Comments for XCORES.ORG http://xcores.org/blog Open-Source Cores For XMOS MultiCore Processors Fri, 06 Nov 2009 18:04:48 +0000 http://wordpress.org/?v=2.8.6 hourly 1 Comment on VDP1 Preliminary Release by Administrator http://xcores.org/blog/2009/09/02/vdp1-preliminary-release/comment-page-1/#comment-24 Administrator Fri, 06 Nov 2009 18:04:48 +0000 http://xcores.org/blog/?p=34#comment-24 Hi Simon, No need to remove the crystal. All ports are clocked at 100mhz ( 20mhz PLL -> 400mhz ), which means that you have enough of a resolution to clock everything at 25mhz, slightly below the 'standard' VGA frequency. For NTSC you'll need an external 28.63636mhz oscillator thought... Hi Simon,

No need to remove the crystal. All ports are clocked at 100mhz ( 20mhz PLL -> 400mhz ), which means that you have enough of a resolution to clock everything at 25mhz, slightly below the ’standard’ VGA frequency. For NTSC you’ll need an external 28.63636mhz oscillator thought…

]]> Comment on VDP1 Preliminary Release by Simon http://xcores.org/blog/2009/09/02/vdp1-preliminary-release/comment-page-1/#comment-23 Simon Wed, 04 Nov 2009 20:25:47 +0000 http://xcores.org/blog/?p=34#comment-23 Did you have to remove the 20 MHz crystal on the development board and replace witha 25.175 MHz crystal in order to get the necessary VGA pixel timings or is there some other clever way of doing it without touching the development board? Thanks Did you have to remove the 20 MHz crystal on the development board and replace witha 25.175 MHz crystal in order to get the necessary VGA pixel timings or is there some other clever way of doing it without touching the development board?

Thanks

]]> Comment on VDP-NTSC by TonyD http://xcores.org/blog/2009/09/27/vdp-ntsc/comment-page-1/#comment-20 TonyD Mon, 28 Sep 2009 08:01:23 +0000 http://xcores.org/blog/?p=87#comment-20 Thanks for the great work. I'll try and order some 28.6363Mhz crystals this week and give it a try out, but my normal component supplier doesn't stock that value so I'll have to try a different supplier. I'm pretty sure my new-ish PAL TV will accept NTSC. I've been waiting for parts for the last two weeks for my hardware implementation of the VDP-VGA and I'm still waiting :( Thanks for the great work.

I’ll try and order some 28.6363Mhz crystals this week and give it a try out, but my normal component supplier doesn’t stock that value so I’ll have to try a different supplier. I’m pretty sure my new-ish PAL TV will accept NTSC.

I’ve been waiting for parts for the last two weeks for my hardware implementation of the VDP-VGA and I’m still waiting :(

]]> Comment on Mario Redux by TonyD http://xcores.org/blog/2009/09/21/mario-redux/comment-page-1/#comment-19 TonyD Thu, 24 Sep 2009 11:31:53 +0000 http://xcores.org/blog/?p=81#comment-19 Have you seen the XShell / XGS project on xlinkers? XShell / XGS Specification * Processor: Xmos XS1-L1-128, Single Core, 400 MIPS * Memory: SDRAM - 256Mbit, 32M x 8; Serial FLASH - 4Mbit, 512K x 8 * Display: VGA 640x480 with 256 colours; Text Only * Storage: SD Card using FAT16 * Interfaces: PS2 for keyboard/mouse, Joystick, 1-bit speaker/audio * Software: Shell, Text Editor, Simple Language Interpreter A lot of synergy here for the idea of a single chip game system Have you seen the XShell / XGS project on xlinkers?

