Sign in
Search fpga-cpu
Subscribe to fpga-cpu
fpga-cpu by Keywords
Altera | CISCifying | IDE | ISA | Java | JHDL | JTAG | LBU | MicroBlaze | PAR | PCI | RISC | SoC | Spartan | Transputers | Verilog | VHDL | Virtex | VLIW | WebPack | Xilinx | Xsoc | YARD-1A
Ads
Discussion Groups
See Also
Discussion Groups | FPGA-CPU | Flattened BGA's ?
This list is for discussion of the design and implementation of field-programmable gate array based processors and integrated systems. It is also for discussion and community support of the XSOC Project (see http://www.fpgacpu.org/xsoc).
Flattened BGA's ? - David Gregory - Nov 12 12:54:59 2008
Is it normal when purchasing Programmable Logic Devices (Xilinx /
Altera) that are brand new, 08+ date codes, and factory sealed, for them
to arrive with some slightly flattened BGA's and dinged discolored
edges? These can be barely seen with the naked eye but definitely under
our superscope. If it is normal what is the cause? Any help out there is
appreciated.
Thanks,
Dave
________________________________
From: f...@yahoogroups.com [mailto:f...@yahoogroups.com] On
Behalf Of rtstofer
Sent: Monday, August 11, 2008 12:43 PM
To: f...@yahoogroups.com
Subject: [fpga-cpu] Re: Big CPUs in Small FPGAs
--- In f...@yahoogroups.com ,
"e2kcpu" wrote:
> > I'm going to re-synthesize my old project for the new chip and see
how
> > it comes out. It should fit easily!
>
> PDP or the cpm system ?
IBM 1130 - the first computer I ever programmed, circa 1969.
>
> BTW, I'm thinking of making EXP-SRAM board. 64 bit wide, and also some
> C and SD-flash connectors.
If I can find the Samtec connectors, I think I will build a 'bridge'
board for SRAM and a Compact Flash socket. There are plenty of user IO
lines (168) so a 32k x 64 bit SRAM memory can be built pretty easy.
Richard
[Non-text portions of this message have been removed]
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
Altera) that are brand new, 08+ date codes, and factory sealed, for them
to arrive with some slightly flattened BGA's and dinged discolored
edges? These can be barely seen with the naked eye but definitely under
our superscope. If it is normal what is the cause? Any help out there is
appreciated.
Thanks,
Dave
________________________________
From: f...@yahoogroups.com [mailto:f...@yahoogroups.com] On
Behalf Of rtstofer
Sent: Monday, August 11, 2008 12:43 PM
To: f...@yahoogroups.com
Subject: [fpga-cpu] Re: Big CPUs in Small FPGAs
--- In f...@yahoogroups.com
"e2kcpu"
> > I'm going to re-synthesize my old project for the new chip and see
how
> > it comes out. It should fit easily!
>
> PDP or the cpm system ?
IBM 1130 - the first computer I ever programmed, circa 1969.
>
> BTW, I'm thinking of making EXP-SRAM board. 64 bit wide, and also some
> C and SD-flash connectors.
If I can find the Samtec connectors, I think I will build a 'bridge'
board for SRAM and a Compact Flash socket. There are plenty of user IO
lines (168) so a 32k x 64 bit SRAM memory can be built pretty easy.
Richard
[Non-text portions of this message have been removed]
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
Re: Flattened BGA's ? - leon Heller - Nov 12 13:07:43 2008
----- Original Message -----
From: "David Gregory"
To:
Sent: Wednesday, November 12, 2008 3:25 PM
Subject: [fpga-cpu] Flattened BGA's ?
> Is it normal when purchasing Programmable Logic Devices (Xilinx /
> Altera) that are brand new, 08+ date codes, and factory sealed, for them
> to arrive with some slightly flattened BGA's and dinged discolored
> edges? These can be barely seen with the naked eye but definitely under
> our superscope. If it is normal what is the cause? Any help out there is
> appreciated.
They might have been removed from failed boards and reballed. Have you
contacted the manufacturer?
Leon
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
From: "David Gregory"
To:
Sent: Wednesday, November 12, 2008 3:25 PM
Subject: [fpga-cpu] Flattened BGA's ?
