Configuration

After turning on the GPIOE peripheral. The peripheral still needs to be configured. In this case, wewant the pins to be configured as digital outputs so they can drive the LEDs; by default, mostpins are configured as digital inputs.

You can find the list of registers in the GPIOE register block in:

Section 11.4.12 - GPIO registers - Page 243 - Reference Manual

The register we’ll have to deal with is: MODER.

Your task for this section is to further update the starter code to configure the right GPIOEpins as digital outputs. You’ll have to:

• Figure out which pins you need to configure as digital outputs. (hint: check Section 6.4 LEDs ofthe User Manual (page 18)).
• Read the documentation to understand what the bits in the MODER register do.
• Modify the MODER register to configure the pins as digital outputs.

If successful, you’ll see the 8 LEDs turn on when you run the program.