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Forum Posts

Writing to UART_DR register clears the RXNE bit?

Posted on November 09, 2011 at 16:38FIXED!!!!I was using a Union Structure, which required a read to the register..I have STM32F207 chip...Using UART2, I've tried to do bidirectional data sending and receiving.  However, I've noticed that when I wri...

Price & Availability?

Posted on September 21, 2011 at 19:10http://www.st.com/internet/evalboard/product/252419.jsp Looking to be about $16-$19 USD depending on distributor.http://www.st.com/internet/mcu/subclass/1521.jsphttp://www.st.com/internet/com/TECHNICAL_RESOURCES/...

CMSIS DSP Library - spurious output from arm_conv_f32

Posted on November 09, 2011 at 10:06Originally Posted 12 October 2011 to OnARM forum (which seems to be dead). Using arm_conv_f32 with a 7 element array and a 58 element array I get convolution results I expect. 0.0625, 0.125, 0.1875, 0.25, 0.1875, ...

John F. by Senior
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STM32F4: 64 kB SRAM inaccessible to all peripherals?

Posted on November 03, 2011 at 03:37We've been looking at the new STM32F4x because we could really use some additional internal memory, and the F4x family advertises up to 192 kB. Sounds great. So today I attended our local STM32F4x roadshow present...

Mac os x driver for stm32 series

Posted on November 04, 2011 at 16:07I am sorry I am new here and did not found the related info in this forum.So I wonder if ST plans to release mac os x drivers for STM32.If a thread is currently treating this subject I would be grateful if someone...

Accelerometer

Posted on November 07, 2011 at 11:41Hello, We are working with the STM32F4-Discovery and are testing the accelerometer. The demo program works fine and we see the LED values blink when we tilt the board (in an angular fashion). In that case, 2 LEDs ...

girish by Associate II
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VDD_FT

Posted on November 07, 2011 at 14:16I'm interested to know about the input protection doides on five volt tolerent IO. In various places the documentation shows the clasic diode from the IO to ''VDD_FT'' and states ''VDD_FT is a potential specific t...

trevor23 by Associate III
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Toggle mode confusion

Posted on November 06, 2011 at 13:25my IDE software shows following clock summary for my code: HSECLK :8 Mhz SYSCLK :72 Mhz HCLK   :72 Mhz PCLK1  :18 Mhz PCLK2   :72 Mhz I have following codes (only necessary lines are mentioned): __IO uint16_t CCR1...

STM32L152 and short delay [Solved]

Posted on November 01, 2011 at 12:36Dear forum users, I use the STM32L152 with a RTOS.I need to wake up a task after a short delay (shorter than the time slot). I think I will utilize a timer interrupt to release the mutex token in the delay routine...

thoma by Associate II
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