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DCMI on STM32F4-Discovery board

swenson
Associate

‎2012-01-08 01:49 PM

Posted on January 08, 2012 at 22:49

Can DCMI be used on the STM32F4Discovery board? It appears that there are pin conflicts that make it impossible.

PA4 - DCMI_HSYNC conflicts with CS43L22 - LRCK/AN1x

PA6 - DCMI_PIXCLK conflicts with LIS302DL - SDO

PB6 - DCMI_D5 conflicts with CS43L22 - SCL

PC7 - DCMI_D1 conflicts with CS43L22 - MCLK

The STM3240G-EVAL board appears to use the H and I pins to avoid these conflicts.

For reference, I am looking at Table 5 of DM00039084.pdf (User Manual for STM32F4DISCOVERY) and Figure 20 of DM00036746.pdf (for the STM3240G-EVAL board). 

Any comments or suggestions? Thanks.
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Tesla DeLorean
Guru

‎2012-01-08 04:00 PM

Posted on January 09, 2012 at 01:00

Can DCMI be used on the STM32F4Discovery board? It appears that there are pin conflicts that make it impossible.Any comments or suggestions? Thanks.

 

 

Impossible seems to overstate the problem, it is a $15-20 USD board, remove the conflicting external hardware and experiment. It is classed as a ''throw away'' board with which to ''get creative'', if you need a more feature rich board it is likely an order of magnitude more expensive.

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