Note: follow this tutorial the first time you use a new FlexSEA-Execute board (one that was never programmed).

FlexSEA-Execute has two microcontrollers. The first one that needs to be programmed is the Safety-CoP, a PSoC 4. Unless you work on low-level security code, you will only need to program this microcontroller once.

• 1x FlexSEA-Execute 0.x with connectors
• 1x MiniProg3
• 1x Execute Prog Adapt
• PSoC Creator and 2x code projects

Step 1) Power the board

Connect a power cable between Execute and a lab power supply. It is recommended to start with 0V and a low current limit, then slowly increase the voltage while making sure that the current stays low the first time that you power a new board. When you reach reach a few volts 4 LEDs should turn on. You can use any voltage from 10 to 48V. I usually keep it low while programming for the first time (my current setup is 15V with a current limit <100mA), just in case something is wrong on the board.

Other power options include using the USB port, or powering at 5V from the MiniProg. Using an external supply is usually the most stable option.

Open PSoC Creator, File > Open > Project/Workspace > navigate to …\execute-cop\execute-cop.cydsn\ and select the .cywrk file. Build execute-cop and make sure that there is no error message. Connect the FFC to the Execute board. You will want to use the connecter that says “4”, or “CoP”. The FFC connectors accept two orientations. The most convenient one is to have the conductors facing the PCB. In any case, make sure to use the same orientation on both ends of the cable.

Click Program. You’ll get a log similar to this:

The Red LED right next to the PSoC 4 (The one marked with an ‘E’ on hardware v0.2)  should flash “aggressively” because the PSoC 5 isn’t programmed. The picture below is of a new Execute 0.1 being programmed for the first time:

Programming FlexSEA-Execute 0.x.