diff options
Diffstat (limited to 'examples/uart_interrupt.rs')
| -rw-r--r-- | examples/uart_interrupt.rs | 100 |
1 files changed, 50 insertions, 50 deletions
diff --git a/examples/uart_interrupt.rs b/examples/uart_interrupt.rs index bd734f859..190a4d850 100644 --- a/examples/uart_interrupt.rs +++ b/examples/uart_interrupt.rs | |||
| @@ -2,68 +2,68 @@ | |||
| 2 | #![no_main] | 2 | #![no_main] |
| 3 | 3 | ||
| 4 | use embassy_executor::Spawner; | 4 | use embassy_executor::Spawner; |
| 5 | use embassy_mcxa276 as hal; | 5 | // use embassy_mcxa276 as hal; |
| 6 | use hal::interrupt::typelevel::Handler; | 6 | // use hal::interrupt::typelevel::Handler; |
| 7 | use hal::uart; | 7 | // use hal::uart; |
| 8 | 8 | ||
| 9 | mod common; | 9 | // mod common; |
| 10 | 10 | ||
| 11 | use embassy_mcxa276::bind_interrupts; | 11 | // use embassy_mcxa276::bind_interrupts; |
| 12 | use {defmt_rtt as _, panic_probe as _}; | 12 | // use {defmt_rtt as _, panic_probe as _}; |
| 13 | 13 | ||
| 14 | // Bind LPUART2 interrupt to our handler | 14 | // // Bind LPUART2 interrupt to our handler |
| 15 | bind_interrupts!(struct Irqs { | 15 | // bind_interrupts!(struct Irqs { |
| 16 | LPUART2 => hal::uart::UartInterruptHandler; | 16 | // LPUART2 => hal::uart::UartInterruptHandler; |
| 17 | }); | 17 | // }); |
| 18 | 18 | ||
| 19 | #[used] | 19 | // #[used] |
| 20 | #[no_mangle] | 20 | // #[no_mangle] |
| 21 | static KEEP_LPUART2: unsafe extern "C" fn() = LPUART2; | 21 | // static KEEP_LPUART2: unsafe extern "C" fn() = LPUART2; |
| 22 | 22 | ||
| 23 | // Wrapper function for the interrupt handler | 23 | // // Wrapper function for the interrupt handler |
| 24 | unsafe extern "C" fn lpuart2_handler() { | 24 | // unsafe extern "C" fn lpuart2_handler() { |
| 25 | hal::uart::UartInterruptHandler::on_interrupt(); | 25 | // hal::uart::UartInterruptHandler::on_interrupt(); |
| 26 | } | 26 | // } |
| 27 | 27 | ||
| 28 | #[embassy_executor::main] | 28 | #[embassy_executor::main] |
| 29 | async fn main(_spawner: Spawner) { | 29 | async fn main(_spawner: Spawner) { |
| 30 | let _p = hal::init(hal::config::Config::default()); | 30 | // let _p = hal::init(hal::config::Config::default()); |
| 31 | 31 | ||
| 32 | // Enable/clock UART2 before touching its registers | 32 | // // Enable/clock UART2 before touching its registers |
| 33 | unsafe { | 33 | // unsafe { |
| 34 | common::init_uart2(hal::pac()); | 34 | // common::init_uart2(hal::pac()); |
| 35 | } | 35 | // } |
| 36 | let src = unsafe { hal::clocks::uart2_src_hz(hal::pac()) }; | 36 | // let src = unsafe { hal::clocks::uart2_src_hz(hal::pac()) }; |
| 37 | let uart = uart::Uart::<uart::Lpuart2>::new(_p.LPUART2, uart::Config::new(src)); | 37 | // let uart = uart::Uart::<uart::Lpuart2>::new(_p.LPUART2, uart::Config::new(src)); |
| 38 | 38 | ||
| 39 | // Configure LPUART2 interrupt for UART operation BEFORE any UART usage | 39 | // // Configure LPUART2 interrupt for UART operation BEFORE any UART usage |
| 40 | hal::interrupt::LPUART2.configure_for_uart(hal::interrupt::Priority::from(3)); | 40 | // hal::interrupt::LPUART2.configure_for_uart(hal::interrupt::Priority::from(3)); |
| 41 | 41 | ||
| 42 | // Manually install the interrupt handler and enable RX IRQs in the peripheral | 42 | // // Manually install the interrupt handler and enable RX IRQs in the peripheral |
| 43 | unsafe { | 43 | // unsafe { |
| 44 | hal::interrupt::LPUART2.install_handler(lpuart2_handler); | 44 | // hal::interrupt::LPUART2.install_handler(lpuart2_handler); |
| 45 | // Enable RX interrupts so the handler actually fires on incoming bytes | 45 | // // Enable RX interrupts so the handler actually fires on incoming bytes |
| 46 | uart.enable_rx_interrupts(); | 46 | // uart.enable_rx_interrupts(); |
| 47 | } | 47 | // } |
| 48 | 48 | ||
| 49 | // Print welcome message | 49 | // // Print welcome message |
| 50 | uart.write_str_blocking("UART interrupt echo demo starting...\r\n"); | 50 | // uart.write_str_blocking("UART interrupt echo demo starting...\r\n"); |
| 51 | uart.write_str_blocking("Type characters to echo them back.\r\n"); | 51 | // uart.write_str_blocking("Type characters to echo them back.\r\n"); |
| 52 | 52 | ||
| 53 | // Log using defmt if enabled | 53 | // // Log using defmt if enabled |
| 54 | defmt::info!("UART interrupt echo demo starting..."); | 54 | // defmt::info!("UART interrupt echo demo starting..."); |
| 55 | 55 | ||
| 56 | loop { | 56 | // loop { |
| 57 | // Check if we have received any data | 57 | // // Check if we have received any data |
| 58 | if uart.rx_data_available() { | 58 | // if uart.rx_data_available() { |
| 59 | if let Some(byte) = uart.try_read_byte() { | 59 | // if let Some(byte) = uart.try_read_byte() { |
| 60 | // Echo it back | 60 | // // Echo it back |
| 61 | uart.write_byte(byte); | 61 | // uart.write_byte(byte); |
| 62 | uart.write_str_blocking(" (received)\r\n"); | 62 | // uart.write_str_blocking(" (received)\r\n"); |
| 63 | } | 63 | // } |
| 64 | } else { | 64 | // } else { |
| 65 | // No data available, wait a bit before checking again | 65 | // // No data available, wait a bit before checking again |
| 66 | cortex_m::asm::delay(12_000_000); // ~1 second at 12MHz | 66 | // cortex_m::asm::delay(12_000_000); // ~1 second at 12MHz |
| 67 | } | 67 | // } |
| 68 | } | 68 | // } |
| 69 | } | 69 | } |
