STM32 MCUs Products

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Forum Posts

STM32F4 PSRAM configuration

Posted on September 03, 2014 at 10:26Hello, At the moment I am designing a PCB with the STM32F4 and PSRAM. Are the FSMC_NEx signals the bank switch signals? Can I use all the FSMC_NEx signals for the PSRAM or are certain banks only for a certain me...

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ad23 by Associate
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STM32F103VC with MMCCard

Posted on September 01, 2014 at 17:11Hi,I want to use 512 Mb MMC card with STM32F103VC.Hardware is ok . Do you have any ideas on this issue? any driver for STM.How can I read and write file in MMC card ? Regards,

nafb by Associate II
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SPI DMA Problem, please help

Posted on September 03, 2014 at 00:58I'm trying to run SPI on DMA Mode for STM32F407 (Discovery). I'm stuck with the below code, with the oscilloscope showing SPI CLK but no data. I'm wondering:1. How do you do slave select in DMA Mode?2. Is the DMA...

Why does usb_bsp.h include stm32f4_discovery.h?

Posted on September 03, 2014 at 23:30The STM32F4-Discovery_FW_V1.1.0 library has USB code that I'm using in an STM32F4 project for USB HID support.  usb_bsp.h has the board support package function definitions.  I'm implementing these for my own cus...

avoid returning from interrupt

Posted on August 30, 2014 at 23:22Hi Forum, Is there any way to avoid returning from an USART1 interrupt? The booting process of our unit takes some time so we want to jump to the main menu quickly by pressing a key on the keyboard. This works and t...

stenasc by Senior
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VREF+ not working as expected

Posted on September 03, 2014 at 19:53Greetings all -- I have a custom board built around the STM32F303VC, which has separate pins for VDDA and VREF+.  In the interests of keeping the voltage reference quiet, a 3.0V regulator is attached to VREF+, an...

aaron by Associate II
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USB multiple CDC firmware

Posted on September 02, 2014 at 21:53Hi, I'm working with the STM32F40G EVAL board, and used the STCube to generate USB CDC middleware and it works fine. I am interested in modifying the STCube generated firmware, and having the device enumerate as ...

c_uimran by Associate II
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spi sending data adress issues

Posted on September 02, 2014 at 19:14 Hi guys , i am trying to figure out how to get stm32f4 discovery board accelerometer work. After checking the lisd302dl datasheet and reference manual (that wasn't too much helpful) ,i went to forum wh...

d4ng3r09 by Associate II
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Maximum VCP speed???

Posted on September 02, 2014 at 02:50I am using STM32F2xx and connect it with FT232 chip using UART interfacehttp://www.ftdichip.com/Products/ICs/FT232R.htmand then I connect FT232 chip to my Windows PC, I wrote an application in my PC using .Net to...

ho by Associate II
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How to deal with Integer Overflow?

Posted on September 03, 2014 at 04:43For evaluation purposes I got the STM32F0 discovery kit (STM32F030R8T6) with Cortex-M0, and I am using it with the IAR embedded workbench. From the datasheet I know it has no FPU, which is what I need. In my proj...