Source: samek-embedded

Pointers

• Variables which hold memory addresses.
• Can also be viewed as arrays .

Declaration

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int *p_int;

Assignment

Address/pointer assignment

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p_int = &another_variable;
p_int = (unsigned int *)0x20000000U;

Dereferencing

Value assignment

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*p_int = 0xDEADBEEFU;

Shortcut

Skips declaration, goes directly to value assignment.

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*((unsigned int *)0x20000000U) = 0xDEADBEEFU;