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Forum Posts

I2C problems

Posted on March 26, 2014 at 16:10HiI'm trying to write and read some data into a EEPROM (AT24MAC402) with my STM32F417 in I2C but the program loops in the START and don't write or read in the EEPROM. There is a status in ''stm32f4xx_i2c.c'' that sta...

tiche79 by Associate II
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  • 10 replies
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Hard Fault Writing Flash

Posted on March 28, 2014 at 16:11Hi, i'm trying to create a bootloader into the component STM32f106RDT with 384KO of Flash. I have mapped the memory like this: 0x08000000 - 0x0802FFFF for main software (first binary) 0x08030000 - 0x08030FFF for boot...

tommelou by Associate II
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  • 5 replies
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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
  • 943 Views
  • 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
  • 0 kudos