Chapter 9. Clock Driver

You can follow the instructions in this chapter without doing those of the previous ones. For this, before doing them:

• with the Arduino: connect the Arduino to your computer. Press the ERASE button for a few seconds, then press the RESET button. In a terminal on the host computer, type python3 flash_helper.py < backups/clock_driver.txt (in the directory where you unzipped scripts.zip).
• with the emulator: open this page.

9.7 Experiments

Note: at the end of this section, and if you use the emulator, you should see an "Unsupported instruction" error message instead of seeing the LED blink very fast. This is because, in case of errors, the emulator shows a message instead of executing the Hard Fault handler.