STM32 MCUs Products

STM32L071RBT6 is in use. There seems to be a TTL port and a CMOS port, but where is the description of which port is TTL and which port is CMOS? Also, how should I switch when all ports support TTL and CMOS?

Hard fault error while step into or step over, But not during free run of debuggging

During the debugging of my code, I see a strange behavior.I am using STM32F767ZI and trying to debug using ST-Link flashed with jlink firmware.While debugging the firmware using the gdb, at a particular assembly instruction, the control jumps to hard...

How to obtain a Burst Write and/or read of external PSRAM

I think the configuration is OK but I don't know how to have a burst Write and/or Read operation.My goal is to have the fastest possible data transfer with a burst lenght of 128 bytes.Having a look at HAL I can't identify the correct function to be u...

STM32F103C8 Incorrect HCLK Issue

Posted on February 04, 2016 at 06:05 I am using a minimal develpment board based on STM32F103C8. The board has an external crystal of 8Mhz. I am trying to use PLL as my clock source (with input from HSE 8Mhz) upon boot but facing the foll...

Ethernet

Can't we connect ethernet port(ARJE0034) to controller directly without using ethernet fiji?

Reinitilaization of ADC3 in DMA mode not working

Hey Guys,Iam using a STM32F429IDISCOVERY board with ADC3 in dma mode. Sometimes on special usage circumstances ( a lot of stuff is happening in parallel) there is an overrun error, because the processor is not fast enough to get the packages. Normall...

Flash memory status register EOP bit (end of operation status bit) datasheet not clear

Re to document STM32F2xxx Reference Manual Rev1. Edited: STM32F72xxxUnder Flash register section, it says:Bit 0 EOP: End of operationSet by hardware when one or more Flash memory operations (program/erase) has/havecompleted successfully. It is set on...

Switch over RTC from LSE to LSI while running

Hello all!Using STM32L433, RTC is initialized with LSE, works fine.In run, I want to switch to LSI and do certain steps and want to get back to LSE. What is the way to switch over RTC source LSE<->LSI ? I read some thing about backup domain. Please g...

How can I reset a AT24C02A EEPROM chip (I2C) from a STM32F103XB?

I've inherited some source code for a custom board that reads EEPROM data from an Atmel AT24C02A chip. The code is based on the older STM32F103xx firmware library (not the newer STM32Cube code).Most of the time, everything works fine. However, it o...

how to use bootloader through USART to download firmware into stml031f6

Hi,I am trying to download firmware through USART into a stml031f6 device. The executable I can find from ST right now is the "STMFlashLoader.exe" but it is not compatible with stml031f6 (cannot find the stmap file for this device). And I am trying t...