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STM32L1 OPAMP1 Gain Error

Posted on April 02, 2014 at 15:28 Hello All, I connected DAC1 output (S6 closed, S5 opened) to the internal OPAMP1 AIN+ which is in noninvering configuration by two external resistors (Rf=150k, Rg (to ground)=50k) which should yeld G=x4 ...

Tom by • Associate II
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  • 1 replies
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__IO, gcc and core_cm0.h

Posted on April 02, 2014 at 04:00Hello,I am porting the Custom HID demo project that is included with STM32_USB-FS-Device_Lib_V4.0.0 library to work with my gcc-based toolchain.  I have previously successfully ported other code (specifically, from O...

pgregson1 by • Associate III
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  • 7 replies
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arm_cfft_radix2_f32 in CMSIS DSP

Posted on April 02, 2014 at 10:48Hi, I am trying to use CMSIS DSP library functions to compute a FFT. I have a Discovery F407 board and I'm using STM32F4-Discovery_FW_V1.1.0 libraries/support. When I use function arm_cfft_radix4_f32() then everythi...

d_1 by • Associate II
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  • 2 replies
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TIM1 to control DMA peripheral-to-memory (8 ADCs)

Posted on April 02, 2014 at 01:50 Hello, Me again with basic questions. I am still trying to acquire from a bank of ADCs. 8 SAR ADCs in parallel on my stm32f429i-disco. From previous forum posts, and my own attempts, it appears I canno...

matteo by • Associate II
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  • 4 replies
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Word size of stm32l100

Posted on March 29, 2014 at 04:14What is the Default 'Word' size of stm32l100 #portable #tm32l100 #word-size #stdint.h

sundar by • Associate II
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  • 4 replies
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STM32L 151CB USB driver does not work on WIN 8

Posted on March 31, 2014 at 06:45Hi All.,STM32L151CB works as USB Mass storage device using USB driver from Keil '' http://www.keil.com/download/files/stm32_usbmem.zip    '' It works well on Win XP, but it fails on Win 8.Anyone can advice me.Thanks ...

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