Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on January 26, 2015 at 11:25 Hey there, today i wanted to change the brownout level from 1 to 4, but i failed. I'm using the STM32L151VDT6 and the following code at startup if ((FLASH_OB_GetBOR() & 0x0F) != OB_BOR_LEVEL...
Posted on January 02, 2015 at 08:38Hi everybody, i'm working on a custom board and experiencing a strange problem: if the two cables of SWDIO and SWDCK (they go from a stm32f4 discovery board to my board) are close Keil doesn't recognize the cortex ...
Posted on February 03, 2015 at 19:03 The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on February 04, 2015 at 12:58I am using ULINK-PRO to debug a STM32F4. I have connected the target as per the Cortex Debug+ETM 20 pin. I have connected TRACE_D1 to nTRST as I believe these pins are multiplexed within the ULINK PRO. i.e. nTR...
Posted on February 04, 2015 at 07:47 Hello, we have a small software (bootloader) running on a STM32F103. In a new project, we selecte a ''smaller'' type the STM32F105 with less pins. In the bootloader we set a push pull port high. On the new contro...
Posted on February 04, 2015 at 14:06 hi i have an stm32f4 and i try to write and read flash value. #include < stm32f4xx_hal.h > #include < stm32f4xx.h > #include < stm32f4-hal /stm32f4xx_hal_flash.h> float dataflash1 = ...
Posted on February 04, 2015 at 06:59The original post was too long to process during our migration. Please click on the attachment to read the original post.
Posted on February 04, 2015 at 01:24 Hi there. I can't get my head around this and was hoping someone could help ... despite having set a higher priority to the SysTick irq, it doesn't seem to decrement an integer variable when called fro...
Posted on February 03, 2015 at 02:20Hello, I am endeavoring (as with every hair-pulling experience with the STM32F4) to measure/capture LOW frequency pulses. For this, I'm assuming I need to use a 32 bit timer: TIM2 or TIM5. This is a bit of a dilem...
Posted on February 02, 2015 at 00:12 I'm testing ST's USB Virtual COM Port example code(fromSTM32_USB-FS-Device_Lib_V4.0.0) on STM32F103ZET6 board，and the binary that is produced could not enumetate when compiling with gcc(-O0 or -O2 or -O3)....
