These are evalution boards for the online-programmable MTP (as opposed to the OTP parts, which can only be programmed offline and once) Padauk µC.

To make physical boards: load the .lht file of the board into pcb-rnd, export from there whatever is needed for your pcb manfacturer.

They are free; you can redistribute them and/or modify them under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Currently there are these board designs:

* f-eval-pdk-s08:  For the PFC232, PFC460, PFS122, PFS132, PFS172 and PFS252 and in 8-pin SOIC package.
* f-eval-pdk-s08a: For the PFC151, PFC154, PFC161, PFS123, PFS154 and PFS173 in 8-pin SOIC package.
* f-eval-pdk-s08b: For the PFC161 in 8-pin SOIC package.
* f-eval-pdk-s16:  For the PFC154, PFS154 and PFS173 in 16-pin SOIC package.
* f-eval-pdk-s16a: For the PFC232, PFC460, PFS122, PFS132, PFS172 and PFS252 in 16-pin SOIC package.

The board designs (pfs154-so16 and pfs232-so16) feature:

* Micro-USB connector for optional power supply from USB and an LED to indicate USB power.
* Pin headers allowing easy access to all pins on the package.
* Extra pin header for the pins relevant to online programming.
* 4 LED at I/O pins.
* Hand-solderable component packages.

Some simple demo programs for the boards can be found at: https://github.com/free-pdk/sdcc-pdk-code-examples

Device support table

Device vs. Board    f-eval-pdk-s08   f-eval-pdk-s08a   f-eval-pdk-s08b   f-eval-pdk-s16   f-eval-pdk-s16a

PFC151                               y(S08A)
PFC154                               y(S08)                              y(S16)
PFC161                               y(S08A)           y(S08B)
PFC232               y(S08)                                                               y(S16)
PFC460               y(S08)                                                               y(S16)
PFS122               y(S08)                                                               y(S16A)
PFS123                               y(S08)
PFS132               y(S08)                                                               y(S16)
PFS154                               Y(S08)                              Y(S16)
PFS172               Y(S08)                                                               y(S16A)
PFS173                               Y(S08)                              Y(S16)
PFS252               y(S08)                                                               y(S16)
PGS134               y(S08)                                                               y(S16A)
PGS152               y(S08)

y: Should work (untested).
Y: Works (tested).

Tools used:

* gschem for the schematic (symbols used to be found in pdk-gschem-symbols repository)
* pcb-rnd for the pcb design

Components (f-eval-pdk-s08, f-eval-pdk-s08a and f-eval-pdk-s08b):

* 1 Padauk PFC151, PFC154, PFC161, PFC232, PFC460, PFS122, PFS123, PFS132, PFS154, PFS172, PFS173, PFS252, PGS134 or PGS152 microcontroller in 8-pin SOIC package.
* 3 Orient ORH-G35A LED in 0805 package
* 1 diode in 0805 package (e.g. CD4148WSP)
* 1 0.1 µF capacitor in 0805 package
* 1 0.01 µF capacitor in 0805 package
* 3 15 kΩ resistors in 0805 package
* 1 Boom Precision C21377 micro USB-B connector
* 2 4-pin single row headers, 2.54 mm spacing (e.g. Nextronics Z-211-0411-0021-001)
* 1 6-pin single row header, 2.54 mm spacing (e.g. Nextronics Z-211-0611-0021-001)

Components (f-eval-pdk-s16 and f-eval-pdk-s16):

* 1 Padauk PFC154, PFC232, PFC460, PFS122, PFS132, PFS154, PFS172, PFS173, PFS232, or PGS134 microcontroller in 16-pin SOIC package
* 5 Orient ORH-G35A LED in 0805 package
* 1 diode in 0805 package (e.g. CD4148WSP)
* 1 0.1 µF capacitor in 0805 package
* 1 0.01 µF capacitor in 0805 package
* 5 15 kΩ resistors in 0805 package
* 1 Boom Precision C21377 micro USB-B connector
* 2 8-pin single row headers, 2.54 mm spacing (e.g. Nextronics Z-211-0811-0021-001)
* 1 6-pin single row header, 2.54 mm spacing (e.g. Nextronics Z-211-0611-0021-001)