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stm32f4 gpio speed

Posted on June 23, 2013 at 23:15in datasheet the maximum speed of gpio is 84mhz it means ( 168mbit ) because 1hz=2bit

jbl_raw by • Associate II
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STM32F4 why I cant comunicate with USART1 ?

Posted on February 23, 2013 at 15:36 hello forum , please have a look at my STM32F4 code - the USART1 interrupt never gets called when a character arrives at the serial port I am sure about my PC side program becouse it is tested...

I2C3 configuration stm32F4Discovery

Posted on June 22, 2013 at 19:06 Hi everyone, I'm trying to configure I2C3 on the stm32f4 discovery board but i end up in the hard fault handler at I2C_Init. I am doing something weird i'm sure, any ideas? void I2C_Co...

kenny__84 by • Associate II
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pin mapping

Posted on June 23, 2013 at 14:16When I use the function ''GPIO_PinAFConfig'' in order to map pins to the device can I use any pins I want or I have to respect some roles ?

Problem in upgrading STM32F4discovery firmware using USB

Posted on June 21, 2013 at 09:36Hello everyone, I'm working on STM32F4discovery board. I used the example in the firmware and it worked. But when i wanted to upgrade firmware with my own codes, it didn't work. I even used the codes in the board firm...

ali by • Associate II
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STM L3GD20 Gyro and STM32F0 Interrupts

Posted on June 20, 2013 at 06:05I have an STM L3GD20 gyro which I am interfacing with an STM32F0. The gyro has two interrupt pins, and INT2 is specifically labeled ''DRDY.'' I'm under the impression that it can produce a pulse after each sample is c...

upgrdman by • Associate II
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STM32L152-EVAL USART baud rate is not correct except 9600

Posted on April 02, 2013 at 17:16I found it is not correct on STM32L152-EVAL USART baud rate. The clock configuration is set as below. I use printf to show some character such as ''hello world'' on the terminal. It only works with 9600. And the baud...

xinjin by • Associate II
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host usb vcp setup

Posted on June 21, 2013 at 04:54can someone tell me what the host needs to do to setup the USB VCP on the stm32f3? I would like to write my own linux vcp driver It appears that there are some specific things the host needs to do to get the STM32F3 i...

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