A new release of zeST is available! On the menu: support for a new board, improved floppy management, and bug fix. New board support zeST now fully supports the TE0726 “ZynqBerry” board from Trenz Electronic. This is a Raspberry Pi 3-shaped board that features the same interfaces as the Pi, including 4 USB ports and an audio output jack connector. Porting zeST to this board was rather challenging because I had to deal with various issues that I never encountered on other boards before:

The TE0726 “ZynqBerry” board has a particular architecture that makes the initial setup process less straightforward than the other Zynq 7000-based boards that are supported by zeST. This board uses the clg225 package of the Zynq 7010 SoC, while the other boards use the clg400 version. This makes a smaller physical chip with less I/O pins to connect to the outside world. Among other reduced functionality, the clg225 chip only features two possible boot modes instead of four.

A new release of zeST is available! The following is a comprehensive description of the changes. More demos working A number of fixes have been made, improving compatibility with some demos that didn’t load into zeST initially. They mainly improve the loading of floppy disk images on some demos that use their own low-level code to address the Atari ST’s floppy disk controller and DMA system. As you can see from the dedicated GitHub issue page, all demos I had previously identified as not able to load are now working.