How to run the quickstart code on LPCXpresso55S69?

[tarun0yadav]

I am trying to run the sample code on my LPCXpresso55S69 board. My goal is just to print "in main" on my terminal through main function. I am using following jlink.gdb

# source .gdb-dashboard
set history save on
set confirm off
set pagination off
define rebootloop
  while (1)
    run
  end
end

target extended-remote :2331
load
monitor reset
monitor semihosting enable
monitor semihosting IOClient 3
continue

My main.rs code is:

#![no_std]
#![no_main]

#[macro_use]
extern crate delog;
generate_macros!();

// pick a panicking behavior
use panic_halt as _; // you can put a breakpoint on `rust_begin_unwind` to catch panics
// use panic_abort as _; // requires nightly
// use panic_itm as _; // logs messages over ITM; requires ITM support
// use panic_semihosting as _; // logs messages to the host stderr; requires a debugger

use cortex_m::asm;
use cortex_m_rt::entry;

#[entry]
fn main() -> ! {
    // asm::nop(); // To not have main optimize to abort in release mode, remove when you add code
    info_now!("In main");

    loop {
        // your code goes here
    }
}

When I run code, it does not print anything and goes in the forever loop. I tried to add a breakpoint at "info_now!("In main");" but even after breakpoint, it always goes to loop. I am assuming my memory.x might be messed up. memory.x

MEMORY
{
  /* NOTE 1 K = 1 KiBi = 1024 bytes */
  /* TODO Adjust these memory regions to match your device memory layout */
  /* These values correspond to the LM3S6965, one of the few devices QEMU can emulate */
    FLASH : ORIGIN = 0x00000000, LENGTH = 512K

    FILESYSTEM: ORIGIN = 0x00080000, LENGTH = 118K

    /* for use with standard link.x */
    RAM : ORIGIN = 0x20000000, LENGTH = 256K
}

terminal output:

cargo run --release --features log-all,log-info,log-semihosting
warning: unused import: `cortex_m::asm`
  --> src/main.rs:14:5
   |
14 | use cortex_m::asm;
   |     ^^^^^^^^^^^^^
   |
   = note: `#[warn(unused_imports)]` on by default

warning: `test-rust-cortex-app` (bin "test-rust-cortex-app") generated 1 warning (run `cargo fix --bin "test-rust-cortex-app"` to apply 1 suggestion)
    Finished release [optimized + debuginfo] target(s) in 0.08s
     Running `arm-none-eabi-gdb -q -x jlink.gdb target/thumbv8m.main-none-eabi/release/test-rust-cortex-app`
Reading symbols from target/thumbv8m.main-none-eabi/release/test-rust-cortex-app...
test_rust_cortex_app::__cortex_m_rt_main () at /Users/tarun.yadav/Desktop/test-rust-cortex-app/src/main.rs:22
22      loop {
Loading section .vector_table, size 0x400 lma 0x0
Loading section .text, size 0x27c lma 0x400
Start address 0x00000400, load size 1660
Transfer rate: 13280 bits in <1 sec, 830 bytes/write.
Resetting target
Semi-hosting enabled (Handle on breakpoint instruction hit)
Semihosting I/O set to TELNET and GDB Client
^C
Program received signal SIGTRAP, Trace/breakpoint trap.
cortex_m_rt::Reset () at src/lib.rs:526
526         () => main(),
(gdb) break main.rs:18
Breakpoint 1 at 0x3c (2 locations)
(gdb) run
Starting program: /Users/tarun.yadav/Desktop/test-rust-cortex-app/target/thumbv8m.main-none-eabi/release/test-rust-cortex-app 
[New Thread 57005]
[Switching to Thread 57005]

Thread 2 hit Breakpoint 1, test_rust_cortex_app::__cortex_m_rt_main () at /Users/tarun.yadav/Desktop/test-rust-cortex-app/src/main.rs:22
22      loop {