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Kevin Thomas
2026-03-19 15:01:07 -04:00
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WEEK03/WEEK03-02.md
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# Embedded Systems Reverse Engineering
# Embedded Systems Reverse Engineering
[Repository](https://github.com/mytechnotalent/Embedded-Hacking)
## Week 3
Embedded System Analysis: Understanding the RP2350 Architecture w/ Comprehensive Firmware Analysis
### Exercise 2: Find the Stack Size
### Non-Credit Practice Exercise 2: Find the Stack Size
#### Objective
Calculate the size of the stack by examining the vector table, understanding the linker script's memory layout, and performing manual calculations.
@@ -92,7 +92,7 @@ Let's convert to decimal:
##### Step 5: Convert to Kilobytes
```
Bytes to KB = 40,960 ÷ 1,024 = 40 KB
Bytes to KB = 40,960 ÷ 1,024 = 40 KB
```
So the stack is **40 KB** in size.
@@ -102,7 +102,7 @@ So the stack is **40 KB** in size.
Cross-check with the memory layout:
- **RAM**: `0x20000000` - `0x20080000` (512 KB)
- **SCRATCH_X**: `0x20080000` - `0x20081000` (4 KB)
- **SCRATCH_Y**: `0x20081000` - `0x20082000` (4 KB) ← Stack lives here
- **SCRATCH_Y**: `0x20081000` - `0x20082000` (4 KB) ? Stack lives here
- **Stack range**: `0x20078000` - `0x20082000` (40 KB)
The stack extends from SCRATCH_Y down into the upper portion of main RAM.