Yep, all ones is the default state before programming. I've got a stack of
these somewhere with just that pattern. Maybe you'd like to buy a virtual
"copy"???
In article <nvqiu1h5j2i4kjjagqcl0atorqfqi8ql0f@xxxxxxx>, none@xxxxxxxx
says...
I have a M27C512 chip that I need to copy, however, it seems as though
there is a copy protection on the chip. Is there an IC programmer
that lets you make a 1 to 1 copy of a protect IC chip.
Every time I try to do a read from the chip, all it reads is FF FF FF.
Does anyone know how to get around this.
Thanks
As the other poster said, there is no copy protection on a 27512 (any
variant) and the data being FF just means that the IC is currently
blank.
Re: Structured Programming using Forth ... don't attempt to automate optimization at all. ... In your last reply to me, you disagreed with my statement that programming a SEAforth processor was going to be much more like assembly language programming than it would be Forth programming. ... Intellasys might take an different view-- that market acceptance of the SEAforth chip will require that they make it as easy as possible for engineers to use their chips. ... (comp.lang.forth)
Re: Hardware Guru for Hire? ... PCs have only used the 512 byte sector size. ... The USB-to-FDC chip is a whole microprocessor PLUS an FDC chip WITH A FIRMWARE OPERATING SYSTEM. ... Also, in the context of my response that certain things might not be "programmable", I was defining "programmable" as "programmable from the PC via the USB connection", and I was referring to the "stock" version of the chip, not a version with custom external firmware. ... Things like what sector size and how many just minor programming thats... (comp.os.cpm)
Re: Any recommendations for a good overview of pic and basic stamps ... >>loaded onto the chip via a cable linking the chip and a PC. ... > Another poster has covered most of the 'Basics'.... However the Stamp module, would not even be ... > comprising a carrier board, programming cable, one stamp, manual etc., ... (sci.electronics.misc)
Re: Any recommendations for a good overview of pic and basic stamps ... >>loaded onto the chip via a cable linking the chip and a PC. ... > Another poster has covered most of the 'Basics'.... However the Stamp module, would not even be ... > comprising a carrier board, programming cable, one stamp, manual etc., ... (sci.electronics.repair)
Re: Any recommendations for a good overview of pic and basic stamps ... >>loaded onto the chip via a cable linking the chip and a PC. ... > Another poster has covered most of the 'Basics'.... However the Stamp module, would not even be ... > comprising a carrier board, programming cable, one stamp, manual etc., ... (sci.electronics.equipment)
