27 lines
1.2 KiB
Rust
27 lines
1.2 KiB
Rust
//! IRQ Router peripheral support.
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use crate::{
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clock::{PeripheralSelect, SyscfgExt},
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pac,
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};
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/// This enables and initiates the peripheral.
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///
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/// Please note that this method also writes 0 to the registers which do not have 0 as the default
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/// reset value. The programmers guide v1.2 and the actual values inspected using a SVD viewer
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/// are inconsistent here, and the registers being non-zero can actually lead to weird bugs
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/// when working with interrupts. Registers DMASELx and ADCSEL/DMASELx will reset to 0x7f and 0x1f
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/// respectively instead of 0x00.
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pub fn enable_and_init_irq_router(sysconfig: &mut pac::Sysconfig, irq_router: &pac::IrqRouter) {
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sysconfig.enable_peripheral_clock(PeripheralSelect::IrqRouter);
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sysconfig.assert_periph_reset_for_two_cycles(PeripheralSelect::IrqRouter);
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unsafe {
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irq_router.dmasel0().write_with_zero(|w| w);
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irq_router.dmasel1().write_with_zero(|w| w);
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irq_router.dmasel2().write_with_zero(|w| w);
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irq_router.dmasel3().write_with_zero(|w| w);
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irq_router.adcsel().write_with_zero(|w| w);
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irq_router.dacsel0().write_with_zero(|w| w);
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irq_router.dacsel1().write_with_zero(|w| w);
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}
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}
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