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UART EasyDMA example #272

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UART EasyDMA example #272

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d5ec82e
uarte0 example working
Nov 30, 2020
14d90f9
use rust slice semantics
Dec 1, 2020
51f25b8
use rprint instead of rprintln
Dec 1, 2020
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use rprint instead of rprintln
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Jesse committed Dec 1, 2020
commit 51f25b8d45ae4aa2126ebd931e0c68af3be7eaaf
2 changes: 1 addition & 1 deletion examples/uarte-demo/Embed.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,7 @@ channels = [
# The duration in ms for which the logger should retry to attach to RTT.
timeout = 3000
# Whether timestamps in the RTTUI are enabled
show_timestamps = true
show_timestamps = false
# Whether to save rtt history buffer on exit.
log_enabled = false
# Where to save rtt history buffer relative to manifest path.
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11 changes: 4 additions & 7 deletions examples/uarte-demo/src/main.rs
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Expand Up @@ -11,13 +11,14 @@ use {
cortex_m_rt::entry,
hal::gpio::Level,
nrf52840_hal as hal,
rtt_target::{rprintln, rtt_init_print},
rtt_target::{rprintln, rprint, rtt_init_print},
};

#[inline(never)]
#[panic_handler]
fn panic(_info: &PanicInfo) -> ! {
fn panic(info: &PanicInfo) -> ! {
cortex_m::interrupt::disable();
rprintln!("{}", info);
loop {
compiler_fence(Ordering::SeqCst);
}
Expand Down Expand Up @@ -68,12 +69,8 @@ fn main() -> ! {
// write buffer back
serial.write(&rx_buffer).unwrap();

// strip the new line since rprintln automatically adds one
if rx_buffer[index - 1] == '\n' as u8 {
rx_buffer[index - 1] = 0;
}
// duplicating messages over rtt to compare results
rprintln!("{}", str::from_utf8(&rx_buffer).unwrap());
rprint!(str::from_utf8(&rx_buffer).unwrap());

// reset the buffer so we don't have stale data
rx_buffer.iter_mut().for_each(|m| *m = 0);
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