> Is it normal when purchasing Programmable Logic Devices (Xilinx /
> Altera) that are brand new, 08+ date codes, and factory sealed, for them
> to arrive with some slightly flattened BGA's and dinged discolored
> edges? These can be barely seen with the naked eye but definitely under
> our superscope. If it is normal what is the cause? Any help out there is
> appreciated.
They might have been removed from failed boards and reballed. Have you
contacted the manufacturer?
Leon
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
RE: Flattened BGA's ? - David Gregory - Nov 12 13:23:42 2008
Not yet, it just seems as though every time there are discrepancies when
we receive product if you look hard enough?
________________________________
From: f...@yahoogroups.com [mailto:f...@yahoogroups.com] On
Behalf Of leon Heller
Sent: Wednesday, November 12, 2008 1:08 PM
To: f...@yahoogroups.com
Subject: Re: [fpga-cpu] Flattened BGA's ?
----- Original Message -----
From: "David Gregory" >
To: >
Sent: Wednesday, November 12, 2008 3:25 PM
Subject: [fpga-cpu] Flattened BGA's ?
> Is it normal when purchasing Programmable Logic Devices (Xilinx /
> Altera) that are brand new, 08+ date codes, and factory sealed, for
them
> to arrive with some slightly flattened BGA's and dinged discolored
> edges? These can be barely seen with the naked eye but definitely
under
> our superscope. If it is normal what is the cause? Any help out there
is
> appreciated.
They might have been removed from failed boards and reballed. Have you
contacted the manufacturer?
Leon
[Non-text portions of this message have been removed]
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
we receive product if you look hard enough?
________________________________
From: f...@yahoogroups.com [mailto:f...@yahoogroups.com] On
Behalf Of leon Heller
Sent: Wednesday, November 12, 2008 1:08 PM
To: f...@yahoogroups.com
Subject: Re: [fpga-cpu] Flattened BGA's ?
----- Original Message -----
From: "David Gregory"
To:
Sent: Wednesday, November 12, 2008 3:25 PM
Subject: [fpga-cpu] Flattened BGA's ?
> Is it normal when purchasing Programmable Logic Devices (Xilinx /
> Altera) that are brand new, 08+ date codes, and factory sealed, for
them
> to arrive with some slightly flattened BGA's and dinged discolored
> edges? These can be barely seen with the naked eye but definitely
under
> our superscope. If it is normal what is the cause? Any help out there
is
> appreciated.
They might have been removed from failed boards and reballed. Have you
contacted the manufacturer?
Leon
[Non-text portions of this message have been removed]
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
Re: Flattened BGA's ? - e2kcpu - Nov 12 19:24:40 2008
--- In f...@yahoogroups.com, "David Gregory" wrote:
>
> Is it normal when purchasing Programmable Logic Devices (Xilinx /
> Altera) that are brand new, 08+ date codes, and factory sealed, for them
> to arrive with some slightly flattened BGA's and dinged discolored
> edges? These can be barely seen with the naked eye but definitely under
> our superscope. If it is normal what is the cause? Any help out there is
> appreciated.
What are you actually asking ?
You got both, ALTERA and XILINX parts which look used ?
>From any of the major distributors ?
Cheers
P.S. Of this is really true, take pictures and send them to tech/sales
support ...
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )
>
> Is it normal when purchasing Programmable Logic Devices (Xilinx /
> Altera) that are brand new, 08+ date codes, and factory sealed, for them
> to arrive with some slightly flattened BGA's and dinged discolored
> edges? These can be barely seen with the naked eye but definitely under
> our superscope. If it is normal what is the cause? Any help out there is
> appreciated.
What are you actually asking ?
You got both, ALTERA and XILINX parts which look used ?
>From any of the major distributors ?
Cheers
P.S. Of this is really true, take pictures and send them to tech/sales
support ...
------------------------------------
To post a message, send it to: f...@yahoogroups.com
To unsubscribe, send a blank message to: f...@yahoogroups.com
(You need to be a member of fpga-cpu -- send a blank email to fpga-cpu-subscribe@yahoogroups.com )