comms activity with Flash erase so comms doesn't time out, but despite attempts to force the bootloader code, ISRs and vector table into SRAM, my suspi...
In my project I write some bytes to the internal EEPROM of a STM32L152CB. While running a debug session I can verify that the data has been stored correctly. At power up I read the EEPROM data and store it in some variables. As the MCU is configured ...
In code, we do not have call for changing RDP but we have a logic to reset IWDG_STOP bit after wakeup from sleep mode. We are facing this option byte corruption problem when battery drops below 0%. (We do not have HW support for cutting off power for...
The "operating temperature range" is specified as +85 deg. C high limit.Does this really mean the MCU can operate with an ambient temperature of 85 C ? Only the maximum junction temperature is specific in the data sheet.