Forum Posts
Resolved! Is there any way to call callback function of RTC Alarm when waking up device from standby mode?
I am trying to call rtc alarm at regular interval and want to call some code in non polling mode at every rtc alarm is fired. I know this can be done with RTC alarm callback function. But when we are in standby mode this call back function is not fir...
STM32F407 4GB NAND Flash ECC computation while read and write are different, but the data is the same.
This is the code I'm using to read the page of 16 data chunks of 256 bytes each:#define K9xxG08_ECC_Enable() FSMC_NAND_DEVICE->PCR2 |= FSMC_PCR2_ECCEN #define K9xxG08_ECC_Disable() FSMC_NAND_DEVICE->PCR2 &= ~FSMC_PCR2_ECCEN #define K9xxG08...
Resolved! STM32 and HC05 Bluetooth code
Hello guys good day. May I ask for your advise regarding the code to interface a slave bluetooth to STM32F103C8. I bought this HC05 module and connected to the UART lines of the MCU. Baud of communication set to 9600. I am trying to enable an LED con...
Problems when polling for Write Enable bit in qspi NAND flash status register
I am using the Nucleo-L4r5zi with the octospi peripheral to communicate with a qspi NAND flash chip (W25N01GVZEIG). The octospi peripheral is set up in status polling mode to poll the state of the Write Enable bit in the flash status register. This i...
Why STM32L053 does not wakeup from ALARM in STANDBY mode?
That is my code below (Nucleo STM32L053). RTC works from 32768 quartz (LSE). Blue Button disconnected by eliminating of the SB17. Additional LED is connected to PC13 instead of the button. So, the device wakes up normally, when I set high level on wa...
Resolved! How I can distinguish, ALARM A or ALARM B waked up STM32L053 from Standby mode?
My controller can be waked up from Standby mode by Alarm A or Alarm B: Alarm A every day and Alarm B every minute. Are there any flags (or another means) to know, what event (Alarm A or B) was cause of the waking? That is the problem, because all re...
backup RAM for STM32H743 device
according to the manual it says 4 Kbytes of backup SRAM in D3.D3 start address is 0x38000000in manual address for backup RAM is 0x3880 0000but below is the behavior observed.code example. __HAL_RCC_BKPRAM_CLK_ENABLE(); HAL_PWREx_EnableBkUpReg(); HAL...
STML433RC (nucleo kit) LPUART1 not working
Hello,I have generated a default project with cubeIDE for a nucleo L433RC. I have only enabled LPUART1 with default parameters. I just change the baud rate to 115200.I add in the main : /* Infinite loop */ /* USER CODE BEGIN WHILE */ char out[6...
I use the core STM32G431KBT6 the 10v power supply via Vin I want to monitor a variable via STm Studio, but when I insert the USB into the pc the variables are reset
hi, Reading the UM2397 manual on page 12 chapter "Power supply" describes the possibility of powering the core through Vin in a voltage range of 7V-12V, I power it at 10v (the power supply can supply 500mA sufficient current for a core). The card the...
