blob: 7d966eb6a83daa0898074780b36f78efdceb1063 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
//! Support for booting the Cortex M7 on the i.MX RT 1170 EVK.
use crate::ral;
#[cfg(target_arch = "arm")]
use imxrt1170evk_fcb as _;
#[cfg(target_arch = "arm")]
use panic_rtt_target as _;
const LED_OFFSET: u32 = 3;
pub mod rtic_support {
pub use crate::ral::NVIC_PRIO_BITS;
#[allow(non_snake_case)] // For RTIC trickery...
pub mod Interrupt {
pub const PIT: crate::ral::Interrupt = crate::ral::Interrupt::PIT1;
}
pub use Interrupt as interrupt;
}
pub fn prepare(timer_delay_microseconds: u32) -> Option<crate::Resources> {
#[cfg(target_arch = "arm")]
rtt_target::rtt_init_print!();
let iomuxc = unsafe { ral::iomuxc::IOMUXC::instance() };
ral::modify_reg!(ral::iomuxc, iomuxc, SW_MUX_CTL_PAD_GPIO_AD_04, MUX_MODE: 5);
let ccm = unsafe { ral::ccm::CCM::instance() };
// Enable LPCG for GPIOs.
ral::write_reg!(ral::ccm, ccm, LPCG51_DIRECT, 1);
let gpio = unsafe { ral::gpio::GPIO3::instance() };
let pit = crate::prepare_pit(timer_delay_microseconds)?;
Some(crate::Resources {
pit,
led: crate::Led::new(LED_OFFSET, &gpio),
})
}
|
