STM32 MCUs Products

IWDG is not working

Hi,In stm32f051, iwdg is not working, I think.After enable iwdg, encounter the while(1); loop , reset is not issued.NRST pin is connected to RC reset circuit.BRPaul

Can ST please review the requirement of I2SDIV > 2 in SPI/I2S of 'F2/'F4?

In SPIx_I2SPR, I2SDIV=1 is probably fine as long as ODD is kept 0.https://community.st.com/s/question/0D50X00009XkYmHSAV/f2f4-i2s-extclockThis constraint probably unnecessary puts pressure onto using higher than necessary I2S clock, and restricts cer...

For the single-port DMA, please document better EN-related behaviour

In the single-port DMA, CCR.EN when set, it locks most of the registers, including all other fields of the CCR register itself.Moreover, EN is not autocleared when single-transfer is complete. This is not documented clearly anywhere.These two things ...

Used SPI 4 for two different interfaces

Hi All,I am using STM32F427ZIT6 MCU for one project. I connected SPI4 for two different interfaces by mistake. Pins 1,4,5 for one interface and pins 64,65,66,67 for one interface.I want both the devices working simultaneously. Is there any solution f...

Does anyone know why the interrupt numbers inside <simplelink_msp432p4_sdk_3_20_00_06/source/ti/devices/msp432p4xx/driverlib/interrupt.h> do not match Table 6-40 NVIC Interrupts in the MSP4x1 Datasheet SLASEA0A –DECEMBER 2017–REVISED FEBRUARY 2018?

Apparent bug in the header file? Best I can tell, the Interrupt Priority Mask Table that follows appears correct?

SD Card Time out STM32F779II

I'm using STM32F779II With a microsd card. That is clocked at 48MHz.When writing to the sdcard as a block, I get HAL_TimeOut, using that function: err = HAL_SD_WriteBlocks(&sd_handle, (uint8_t *)src, block_num, num_blocks, 6000);After writing I wait ...

HOw to fix this below error failure at line:6 and failure at line 13 in "Target Software Startup scripts"

Receiving a burts of data from SPI using DMA

Hi, I am using an STM32f407VGT MCU and I am trying to receive a burst of data of 112 bytes from SPI1 and storing it in an array buffer, initially set with all its elements to 0.According to the RM0090 TRF this should be easily done with the DMA, but ...

Linker Error: "no definition for __write".....

Hey everyone, I am using IAR and a STM32F401RE.When I am setting the library low-level interface implementation to "None", I get the following linker error:Error[Li005]: no definition for "__write" [referenced from fflush.o(dl7M_tlf.a)]Error[Li005]: ...