Minimum hardware requirements

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Posted on February 11, 2007 at 21:25

Minimum hardware requirements

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Posted on May 17, 2011 at 09:36

Do all the Vdd, Vss, Vccq, Vssq pins and Vbat have to be connected to get the STR91x running? Currently only one Vdd, Vss, Vccq, and Vssq pin is connected and it isn't running anything. Only JTAG works.

[jas]

Posted on May 17, 2011 at 09:36

Hi,

Have you seen: AN2339 STR91x hardware development getting started http://www.st.com/stonline/products/literature/anp/12233.pdf The schemtic shows ALL power pins connected to their relevant source. Good luck.

[broadcast]

Posted on May 17, 2011 at 09:36

Now they're all connected and it still doesn't work. Suspected the extra pins were for routing convenience because they're all shorted.

[jas]

Posted on May 17, 2011 at 09:36

H, hope you got a replacement device or maybe your ST distributor can supply a few samples.

By the way, what is the silicon revivon number on your device(s), ''D'' or >> 608 ? I'd like to know what ST are shipping at the moment.

[broadcast]

Posted on May 17, 2011 at 09:36

Date code 620. It seems unlikely to be a defective device. The problem seems to lie with the compiler. Replacing the part would be difficult and have no more chance of success than installing the original part. The most economical solution is just to move on to a Gumstix.

If there was a binary image, known to work, that turned on a GPIO, it would undeniably prove the compiler or the part was broken, but no such binary exists.