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Re: Latest TF534 is here
Posted: 16 Apr 2019 22:55
by chue
theq wrote: 11 Mar 2019 16:50
Here is my TF534 BOM from Digikey. Since I'm totally fresh to this, and not been able to watch all of TerribleFire's YouTube videos, I'm not 100% sure which oscillator to pick. Therefore there are 3 to choose from in this BOM. Pick the one you need. :)
If you do see anything that could have been chosen differently, please tell. There more we share the better. :ugeek:
There's a correction that needs to be done for this BOM. For "Index 4", the caps in the BOM are too small (0201). They should be 0603. Here's the Digikey part that I am going to order:
399-15351-1-ND
I have enough trouble soldering 1206 sized caps, much less 0201s. When I saw them I knew there was a mistake :)
Re: Latest TF534 is here
Posted: 17 Apr 2019 11:26
by theq
Yeah, good find. I discovered this too. Was a noob metric/retard unit mistake. :roll:
0603 metric is 0201 imperial. And this was supposed to be 0603 imperial...
Sorry about this. :)
Re: Latest TF534 is here
Posted: 19 Apr 2019 22:41
by chue
Has anyone soldered on the SPI flash chip yet?
I tried the one from theq's BOM and it seems a bit wide. I also searched Digikey using the part number from GitHub "SST26VF016B" and all I get are 16 MB parts, not 32 MB as per the parts list.
So at this point, I'm not really sure what the right part is.
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Re: Latest TF534 is here
Posted: 19 Apr 2019 23:24
by 8 Bit Dreams
this BOM is screwed up. Flash chip You need is SST26VF016B
just like mentioned in BOM on Github
https://github.com/terriblefire/tf534
DigiKey Nr: SST26VF016B-104I/SN-ND
Re: Latest TF534 is here
Posted: 20 Apr 2019 17:05
by chue
Thanks, I will order that next time I need something from Digikey. The BOM was quite useful, just a couple of mistakes on there.
Attached is an updated BOM, which has fixes for the 0.1 uF caps and the SPI Flash
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Re: Latest TF534 is here
Posted: 20 Apr 2019 19:27
by theq
chue wrote: 20 Apr 2019 17:05
Thanks, I will order that next time I need something from Digikey. The BOM was quite useful, just a couple of mistakes on there.
Attached is an updated BOM, which has fixes for the 0.1 uF caps and the SPI Flash
Great job for sharing the love! <3 :)
And yeah, the SPI was wrong. Shouldn't have added it in the first place since it wasn't supported at the time. But to be fair the original BOM mentioned a 32MB SPI Flash. It got updated/changed just after I posted my "screwed up" BOM. :P