Add support for parsing integers from all possible formats in the  crate. Also improve some docs.

cli/Cargo.toml

diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index c58f4cf..2dfcabf 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -34,4 +34,4 @@
 parse_int = "0.5.0"
 num-traits = "0.2.14"
 bitfield = "0.13.2"
-jep106 = "0.2.4"
+jep106 = "0.2.4"
\ No newline at end of file

cli/src/main.rs

diff --git a/cli/src/main.rs b/cli/src/main.rs
index 1b5ab31..dd86665 100644
--- a/cli/src/main.rs
+++ b/cli/src/main.rs
@@ -23,32 +23,6 @@
 use std::path::PathBuf;
 use std::time::Instant;
 
-fn parse_hex(src: &str) -> Result<u32, ParseIntError> {
-    u32::from_str_radix(src, 16)
-}
-
-arg_enum! {
-    #[derive(Debug, Clone, Copy)]
-    enum DownloadFileType {
-        Elf,
-        Hex,
-        Bin,
-    }
-}
-
-impl DownloadFileType {
-    fn into(self, base_address: Option<u32>, skip: Option<u32>) -> Format {
-        match self {
-            DownloadFileType::Elf => Format::Elf,
-            DownloadFileType::Hex => Format::Hex,
-            DownloadFileType::Bin => Format::Bin(BinOptions {
-                base_address,
-                skip: skip.unwrap_or(0),
-            }),
-        }
-    }
-}
-
 #[derive(StructOpt)]
 #[structopt(
     name = "Probe-rs CLI",
@@ -98,10 +72,11 @@
         #[structopt(flatten)]
         common: ProbeOptions,
 
-        /// The address of the memory to dump from the target (in hexadecimal without 0x prefix)
-        #[structopt(parse(try_from_str = parse_hex))]
+        /// The address of the memory to dump from the target.
+        #[structopt(parse(try_from_str = parse_u32))]
         loc: u32,
-        /// The amount of memory (in words) to dump
+        /// The amount of memory (in words) to dump.
+        #[structopt(parse(try_from_str = parse_u32))]
         words: u32,
     },
     /// Download memory to attached target
@@ -120,10 +95,10 @@
         format: DownloadFileType,
 
         /// The address in memory where the binary will be put at. This is only considered when `bin` is selected as the format.
-        #[structopt(long)]
+        #[structopt(long, parse(try_from_str = parse_u32))]
         base_address: Option<u32>,
         /// The number of bytes to skip at the start of the binary file. This is only considered when `bin` is selected as the format.
-        #[structopt(long)]
+        #[structopt(long, parse(try_from_str = parse_u32))]
         skip_bytes: Option<u32>,
 
         /// The path to the file to be downloaded to the flash
@@ -143,8 +118,8 @@
         #[structopt(flatten)]
         common: ProbeOptions,
 
-        /// The address of the memory to dump from the target (in hexadecimal without 0x prefix)
-        #[structopt(parse(try_from_str = parse_hex))]
+        /// The address of the memory to dump from the target.
+        #[structopt(parse(try_from_str = parse_u32))]
         loc: u32,
     },
 }
@@ -381,3 +356,29 @@
 
     Ok(())
 }
+
+arg_enum! {
+    #[derive(Debug, Clone, Copy)]
+    enum DownloadFileType {
+        Elf,
+        Hex,
+        Bin,
+    }
+}
+
+impl DownloadFileType {
+    fn into(self, base_address: Option<u32>, skip: Option<u32>) -> Format {
+        match self {
+            DownloadFileType::Elf => Format::Elf,
+            DownloadFileType::Hex => Format::Hex,
+            DownloadFileType::Bin => Format::Bin(BinOptions {
+                base_address,
+                skip: skip.unwrap_or(0),
+            }),
+        }
+    }
+}
+
+fn parse_u32(input: &str) -> Result<u32, ParseIntError> {
+    parse_int::parse(input)
+}