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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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STM32F103VC - RTC Issue

Posted on May 08, 2012 at 16:24I'm bringing up a new board using the STM32F103VC, and I cannot get the RTC to function properly.  In the RTC initialization code, it always stops in the while loop waiting for the RCC_GetFlagStatus(RCC_FLAG_LSERDY) to...

jwormsley by Associate III
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starting my own PCB design with STM32

Posted on May 11, 2012 at 16:28Hello,   I have worked with STM32 on several demo boards. Now I want to start my own PCB board with STM32 microcontroller.   I like the free EDA tool of KiCad, which is available on both Windows and Linux. However, I ...

nsun by Associate
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USART with data parity

Posted on May 06, 2012 at 19:45 Hi all, I just wanted to share the surprise that I had today when, in order to have the USB CDC example virtualizing USART2 at 115200,8O1 on a STM32F102RB clocked with a 16MHz oscillator I had to configure ...

IRQHandler and RTOS

Posted on May 07, 2012 at 18:42Hi, I have a problem, because there are sensors signals a lot (at handler). The signals arrive at the same time, and then, sometimes, the counters don't stay the same each others, but I am simulating at the same signal...

incrementation of a timer by an input signal

Posted on May 09, 2012 at 17:18hi, i'm trying ton increment a timer in timing mode at each rising of a signal which arrive on an other pin here my code :     RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);     RCC_APB1PeriphClockCmd(RCC_APB1Pe...

claire by Associate III
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STM32F107 LWIP demo of TFTP server

Posted on May 11, 2012 at 03:42Hi, I looked thru' the tftpserver.c code, and noticed that there are possibilites of memory leak in process_tftp_request() if efs_init() or ls_openDir() fails, ie, upcb is not released. Can anyone confirm that? Thanks...

songgee by Associate
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I2S/SPI interrupts

Posted on May 10, 2012 at 17:07Hi, I am using STM32F105RB and I have a problem with an I2S master receive connection, using SPI2. I have configured SPI2 in I2S master Receiver mode, and enabled a SPI2 receive interrupt but immediately after SPI2 ini...

0-wait state

Posted on May 10, 2012 at 15:19Hello, I am evaluating the SMT32F407 and I am wondering how it is possible to execute code from flash with 0-wait state. In the datasheet on page 67 it is described that the number of wait states it 5 at the maximum C...