XShell / XGS Specification

* Processor: Xmos XS1-L1-128, Single Core, 400 MIPS
* Memory: SDRAM – 256Mbit, 32M x 8; Serial FLASH – 4Mbit, 512K x 8
* Display: VGA 640×480 with 256 colours; Text Only
* Storage: SD Card using FAT16
* Interfaces: PS2 for keyboard/mouse, Joystick, 1-bit speaker/audio
* Software: Shell, Text Editor, Simple Language Interpreter

A lot of synergy here for the idea of a single chip game system

]]> Comment on Timing is everything.. by Administrator http://xcores.org/blog/2009/09/12/timing-is-everything/comment-page-1/#comment-14 Administrator Mon, 14 Sep 2009 16:26:55 +0000 http://xcores.org/blog/?p=64#comment-14 Yup. Saw it on xlinkers! Looks like a nice board.. :-) Yup. Saw it on xlinkers! Looks like a nice board.. :-)

]]> Comment on Timing is everything.. by TonyD http://xcores.org/blog/2009/09/12/timing-is-everything/comment-page-1/#comment-13 TonyD Mon, 14 Sep 2009 09:13:52 +0000 http://xcores.org/blog/?p=64#comment-13 Thats great news on getting a prototype NTSC driver working especially without a external video encoder chip. Speaking of XS1-L, have you see the new Xmos XK-1 eval board? <a href="http://letsmakerobots.com/node/10538" rel="nofollow">Letsmakerobots.com</a> has the story. Its not on the Xmos website yet but I hope it gets listed soon. Thats great news on getting a prototype NTSC driver working especially without a external video encoder chip.

Speaking of XS1-L, have you see the new Xmos XK-1 eval board?
Letsmakerobots.com has the story.

Its not on the Xmos website yet but I hope it gets listed soon.

]]> Comment on PCB’s ordered.. by TonyD http://xcores.org/blog/2009/09/05/pcbs-ordered/comment-page-1/#comment-11 TonyD Thu, 10 Sep 2009 13:36:39 +0000 http://xcores.org/blog/?p=48#comment-11 Who did you use for your PCB's? Who did you use for your PCB’s?

]]> Comment on PCB’s ordered.. by Administrator http://xcores.org/blog/2009/09/05/pcbs-ordered/comment-page-1/#comment-10 Administrator Tue, 08 Sep 2009 16:44:57 +0000 http://xcores.org/blog/?p=48#comment-10 Your order XXXX-XXXX is confirmed Sep 8, 2009 11:11 and schedule to deliver on Sep 18, 2009. We will send you delivery details as delivered. Please let us know if had any questions, thank you. 8-day shipping my ass... Your order XXXX-XXXX is confirmed Sep 8, 2009 11:11 and schedule to deliver on Sep 18, 2009.
We will send you delivery details as delivered. Please let us know if had any questions, thank you.

8-day shipping my ass…

]]> Comment on VDP1 Preliminary Release by Administrator http://xcores.org/blog/2009/09/02/vdp1-preliminary-release/comment-page-1/#comment-9 Administrator Mon, 07 Sep 2009 17:15:58 +0000 http://xcores.org/blog/?p=34#comment-9 ProMotion actually outputs a '.spr' file format which is as close as you can get to getting raw byte-per-pixel data out. The file format is described in the help file. My converter is a bit of a mess at the moment as it also converts animations into a custom format ( for GBA / DS ). I'll add it to my list of things to do :-) Tume is awesome but I wish there was a windows version... ProMotion actually outputs a ‘.spr’ file format which is as close as you can get to getting raw byte-per-pixel data out. The file format is described in the help file. My converter is a bit of a mess at the moment as it also converts animations into a custom format ( for GBA / DS ). I’ll add it to my list of things to do :-)

Tume is awesome but I wish there was a windows version…

]]> Comment on PCB’s ordered.. by Administrator http://xcores.org/blog/2009/09/05/pcbs-ordered/comment-page-1/#comment-8 Administrator Mon, 07 Sep 2009 17:12:38 +0000 http://xcores.org/blog/?p=48#comment-8 Yup, they're 0805 SMT resistors. Yup, they’re 0805 SMT resistors.

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