Disable the options 'Pin Detect' and 'Check ID' from the lower left corner.

not important right now we only need to support one type of chip the 'AM27C512 Don't confused the 'AM27 C512 for the 'AM27512' - one has a 'C' and one does not. The TL866II+ totes support for over 15000 chips! Amazing! But. When you open the programmer software in Windows ensure you see the message '1 Programmer Connected'. Screenshots in this section will illustrate the software for the TL866II+ but it is very comparable for other models.įor whatever reason your system may not play nice with drivers and software. Once you have the software you need for your TL866II+ (or TL866 / TL866II) and you have confirmed your programmer is detected then you can proceed with reading or 'ripping' ROM images from both of your ROM chips, which is covered in this step. If you purchased the TL866II+ manufactured by the company available from Amazon and linked to in the supplies section then you can download the software you need from here on the Autoelectric website. When we create the copy of the ROM chip memory using the TL866II+ programmer it is called 'ripping'.īegin by downloading the appropriate Windows software for your TL866II+. You can consider the process like a photocopy. When the term 'image' is used you can metaphorically imagine a 'snapshot' of the entire ROM chip memory. I also host ROMs which I pulled from my own chips in GitHub, which you can find linked in the next section. If you don't have working ROM chips or would prefer to download a copy, you can find many popular ROMs listed on the ' Macintosh Repository' website - a great resource for the community ( Direct Download link). You will need an image of an existing working ROM in order to produce new replacement chips. Ripping ROM is the process of reading all of the ROM chip memory to your computer. The memory in the ROM chips is programmed to issue important instructions like loading the operating system from the hard drive and much, much more. On the technical side, ROM is 'Read Only Memory' - two physical computer chips installed on your Macintosh Plus logic board which issue commands to the CPU. If the metal pins are damage your ROM chip may become an interesting piece of trash. It should be noted that this guide will not cover how to physically uninstall or install your ROM chips but please understand removal and installation of ROM chips should be a delicate process. However, it is possible on Linux and Mac OS with more effort.

For simplicity sake I will describe the process of ripping ROM images on Windows, as it is the most straight forward process with the TL866II+. Let's talk about 'ripping' ROM images from physical chips.

Rom image file mac emulator