use esp-println for logging to UART

Cargo.lock

@@ -557,7 +557,7 @@ dependencies = [
  "document-features",
  "enumset",
  "esp-config",
- "esp-sync",
+ "esp-sync 0.1.1",
  "linked_list_allocator",
  "rlsf",
 ]
@@ -626,7 +626,7 @@ dependencies = [
  "esp-metadata-generated 0.3.0",
  "esp-riscv-rt",
  "esp-rom-sys",
- "esp-sync",
+ "esp-sync 0.1.1",
  "esp-synopsys-usb-otg",
  "esp32",
  "esp32c2",
@@ -676,6 +676,19 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42c2ee95b945a4780796e4359e72c033aed3b45073880e8029458f538532db8a"
 
+[[package]]
+name = "esp-println"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42dee1e9ac7c3539bf6464db1707b0edd7557168f98278cf3c84fe70e63c6ce6"
+dependencies = [
+ "defmt 1.1.0",
+ "document-features",
+ "esp-metadata-generated 0.4.0",
+ "esp-sync 0.2.1",
+ "log",
+]
+
 [[package]]
 name = "esp-radio-rtos-driver"
 version = "0.2.0"
@@ -726,7 +739,7 @@ dependencies = [
  "esp-hal-procmacros",
  "esp-metadata-generated 0.3.0",
  "esp-radio-rtos-driver",
- "esp-sync",
+ "esp-sync 0.1.1",
  "portable-atomic",
 ]
 
@@ -746,6 +759,22 @@ dependencies = [
  "xtensa-lx",
 ]
 
+[[package]]
+name = "esp-sync"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4736bfbbb9e3f6353344e14fc61b6d18d3b877c3286914cf8c0a037be0ed224"
+dependencies = [
+ "cfg-if",
+ "document-features",
+ "embassy-sync 0.6.2",
+ "embassy-sync 0.7.2",
+ "embassy-sync 0.8.0",
+ "esp-metadata-generated 0.4.0",
+ "riscv",
+ "xtensa-lx",
+]
+
 [[package]]
 name = "esp-synopsys-usb-otg"
 version = "0.4.2"
@@ -1086,12 +1115,11 @@ dependencies = [
  "defmt 1.1.0",
  "embassy-executor",
  "embassy-time",
- "embedded-io 0.7.1",
  "esp-alloc",
  "esp-bootloader-esp-idf",
  "esp-hal",
+ "esp-println",
  "esp-rtos",
- "rtt-target",
  "static_cell",
  "ws2812-rs",
 ]
@@ -1263,18 +1291,6 @@ dependencies = [
  "svgbobdoc",
 ]
 
-[[package]]
-name = "rtt-target"
-version = "0.6.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7afed1f4302eeba88c601636cf2c554c45e1cbb464bab44c6012bab0e71473c"
-dependencies = [
- "critical-section",
- "defmt 0.3.100",
- "portable-atomic",
- "ufmt-write",
-]
-
 [[package]]
 name = "rustversion"
 version = "1.0.22"

Cargo.toml

@@ -24,12 +24,11 @@ esp-bootloader-esp-idf = { version = "0.4.0", features = ["defmt", "esp32s3"] }
 embassy-executor = { version = "0.9.1", features = ["defmt"] }
 embassy-time     = { version = "0.5.0", features = ["defmt"] }
 esp-alloc        = { version = "0.9.0", features = ["defmt"] }
-rtt-target       = { version = "0.6.2", features = ["defmt"] }
+esp-println = { version = "0.17.0", features = ["colors", "defmt-espflash", "esp32s3", "uart"], default-features = false }
 
 critical-section = "1.2.0"
 static_cell      = "2.1.1"
 ws2812-rs = "0.3.1"
-embedded-io = "0.7.1"
 
 
 [profile.dev]

src/bin/main.rs

@@ -10,13 +10,12 @@
 use defmt::info;
 use embassy_executor::Spawner;
 use embassy_time::Timer;
-use embedded_io::Write;
 use esp_hal::Blocking;
 use esp_hal::clock::CpuClock;
 use esp_hal::spi::master::{Spi, Config as SpiConfig};
 use esp_hal::time::Rate;
 use esp_hal::timer::timg::TimerGroup;
-use esp_hal::uart::{Config, Uart};
+use esp_println::println;
 use ws2812_rs::{WS2812SPI, SendColorBySPI, Color};
 
 #[panic_handler]
@@ -40,8 +39,6 @@ const LED_SPI_HZ: u32 = 3_200_000;
 async fn main(spawner: Spawner) -> ! {
   // generator version: 1.2.0
 
-  rtt_target::rtt_init_defmt!();
-
   let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
   let peripherals = esp_hal::init(config);
 
@@ -57,8 +54,7 @@ async fn main(spawner: Spawner) -> ! {
   let led = WS2812SPI::new(spi);
   spawner.spawn(heartbeat_task(led)).unwrap();
 
-  let uart0: Uart<Blocking> = Uart::new(peripherals.UART0, Config::default()).unwrap();
-  spawner.spawn(serial_task(uart0)).unwrap();
+  spawner.spawn(logging_task()).unwrap();
 
   info!("Padmapper initialized!");
 
@@ -86,9 +82,11 @@ async fn heartbeat_task(mut led: WS2812SPI<Spi<'static, Blocking>>) {
 }
 
 #[embassy_executor::task]
-async fn serial_task(mut uart: Uart<'static, Blocking>) {
+async fn logging_task() {
+  let mut i = 0u64;
   loop {
-    let _ = uart.write_all(b"Hello from Padmapper!\r\n").unwrap();
+    info!("Hello from Padmapper! {}\r\n", i);
     Timer::after_secs(1).await;
+    i += 1;
   }
 }