STM32 MCUs Products

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Forum Posts

FMC SRAM High Speed problem

Posted on March 06, 2015 at 20:29I'm using Keil on an stm32f4xx with 10ns read/write sramI have configured the FMC with a data ready of 2 HCLK (my speed is 180 Mhz) so that is 90 Mhz, which is slower than the rating of 100 Mhz of the SRAM, however t...

Logarithm and exponential function

Posted on March 09, 2015 at 10:02Hello, I am using STM32F3 Discovery kit. I need to calculate logarithms and exponential function (e^x). I cant find these functions anywhere. Are they in any libraries from ST? Thank you for answers

j3lda by Associate II
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STemWin V5.26 not displaying extended characters?

Posted on February 02, 2015 at 18:52 I'd like to display the characters on the ''GUI_Font20_1'' font above I have modified the ''Hello World example (STM32Cube_FW_F4_V1.4.0\Projects\STM32F429I-Discovery\Applications\STemWin\STemWin_HelloWorld) ...

hbarta2 by Associate III
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Ethernet cable connection

Posted on December 05, 2013 at 14:45Dear all, I'm trying to work with ethernet communication and I started with '' AN3376: STM32F2x7 In-Application Programming (IAP) over Ethernet ''. Example works properly but boards must be connected to the ethern...

momede by Associate II
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SPI with mixed DMA / manual XFER and TXFIFO issue

Posted on February 15, 2015 at 21:59I am using SPI in slave mode with a mix of manual transmission/reception at the beginning of my message protocol (first 3 bytes manual), then DMA in the middle for the data transfer, then manual ACK/NAK byte respo...

gahelton1 by Associate III
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STM32F303 clock startup

Posted on March 06, 2015 at 15:15With a clock module connected to the OSCin (HSE) does the chip start up using that or does the internal osc start the MCU and a s/w setup change over to the external clock? Otherwise how does it know what frequency i...

gbigden by Associate III
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