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fix position of clear bit; add backpressure feature for NTO

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bunnie 2024-11-19 00:00:18 +08:00
parent 53de9cc273
commit e8e28702e2
1 changed files with 8 additions and 2 deletions
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10
libs/cramium-hal/src/udma/mod.rs
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@ -350,11 +350,17 @@ pub(crate) const CFG_SIZE_16: u32 = 0b00_0010; // 16-bit transfer
#[allow(dead_code)]
pub(crate) const CFG_SIZE_32: u32 = 0b00_0100; // 32-bit transfer
#[allow(dead_code)]
pub(crate) const CFG_CLEAR: u32 = 0b10_0000; // stop and clear all pending transfers
/// NOTE NOTE NOTE: The position of this bit is different in the RTL from the documentation
/// Bit 6 is what is in the RTL, so we are using this instead of bit 5, which is the docus
pub(crate) const CFG_CLEAR: u32 = 0b100_0000; // stop and clear all pending transfers
#[allow(dead_code)]
pub(crate) const CFG_PENDING: u32 = 0b10_0000; // on read, indicates a transfer pending
/// NOTE NOTE NOTE: the transfer pending bit *is* in the correct place
pub(crate) const CFG_PENDING: u32 = 0b10_0000; // indicates a transfer pending
pub(crate) const CFG_SHADOW: u32 = 0b10_0000; // indicates a shadow transfer
#[allow(dead_code)]
pub(crate) const CFG_BACKPRESSURE: u32 = 0b1000_0000; // use RX backpressure to stall interface (found on SPIM in NTO)
#[repr(usize)]
pub enum Bank {
Rx = 0,