STM32 MCUs Products

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Forum Posts

Using a Timer as a Divider

Posted on January 25, 2012 at 10:13Hi Can somebody point me in the right direction. I have a peripheral that uses a strange SPI where the data is triggered on both rising and falling edge of the clock. I have heard the i could use a timer as a divid...

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mb2 by Associate II
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question about startup vector

Posted on January 25, 2012 at 14:44I am learning how STM32 works. I looked at startup file and starup vector using simulator and example project. And I have question (STM32F105): 1. First dword location of vector is stack pointer and it is initializ...

aalmax by Associate II
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  • 2 replies
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FTP TCP/IP low cost.

Posted on January 24, 2012 at 12:00Hello I am looking for a TCP / IP stack that integrates affordable DCHPclient, ''FTP client'' and filesystem. Ported to a STM32F4xx. LwIP not implemented. NicheLITE requires additional packages. Price? Open-source...

IHS1 by Associate II
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  • 2 replies
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Is there any STM32 UBS Host lib to interface with a USB Flash?

Posted on January 25, 2012 at 14:13Hi, i need to perform some field logging with a STM32. I already implemented STM32 as a USB device, but now i need it to act as a Host. Is there any code example to connect the STM32 to a USB Mass storage device?Th...

luisf by Associate II
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  • 0 replies
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TIM5_CH1_ETR

Posted on January 23, 2012 at 11:02I need all four channels on TIM5 for input capture. According to the data sheet, TIM5_CH1 is available on PA0. On PH10, a signal called TIM5_CH1_ETR is available. Can I use this pin as a normal channel 1 input, or ...

torleiv by Associate II
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  • 4 replies
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stm32f107vc usart

Posted on January 23, 2012 at 17:49Hi,I am trying to get the usart to work on the olimex stm32-p107 board. I setup the GPIO ports and USART, but cannot seem to send, or receive any data. Has anyone has this problem? or any ideas?  Here is my code: R...

Did I brick STM32 Discovery Board ?

Posted on May 01, 2011 at 19:54I am new to ARM. I got the STM32 Discovery board.  (STM32F103RGT6 chip) I made a quick code that uses the serial port.(code I copied from Keil website that uses the serial port, and just modified very slightly so it al...

vito_1978 by Associate II
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  • 6 replies
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DMA Interrupt handler not working

Posted on January 17, 2012 at 17:30I'm using the standard periphery library for this board. The DMA is working correctly in combination with DAC (memory to peripheral transfer) but I can't get the cpu to execute the interrupt handler for DMA1_Stream...

giu by Associate II
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  • 1 replies
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USB FS problem while handling other interrupts

Posted on January 24, 2012 at 08:48Hi, I am using STM32F207xx for my application. In my Application,I am using OTG_FS ,FSMC & DMA for TFT Driving. If i Disable all other interrupts except for USB_FS,then USB  works fine. But if all other interrupts(...

STM32F4 Discovery not working without reset

Posted on January 23, 2012 at 18:50I have an STM32F4 Discovery board; recently I just had uploaded some code pertaining to the PWM example where I made PD12-15 some PWM signal so I could see it working with the LEDs on board. The program uploaded an...