Ask questions, find answers, and share insights on STM32 products and their technical features.
Posted on December 07, 2015 at 15:33Hello there,I am using stm32f407vtg (1MB flash). Apart from user program, I need to store some additional data in the flash memory. I need 3 banks: 1kB, 16 kB and 64 kB. I just expirienced that I need to erase who...
Posted on December 07, 2015 at 18:24Hi to all, I realized my first pcb using a STM32F030K6 MCU. The project is a very simple one, that is no external oscillator, only two leds and a usart interface.I can regularly download the program using ''flash ...
Posted on December 07, 2015 at 17:13Hi have a SRAM Disk working using FATFS and USB. I can read and write files to the disk from my processor (STM32f427zit) but the files do not get updated in windows explorer on the PC. If if unplug the USB and th...
Posted on December 04, 2015 at 12:47I'm using STM32F411RE board and trying to communicate with SIM900 over UART. I'm simply trying to send.I put some parts of my code and would appreciate your help. I think there's some configuration issue in UART p...
Posted on December 07, 2015 at 09:27Hi All,Attempting to clear a pending bit in the EXTI_PR1 register via its bit banding alias clears another pending bit as well. When I try to clear the bit20 (RTC periodic alarm) after wakeup by writing 1 to its a...
Posted on December 06, 2015 at 13:35I have a few questionsforthe designand choiceof crystals 1. 32.768kHz. In datasheet is Recommended load capacitance max 15pF In AN2586 is ''To avoid exceeding the maximum value of CL1 and CL2 (15 pF) it is strongl...
Posted on December 06, 2015 at 11:57Hellousing MDK-ARM , I want from startup code change the initialization of global variable after warm reset (Pressing reset button) ... But I dont know where to look ?The idea is I want the variable keep its value...
Posted on December 03, 2015 at 17:15Hi All I can see a drive is attach when i plugin nucleo to my mac. If i unplug it and plug it in again, no drive is mount. How to fix this?thanksfrom Peter
Posted on December 07, 2015 at 04:02For the Chip STM32L151RBH6, we have only 1 bank, EEPROM writting halt the MCU. I make a test program to repeatedly write EEPROM. Use the code like below to write EEPROM: *(__IO uint32_t *)addr = data; 100 times r...
Posted on December 06, 2015 at 10:30I tried to copy some code from STM32F series, and make some change to let it run on STM32L151. But it doesn't work on my STM32L151RBH6 chip: code as below:int main(void) { /* System clocks configuration -------...
