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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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Contiki on STM32L053 Nucleo

Posted on April 12, 2016 at 13:12Hi All New to STM32 but not new to MCU's (Have done projects on TI, Microchip, Atmel, etc) I'm busy to evaluate Contiki on STM32L053 Nucleo to compare to the MSP430 implementation of the Contiki stack.  On MSP430 I h...

CubeMX v4.14 USB Host Problem

Posted on April 04, 2016 at 09:06Hello. I use STM32F407VET6 device. I try to use USB Host (Mass Storege Host Class). Project (for IAR) generate correctly. I try to compile for C++ and have ( Error[Pe067]: expected a ''}'') multiple errors. I use fri...

mr23 by Associate II
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LPM_ExitStopMode() Does not Execute after return from STOP

Posted on April 12, 2016 at 08:56We're using the STM32CubeExpansion_BLE1_V2.5.2 on a STM32L4-Nucleo + BlueNRG-Expansion. It comes with low power manager drivers. The STM32L4 switches between RUN and STOP mode every ~ 1 sec. It uses RTC wakeup timer ...

jp1 by Associate III
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STM32F446 Vcap value

Posted on April 09, 2016 at 22:47I'm designing a product that uses the STM32F446. The reference manual states that Vcap is increased to 4.7uF (from 2.2uF for the F405) on page 15 and later on page 72 (power supply scheme) it lists 2 x 2.2uF caps on ...

mluessi by Associate II
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DAC

Posted on April 11, 2016 at 10:26I would like to create a 16 bit DAC in STM32F103RET6. ButSTM32F103RET6 only has 12 bit DAC. How do I implement a higher resolution DAC in STM32F103RET6?Thank you. Please see link belowhttps://www.google.com/url?sa=t&...

arh8081 by Associate
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LIS3DSH I2C understanding

Posted on April 10, 2016 at 19:56Hello Community,I am currently trying to get my head around the LIS3DSH accelerometer using the I2C HAL library, however I am having a great deal off difficulty in achieving anything.My aim is to simply read the axes...

b4038201 by Associate
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Unable to shut down the USB core

Posted on April 11, 2016 at 17:08I'm currently having some issues with the USB core on the STM32f4. Before enabling the USB core the VBUS line (GPIO A9) is low as would be expected. when a usb cable is plugged it I detect this and enable my USB core...

Timer with external clock in gated mode

Posted on April 11, 2016 at 09:39Hi, I would like to configure a timer as a slave in gated mode which has an external clock from another timer. So in my setup I do would have three timers. A ''clock timer'' which outputs a given clock frequency, a m...

smrtkai by Senior
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Allocate HEAP into external SDRAM with Keil-RTX

Posted on November 24, 2015 at 09:02 Hello! I'm developing an application which requires the heap to be located in a 32MB off-chip SDRAM. I'm using Keil RTX in the project.The problem is the application falls when a function malloc() is ca...

y_ by Associate
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