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Forum Posts

What happened to FSMC?

Many of the "older MCUs" like STM32F4xx had an FSMC. I've been thinking about switching to the newer STM32F7xx and have bought a Discovery board for STM32F7508, but there are no references to FSMC in the documentation. Apparently F765/7/8/9 have a "F...

DRobe.4 by Senior
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How do I find out when DMA FIFO is empty on STM32F446?

I'm working with the STM32F446 microcontroller and I'm using UART with DMA. The size of my UART packets is contained in the 3rd and the 4th packet bytes and I would like to use FIFO on the receive stream to increase the likelihood for successfully re...

arnold_w by Senior II
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Resolved! Are the VSS and AVSS pins internally connected?

Hello community, I have a little doubt. Are all the GND pins internally connected inside the microcontroller? Is the analog reference (AVSS) internally connected with the digital one (VSS)? If it not, how is the isolation between them?I don't know wh...

Luis Ber by Associate II
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I'm interested in using the STM32F4xx internal sensor in a deployed product. Any comments on temperature sensor accuracy and calibration are welcome and appreciated.

Per STM32F405/7 and per datasheet DocID022152 Rev 8 (stm32f4xx) ... are the values referred to in datasheet as "Temperature sensor calibration values", at addresses 0x1FFF 7A2C & 0x1FFF 7A2E (see section 5.3.22), actual factory-calibration results th...

Resolved! Usage SRAM1, SRAM2, SRAM3 with initialized arrays

I changed linker to use all of these three memories in domain D2. Problem is next :When i put for example uint32_t tempArray[4] = {0x2B7E1516 ,0x28AED2A6 ,0xABF71588 ,0x09CF4F3C} __attribute__((section(".sram1")));this line in my code, when MCU is in...

larenge by Associate II
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STPM33 power offset calibration not working

Hi ,I have been testing STPM33 power offset calibration.It seems not working as per the Calibration application note.The document says we need to write offset values to offset register in the sensor and then the read power will be substracting that o...

APV by Associate
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