STM32 MCUs products

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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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STM32L152 ADC DMA restart question

Posted on August 20, 2013 at 17:35 Hi, I'm trying to implement ADC multichannel scan (single sampling) with DMA on STM32L152 but there's a problem with conversions start. First SW conversion start takes the samples but following start com...

DMA from stack, why not?

Posted on August 20, 2013 at 20:03Hello, I was writting a driver for SPI transfer using double DMA ... to test it I wrote a few lines of code that prepared a buffer (locally), and sent it over SPI. The result was the first 4 bytes were ok then the d...

root by Associate II
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STM32 DMA and ADC

Posted on August 20, 2013 at 11:41STM32 DMA and ADCQuestions about the STM32 DMA and ADC: I now have the following requirements: The sampling signal list: A1 A2 B1 B2 B3 B4 B5 Suppose I cycle of PWM carrier for 5 KHZ. I hope B1 ~ B5 signal acquisiti...

avwa by Associate
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STM32F407 - 2 RAM banks

Posted on June 11, 2013 at 23:11I have a stupid question: F407 has 2 RAM banks - 128K with DMA access, and 64K no DMA access. 1) I saw that in all examples only the 1st bank used. 2) I saw that in all IAP Firmware Upgrade exampler, bootloader search...

alexandr by Associate II
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What kind of ECC in stm32l1xx?

Posted on August 20, 2013 at 12:16Hi everyone. Does anybody know what kind of ECC method is used in stm32l1xx chips for non-volatile memories (flash & eeprom) ? The pm0062 document just generically mentions ECC without going into much detail. There ...

STM32F205 and USB virtual com port problem

Posted on August 13, 2013 at 14:36 Hi all,  I'm using STM32F205VGT,STM32_USB-Host-Device_Lib_V2.1.0 and virtual com port driver ''VCP_V1.3.1_Setup_x64.exe''. The PC works with Windows 7/64bits. When I start USB device the initialization of USB start...

donev_g by Associate II
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User button

Posted on August 19, 2013 at 12:18hello i'm trying to make the user button working with a simple led program here is the code and please tell me what's the problem (it worked just when i keep pushing user button then make a reset): ****************...

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