1.5.1 Fix Linux serial enumeration

v1.5.1

Bump version numbers

Hardware revision 1.5

This new revision of the hardware adds level shifters to the address lines, fully protecting the RP2040 from 5V signals. It also adds an external reset pin to the board which can be hooked up to a reset line on the target hardware allowing it to be reset after the ROM image has been changed. The picorom tools reset command controls the reset line.

There are now two versions of the firmware. PicoROM.uf2 is intended for the new 1.5 hardware revision. PicoROM-1.2.uf2 for the older 1.2 hardware revision. Both versions will work with both hardware revisions, however the reset pins and LEDs will not function correctly.

Guaranteed 100ns access time

This release increases the system clock to 200Mhz from it's previous value of 166Mhz. This guarantees an access time of 100ns (92ns maximum measured).

1.0 release

Add usb activity to LED

Bump everything up to version 1.0.0

v0.9.1

Added read_exact to python modules.
x64 and armv7 linux targets

Version 0.9

First packaged release. Includes compiled firmware, python modules and picorom command line tool.