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| use std::{env, path::PathBuf}; | |
| fn main() { | |
| let out = PathBuf::from(env::var_os("OUT_DIR").unwrap()); | |
| let ld = &out.join("artinchip-rt.ld"); | |
| std::fs::write(ld, LINKER_SCRIPT).unwrap(); | |
| println!("cargo:rustc-link-arg=-T{}", ld.display()); | |
| println!("cargo:rustc-link-search={}", out.display()); | |
| } | |
| const LINKER_SCRIPT: &[u8] = b"OUTPUT_ARCH(riscv) | |
| ENTRY(_start) | |
| SECTIONS { | |
| . = 0x30044000 - 0x8; | |
| .head : ALIGN(4) { | |
| KEEP(*(.head.pbp)) | |
| } | |
| . = 0x30044000; | |
| .text : ALIGN(4) { | |
| *(.text.entry) | |
| *(.text .text.*) | |
| } | |
| .rodata : ALIGN(4) { | |
| srodata = .; | |
| *(.rodata .rodata.*) | |
| *(.srodata .srodata.*) | |
| . = ALIGN(4); | |
| erodata = .; | |
| } | |
| .data : ALIGN(4) { | |
| sdata = .; | |
| *(.data .data.*) | |
| *(.sdata .sdata.*) | |
| . = ALIGN(4); | |
| edata = .; | |
| } | |
| sidata = LOADADDR(.data); | |
| .bss (NOLOAD) : ALIGN(4) { | |
| *(.bss.uninit) | |
| sbss = .; | |
| *(.bss .bss.*) | |
| *(.sbss .sbss.*) | |
| ebss = .; | |
| } | |
| /DISCARD/ : { | |
| *(.eh_frame) | |
| } | |
| }"; |
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| #![no_std] | |
| #![no_main] | |
| use artinchip_hal::{cmu, gpio, prelude::*}; | |
| use artinchip_rt::{Peripherals, pbp_entry}; | |
| use panic_halt as _; | |
| use riscv::asm::delay; | |
| #[pbp_entry] | |
| fn pbp_main(_boot_param: u32, _priv_data: &[u8]) { | |
| let p = Peripherals::take(); | |
| let mut pa5 = p.gpioa.pa5.into_pull_up_output(); | |
| let pa10 = p.gpioa.pa10.into_function::<8>(); | |
| let pa11 = p.gpioa.pa11.into_function::<8>(); | |
| let data = 0x1111aaaa; | |
| let mut i = 0; | |
| loop { | |
| if data & (1 << i) != 0 { | |
| pa5.toggle().ok(); | |
| delay(1_000_000); | |
| pa5.toggle().ok(); | |
| delay(1_000_000); | |
| } else { | |
| pa5.toggle().ok(); | |
| delay(500_000); | |
| pa5.toggle().ok(); | |
| delay(500_000); | |
| } | |
| i += 1; | |
| if i == 32 { | |
| i = 0; | |
| } | |
| } | |
| // let one = |pa5: &mut artinchip_hal::gpio::Output<'_>| { | |
| // for _ in 0..4 { | |
| // pa5.toggle().ok(); | |
| // delay(1_000_000); | |
| // } | |
| // }; | |
| // let zero = |pa5: &mut artinchip_hal::gpio::Output<'_>| { | |
| // for _ in 0..4 { | |
| // pa5.toggle().ok(); | |
| // delay(500_000); | |
| // } | |
| // }; | |
| // let data = 0x5555aaaa; | |
| // for i in 0..31 { | |
| // let bit = ((data >> i) & 0b1) != 0; | |
| // if bit { | |
| // one(&mut pa5); | |
| // } else { | |
| // zero(&mut pa5); | |
| // } | |
| // } | |
| // delay(3_000_000); | |
| // let cmu = unsafe { &*(0x18020000 as *const cmu::RegisterBlock) }; | |
| // // unsafe { | |
| // // // 1.2GHz / (24 + 1) = 48MHz | |
| // // cmu.clock_uart0.modify(|v| { | |
| // // v.enable_module_reset() | |
| // // .enable_module_clk() | |
| // // .set_module_clk_div(24) | |
| // // }); | |
| // // cmu.clock_uart0.modify(|v| v.enable_bus_clk()); | |
| // // cmu.clock_uart0.modify(|v| v.disable_module_reset()); | |
| // // } | |
| // // let data: u32 = unsafe { core::mem::transmute(cmu.clock_uart0.read()) }; | |
| // // let gpio = unsafe { &*(0x18700000 as *const gpio::RegisterBlock) }; | |
| // // let gpioa = &gpio.groups[0]; | |
| // loop { | |
| // for i in 0..31 { | |
| // let bit = ((data >> i) & 0b1) != 0; | |
| // if bit { | |
| // one(&mut pa5); | |
| // } else { | |
| // zero(&mut pa5); | |
| // } | |
| // } | |
| // delay(3_000_000); | |
| // } | |
| // // unsafe { | |
| // // // pa0 = 0x325 | |
| // // gpioa.pin_config[0].modify(|v| { | |
| // // v.set_pin_pull(gpio::PinPull::PullUp) | |
| // // .set_drive_strength(gpio::PinDriveStrength::Level2) | |
| // // .set_pin_func(5) | |
| // // }); | |
| // // // pa1 = 0x325 | |
| // // gpioa.pin_config[1].modify(|v| { | |
| // // v.set_pin_pull(gpio::PinPull::PullUp) | |
| // // .set_drive_strength(gpio::PinDriveStrength::Level2) | |
| // // .set_pin_func(5) | |
| // // }); | |
| // // } | |
| // let uart0 = unsafe { &*(0x18710000 as *const uart16550::Uart16550<u32>) }; | |
| // // 48MHz / 417 ≈ 115200 Bd * (1 - 0.08%) | |
| // uart0.write_divisor(417); | |
| // // 115200 8N1 | |
| // let lcr = uart0.lcr().read(); | |
| // uart0.lcr().write( | |
| // lcr.set_char_len(uart16550::CharLen::EIGHT) | |
| // .set_one_stop_bit(true) | |
| // .set_parity(uart16550::PARITY::NONE), | |
| // ); | |
| // uart0.write(b"Hello World from Rust Artinchip HAL!\n"); | |
| } |
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