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STM32 Remap function issue

Posted on December 03, 2014 at 14:23Hi all, I'm working with stm32f103zhc6 mcu and the issue is that I cant write AFIO_MAPR2 register. Is the issue because the register exists in XL-density devices only or some special action should be applied to g...

Timer triggered DMA SPI stream

Posted on July 20, 2014 at 22:55 Hi guys! Is there anyone that has some experience in setting up this kind of DMA streaming? I would like to stream 16-bit data to an external DAC, with no sweat for the processor. I've read that tim...

How to send several frames through CAN

Posted on December 02, 2014 at 22:47I tried to send several frames through CAN of STM32F103R4 but i could only send one frame. Somebody know How to sende several frames? #can #stm32f103r4 #can

STM32F072x usart rx interrupt receive what I send to printf

Posted on December 03, 2014 at 05:10Hi ST,I connect my module usart tx/rx with STM32F072x PA10/PA9, and initial PA10&PA9 as usart1 to communicate with my module.Besides, I use printf to IAR Terminal IO window to debug, not redirect printf to usart1 ...

dqdqdq31 by • Associate II
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How to properly unlock a STM32F4xx device...

Posted on December 02, 2014 at 19:30Hello ST gurus! May I inquire on the right sequence of steps to unlock a device (level 1 lock) to unlocked (level 0)? The STM library reveals the following sequence is required to lock: FLASH_OB_Unlock();         ...

STM32F429 MDIO

Posted on December 03, 2014 at 09:47Hi,we have to manage a CFP Module via MDIO with STM32F429. Unfortunately the module requires MDIO according to 802.3 clause 45. I am right that the 429er supports only the older version (clause 22)?Is there anothe...

volker by • Associate
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STM32F2 VCP Tx Handling USBD_BUSY

Posted on November 26, 2014 at 02:47I am using VCP firmware from STM, but I have a problem when I am transmitting my data using the CDC classI am sending data from my firmware to my PC, if I did open the serial port in my PC side, and i am still sen...

hosweetim by • Associate II
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STM32F030 Eval Board PORTF.0 Problem

Posted on December 03, 2014 at 05:33I am using an �030 with its internal oscillator.  Thus I should be able to use F0 and F1 for anything any GPIO pin can be used for.  I turned on internal pullups on these pins and only F1 worked.  F0 read high or ...

picguy2 by • Associate II
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