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Questions tagged [stm32f0]

STM32 F0 are entry-level ARM Cortex-M0 MCUs from ST Microelectronics.

124 questions
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3 answers

How can I change the start address on flash?

I'm using STM32F746ZG and FreeRTOS. The start address of flash is 0x08000000. But I want to change it to 0x08040000. I've searched this issue through google but I didn't find the solution. I changed the linker script like the…
Hans
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11
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8 answers

Arduino millis() in stm32

I am trying to port some Arduino library to stm32. In Arduino, millis() returns the number of milliseconds since boot. Is there an equivalent function in stm32? I am using stm32f0 MCU.
user6064424
8
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1 answer

EEPROM emulation on stm32 using HAL drivers

I am trying to emulate EEPROM on stm32f0. There is an application note provided by STM. In the sample main.c, int main(void) { /*!< At this stage the microcontroller clock setting is already configured, this is done through SystemInit()…
user6064424
5
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1 answer

STM32CubeIDE Break at address "xxx" with no debug information available, or outside of program code

I'm busy bring up some new hardware with a STM32F030C8 mcu. I'm using the STM32CubeIDE with gcc. I'm very new to microcontroller development and this is my first project with ST and their tools. This is a very basic program that just triggers a…
TJ Snyman
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5
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4 answers

Calibrating STM32 ADC (VREFINT)

I'm trying to read VDDA on an STM32F042 microcontroller. I'm getting unexpected results with VDD at 3.29V. I must be missing something fundamental. output: VREFINT=1917; VREFINT_CAL=1524; VDDA=2623 mV VREFINT=1885; VREFINT_CAL=1524; VDDA=2668…
iter
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5
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1 answer

External Interrupt triggered after setting pin

I'm trying to get the external interrupt running on a Nucleo-F030R8 and hit a wall. Everything is configured and runs just fine in step mode but when I'm connecting my board to another testboard with a simple jumper wire and run the same code, an…
Heiko Thober
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5
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3 answers

Best way to add delay/do nothing for n cpu cycles

I need to add a delay into my code of n CPU cycles (~30). My current solution is the one below, which works but isn't very elegant. Also, the delay has to be known at compile time. I can work with this, but it would be ideal if I could change the…
gugelhüpf
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5
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1 answer

Why does UART transmit interrupt fail to work in this case?

I am using stm32f0 MCU. I have a simple UART echo code in which every byte received will be transmitted out. I tested that it works. Here it is; uint8_t Rx_data[5]; uint32_t tx_timeout = 0; //Interrupt callback routine void…
guagay_wk
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4
votes
3 answers

Cannot transmit every characters through UART

I am using stm32f0 MCU. I would like to transmit every single byte received from the uart out of the uart. I am enabling an interrupt on every byte received from uart. My code is quite simple. uint8_t Rx_data[5]; //Interrupt callback routine void…
guagay_wk
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3
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1 answer

How HAL_UART_Transmit_IT manages sending data on serial on the STM32F091VB

I'm trying to understand how the STM32F091VB manages the send of data via serial protocol with the function HAL_UART_Transmit_IT() At the moment I've a function called in the main() that creates the packet and send it via serial; it is something…
NicoCaldo
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3
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1 answer

STM32 HID Keyboard

I am trying to use and STM32F0-disco as a keyboard for a Windows PC. I'm having a problem with the characters that are being printed. The code below waits until the onboard button is pressed then should print the three characters once. /* USER…
rosmdgl
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3
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3 answers

HAL_SetDate sets the year to wrong value

I'm using STM32F030RCT6 with CubeMX. Device is a datalogger and RTC is the main thing that cannot fail. On Errata Sheet there is something about RTC Shadow Register. I configured CubeMX to not generate MX_RTC_Init() function and it has been working…
sbtek
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3
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2 answers

Individually read distinct inputs with STM32F0 ADC

STM32F072CBU microcontroller. I have multiple inputs to the ADC and would like to read them individually and separately. STMcubeMX produces boilerplate code which assumes I wish to read all of the inputs sequentially, and I have not been able to…
ctag
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3
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1 answer

STM32F072RB does not receive/send data over SPI in slave mode

I am using the STM32F072RB uC to receive and transmit data over SPI2 in slave mode with the following configuration: CR1 = 0x0078 CR2 = 0x0700 AFRH = 0x55353500 MODER = 0xa2a0556a The register APB1ENR is also properly configured. The current…
Pika
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3
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2 answers

Right formula for calculating temperature sensor using STMF401RE Nucleo?

I'm using STM32F401RE Nucleo board to measure the ambient temperature. After the sampling process, I receive a digital value from ADC_CHANNEL_TEMPERATURE and I want to convert this digital value into C°. I searched on the internet for this and I…
BL_
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