Use aligned address to demonstrate HardFault

rust-embedded · Aug 18, 2024 · 2251b57 · 2251b57
1 parent 019f392
commit 2251b57
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/src/start/exceptions.md b/src/start/exceptions.md
@@ -213,7 +213,7 @@ use cortex_m_semihosting::hio;
 fn main() -> ! {
  // read a nonexistent memory location
  unsafe {
- ptr::read_volatile(0x3FFF_FFFE as *const u32);
+ ptr::read_volatile(0x3FFF_0000 as *const u32);
  }
 
  loop {}
@@ -236,14 +236,14 @@ you'll see something like this on the OpenOCD console.
 $ openocd
 (..)
 ExceptionFrame {
- r0: 0x3ffffffe,
- r1: 0x00f00000,
- r2: 0x20000000,
+ r0: 0x3fff0000,
+ r1: 0x00000003,
+ r2: 0x080032e8,
  r3: 0x00000000,
  r12: 0x00000000,
- lr: 0x080008f7,
- pc: 0x0800094a,
- xpsr: 0x61000000
+ lr: 0x080016df,
+ pc: 0x080016e2,
+ xpsr: 0x61000000,
 }
 ```