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I wrote a program to use I2C with stm32f407vgt on my board but it doesn't work. I checked the clock(scl) and it was OK , then i tested the same program on stm32f429 discovery board without changing any settings and it worked. any idea about what should i do ?

my micro is stm32f407 and i use internal clock source.

Thanks hamid

hamid
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  • I am trying to understand your question. I read another question and understood that one. What is wrong? – leppie Jan 28 '15 at 11:45
  • my code works on another micro but in my board doesn't work .micro and sensor connection directly but it doesn't work and my micro is new – hamid Jan 28 '15 at 12:00
  • Just a guess, but maybe there are pullup already on 1 board and not on the other? Do you have a scope/logic analyzer to compare? – leppie Jan 28 '15 at 12:07
  • Which f407 board? Have you verified that the pins you're using on that board are actually free for your use? – Andy Brown Jan 29 '15 at 10:03
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    Did you solved this issue, Or is this still open? – Sorcrer Apr 03 '15 at 10:46

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