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
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
#![macro_use]
#[cfg_attr(usart_v1, path = "v1.rs")]
#[cfg_attr(usart_v2, path = "v2.rs")]
#[cfg_attr(usart_v3, path = "v3.rs")]
mod _version;
use crate::peripherals;
pub use _version::*;
use crate::gpio::Pin;
use crate::rcc::RccPeripheral;
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum DataBits {
DataBits8,
DataBits9,
}
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum Parity {
ParityNone,
ParityEven,
ParityOdd,
}
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub enum StopBits {
#[doc = "1 stop bit"]
STOP1,
#[doc = "0.5 stop bits"]
STOP0P5,
#[doc = "2 stop bits"]
STOP2,
#[doc = "1.5 stop bits"]
STOP1P5,
}
#[non_exhaustive]
#[derive(Clone, Copy, PartialEq, Eq, Debug)]
pub struct Config {
pub baudrate: u32,
pub data_bits: DataBits,
pub stop_bits: StopBits,
pub parity: Parity,
}
impl Default for Config {
fn default() -> Self {
Self {
baudrate: 115200,
data_bits: DataBits::DataBits8,
stop_bits: StopBits::STOP1,
parity: Parity::ParityNone,
}
}
}
/// Serial error
#[derive(Debug, Eq, PartialEq, Copy, Clone)]
#[cfg_attr(feature = "defmt", derive(defmt::Format))]
#[non_exhaustive]
pub enum Error {
/// Framing error
Framing,
/// Noise error
Noise,
/// RX buffer overrun
Overrun,
/// Parity check error
Parity,
}
pub(crate) mod sealed {
use super::*;
#[cfg(any(dma, bdma, dmamux))]
use crate::dma_traits::WriteDma;
pub trait Instance {
fn regs(&self) -> crate::pac::usart::Usart;
}
pub trait RxPin<T: Instance>: Pin {
fn af_num(&self) -> u8;
}
pub trait TxPin<T: Instance>: Pin {
fn af_num(&self) -> u8;
}
pub trait CtsPin<T: Instance>: Pin {
fn af_num(&self) -> u8;
}
pub trait RtsPin<T: Instance>: Pin {
fn af_num(&self) -> u8;
}
pub trait CkPin<T: Instance>: Pin {
fn af_num(&self) -> u8;
}
#[cfg(any(bdma, dma, dmamux))]
pub trait RxDma<T: Instance> {}
#[cfg(any(bdma, dma, dmamux))]
pub trait TxDma<T: Instance>: WriteDma<T> {}
}
pub trait Instance: sealed::Instance + RccPeripheral {}
pub trait RxPin<T: Instance>: sealed::RxPin<T> {}
pub trait TxPin<T: Instance>: sealed::TxPin<T> {}
pub trait CtsPin<T: Instance>: sealed::CtsPin<T> {}
pub trait RtsPin<T: Instance>: sealed::RtsPin<T> {}
pub trait CkPin<T: Instance>: sealed::CkPin<T> {}
#[cfg(any(bdma, dma, dmamux))]
pub trait RxDma<T: Instance>: sealed::RxDma<T> {}
#[cfg(any(bdma, dma, dmamux))]
pub trait TxDma<T: Instance>: sealed::TxDma<T> {}
crate::pac::peripherals!(
(usart, $inst:ident) => {
impl sealed::Instance for peripherals::$inst {
fn regs(&self) -> crate::pac::usart::Usart {
crate::pac::$inst
}
}
impl Instance for peripherals::$inst {}
};
);
macro_rules! impl_pin {
($inst:ident, $pin:ident, $signal:ident, $af:expr) => {
impl sealed::$signal<peripherals::$inst> for peripherals::$pin {
fn af_num(&self) -> u8 {
$af
}
}
impl $signal<peripherals::$inst> for peripherals::$pin {}
};
}
crate::pac::peripheral_pins!(
// USART
($inst:ident, usart, USART, $pin:ident, TX, $af:expr) => {
impl_pin!($inst, $pin, TxPin, $af);
};
($inst:ident, usart, USART, $pin:ident, RX, $af:expr) => {
impl_pin!($inst, $pin, RxPin, $af);
};
($inst:ident, usart, USART, $pin:ident, CTS, $af:expr) => {
impl_pin!($inst, $pin, CtsPin, $af);
};
($inst:ident, usart, USART, $pin:ident, RTS, $af:expr) => {
impl_pin!($inst, $pin, RtsPin, $af);
};
($inst:ident, usart, USART, $pin:ident, CK, $af:expr) => {
impl_pin!($inst, $pin, CkPin, $af);
};
// UART
($inst:ident, uart, UART, $pin:ident, TX, $af:expr) => {
impl_pin!($inst, $pin, TxPin, $af);
};
($inst:ident, uart, UART, $pin:ident, RX, $af:expr) => {
impl_pin!($inst, $pin, RxPin, $af);
};
($inst:ident, uart, UART, $pin:ident, CTS, $af:expr) => {
impl_pin!($inst, $pin, CtsPin, $af);
};
($inst:ident, uart, UART, $pin:ident, RTS, $af:expr) => {
impl_pin!($inst, $pin, RtsPin, $af);
};
($inst:ident, uart, UART, $pin:ident, CK, $af:expr) => {
impl_pin!($inst, $pin, CkPin, $af);
};
);
|
