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feat: set ospi memory mapped mode

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Signed-off-by: Haobo Gu <haobogu@outlook.com>
This commit is contained in:
Haobo Gu 2024-10-23 12:54:50 +08:00
parent 398119ae43
commit e5bc266654
1 changed files with 37 additions and 0 deletions
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37
embassy-stm32/src/ospi/mod.rs
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@ -179,6 +179,43 @@ pub struct Ospi<'d, T: Instance, M: PeriMode> {
}
impl<'d, T: Instance, M: PeriMode> Ospi<'d, T, M> {
pub fn enable_memory_mapped_mode(&mut self) {
let reg = T::REGS;
while reg.sr().read().busy() {
info!("wait ospi busy");
}
reg.ccr().modify(|r| {
r.set_isize(crate::ospi::vals::SizeInBits::_8BIT);
r.set_adsize(crate::ospi::vals::SizeInBits::_24BIT);
r.set_admode(crate::ospi::vals::PhaseMode::ONELINE);
r.set_imode(crate::ospi::vals::PhaseMode::ONELINE);
r.set_dmode(crate::ospi::vals::PhaseMode::FOURLINES);
});
reg.cr().modify(|r| {
r.set_fmode(crate::ospi::vals::FunctionalMode::MEMORYMAPPED);
r.set_dmaen(false);
r.set_en(true);
});
// reg.tcr().modify(|r| {
// r.set_dcyc(6);
// });
}
pub fn disable_memory_mapped_mode(&mut self) {
let reg = T::REGS;
while reg.sr().read().busy() {
info!("wait ospi busy");
}
reg.cr().modify(|r| {
r.set_fmode(crate::ospi::vals::FunctionalMode::INDIRECTWRITE);
r.set_dmaen(false);
r.set_en(true);
});
}
fn new_inner(
peri: impl Peripheral<P = T> + 'd,
d0: Option<PeripheralRef<'d, AnyPin>>,