minimigtg68 : Message: Re: DE2 & V13

minimigtg68 · Minimig with fpgacpu tg68

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Message #168 of 321 |

Re: DE2 & V13

http://whoyouvotefor.info/altera_sdram.html
here is info about sdram controller for new chip
i havnt time too look by myself but maybe usefull for someone.
regards.

Sat Oct 25, 2008 9:38 am

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"sergio_stunt" <sergio_stunt@...>

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Message #168 of 321 |

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Hi all, Been having some problems with v13 and thought I'd see if anyone else has had the same experience as me!?! 1st of all, I've downloaded the new v13...	Mark McDougall tcdevelop	Sep 24, 2008 6:52 am
Dear Mark Now, i now for sure that the problem is in the SDRAM memory that cames with the news DE1 and DE2 boards. In the old boards they mounted the IS42S8800...	Javier Ruiz soyandroid	Sep 24, 2008 7:12 am
... Yup, that's the problem alright! I've added constraints to the SDRAM pins and now I can boot Hybris on the DE2 without any problems at all! Let me know if...	Mark McDougall tcdevelop	Sep 24, 2008 7:43 am
... Seems I spoke too soon! :( Although I certainly booted Hybris 1st time, subsequent boots haven't been so successful. In any case, it looks like the SDRAM...	Mark McDougall tcdevelop	Sep 24, 2008 7:51 am
Hi Mark Please remove the rem markers in line 168 and 171 from the File \Board\TG68.vhd correct Code: line 168: IF wr='1' THEN line 169: uds_s <= uds_in; ...	TobiFlex tobiflexx	Sep 24, 2008 8:08 am
... Still no good Tobias. It finds the SD card and loads SPIHOST but hangs on the grey screen. I think you'll find that you need timing constraints and...	Mark McDougall tcdevelop	Sep 24, 2008 9:11 am
... Interesting. I've just run the pre-compiled v13 build on my DE1 with the PSC SDRAM chip and it appears to run fine without crashing. I guess it's luck of...	Mark McDougall tcdevelop	Sep 25, 2008 11:27 pm
I am somewhat confused by this. According to the datasheet, the IS42S8800 is organized as 2Mx8x4, whereas the PSC chip is 1Mx16x4.. ... cames with the news DE1...	mrmartian1271	Oct 28, 2008 12:47 am
http://whoyouvotefor.info/altera_sdram.html here is info about sdram controller for new chip i havnt time too look by myself but maybe usefull for someone. ...	sergio_stunt	Oct 25, 2008 10:03 am

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