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| author |  Danilo Bargen <mail@dbrgn.ch>
| 2020-06-26 23:46:09 +0200 |
|---|---|---|
| committer | Danilo Bargen <mail@dbrgn.ch>
| 2020-06-26 23:53:11 +0200 |
| commit | 8e636f0d1286cf905518022d42adf9624bed44df (patch) | |
| tree | 403f42f246a9a0f4550af2f955912e4c49c92b57 /examples/task.rs | |
| parent | 8a4f9c6b8ae91bebeea0791680f89375a78bffc6 (diff) | |
| download | rtic-8e636f0d1286cf905518022d42adf9624bed44df.tar.gz rtic-8e636f0d1286cf905518022d42adf9624bed44df.tar.zst rtic-8e636f0d1286cf905518022d42adf9624bed44df.zip | |
Examples: Clarify extern section
Some beginners are confused about the "extern" section, so I added an
explanation comment to all examples. Furthermore, using the UARTx
interrupts when UART is actually being used in the same example may be
confusing, so I changed them all to SSI0/QEI0.
Diffstat (limited to 'examples/task.rs')
| -rw-r--r-- | examples/task.rs | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/examples/task.rs b/examples/task.rs index 10a4dc73..12c4ac83 100644 --- a/examples/task.rs +++ b/examples/task.rs @@ -45,9 +45,11 @@ const APP: () = { hprintln!("baz").unwrap(); } - // Interrupt handlers used to dispatch software tasks + // RTIC requires that unused interrupts are declared in an extern block when + // using software tasks; these free interrupts will be used to dispatch the + // software tasks. extern "C" { - fn UART0(); - fn UART1(); + fn SSI0(); + fn QEI0(); } }; |