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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
pub mod sealed {
use super::super::*;
use crate::bit::*;
use crate::pac;
pub(crate) trait Instance {
fn id() -> Id;
#[inline]
fn block() -> &'static pac::adc::RegisterBlock {
match Self::id() {
Id::ADC1 => unsafe { pac::ADC::PTR.as_ref().unwrap() },
}
}
/// 开始校准
#[inline]
fn calibration_start() {
Self::block().cr.modify(|_, w| w.adcal().set_bit());
}
/// 使能 adc 外设
#[inline]
fn enable() {
Self::block().cr.modify(|_, w| w.aden().set_bit())
}
/// 关闭 adc 使能
#[inline]
fn disable() {
Self::block().cr.modify(|_, w| w.aden().clear_bit())
}
/// 设置时钟模式
#[inline]
fn set_clock_mode(clock: ClockMode) {
Self::block()
.cfgr2
.modify(|_, w| unsafe { w.ckmode().bits(clock as u8) })
}
/// 启动转换
#[inline]
fn start() {
Self::block().cr.modify(|_, w| w.adstart().set_bit());
}
/// 停止转换
#[inline]
fn stop() {
Self::block().cr.modify(|_, w| w.adstp().set_bit());
}
// #[inline]
// fn analog_watch_dog_select(channel: AdcChannel) {
// Self::block()
// .cfgr1
// .modify(|_, w| unsafe { w.awdch().bits(channel as u8) });
// }
// #[inline]
// fn analog_watch_dog_enable(en: bool) {
// Self::block().cfgr1.modify(|_, w| w.awden().bit(en));
// }
#[inline]
fn conversion_mode(mode: ConversionMode) {
let (cont, discen) = match mode {
ConversionMode::Single => (false, false),
ConversionMode::Continuous => (true, false),
ConversionMode::Discontinuous => (false, true),
};
Self::block()
.cfgr1
.modify(|_, w| w.discen().bit(discen).cont().bit(cont))
}
/// 设置过写
#[inline]
fn set_overwrite(en: bool) {
Self::block().cfgr1.modify(|_, w| w.ovrmod().bit(en));
}
// /// 设置等待模式
// fn wait_mode(en: bool) {
// Self::block().cfgr1.modify(|_, w| w.wait().bit(en));
// }
/// 触发信号的类型
#[inline]
fn trigle_signal(trigle: TrigleSignal) {
let (exten, extsel) = match trigle {
TrigleSignal::Soft => (0, 0),
TrigleSignal::Rising(s) => (1, s as u8),
TrigleSignal::Falling(s) => (2, s as u8),
TrigleSignal::RisingFalling(s) => (3, s as u8),
};
Self::block()
.cfgr1
.modify(|_, w| unsafe { w.exten().bits(exten).extsel().bits(extsel) });
}
// /// 配置为软件触发
// #[inline]
// fn is_soft_trigle() -> bool {
// Self::block().cfgr1.read().exten().bits() == 0
// }
/// 阻塞事件时是否等待消除阻塞
#[inline]
fn set_wait(wait: bool) {
Self::block().cfgr1.modify(|_, w| w.wait().bit(wait));
}
/// 设置对齐格式
#[inline]
fn align(align: Align) {
Self::block()
.cfgr1
.modify(|_, w| w.align().bit(Align::Left == align))
}
/// 设置 adc 的精度
#[inline]
fn set_resolution(bit: Resolution) {
Self::block()
.cfgr1
.modify(|_, w| unsafe { w.ressel().bits(bit as u8) })
}
#[inline]
fn set_scan_dir(dir: ScanDir) {
Self::block()
.cfgr1
.modify(|_, w| w.scandir().bit(dir == ScanDir::Down))
}
// /// 设置dma模式
// #[inline]
// fn set_dma_mode(mode: DmaMode) {
// Self::block()
// .cfgr1
// .modify(|_, w| w.dmacfg().bit(mode == DmaMode::Cycle))
// }
// /// dma 使能
// #[inline]
// fn dma_enable(en: bool) {
// Self::block().cfgr1.modify(|_, w| w.dmaen().bit(en))
// }
/// 设置转换的采样周期
#[inline]
fn set_sample_cycle(cycle: SampleCycles) {
Self::block()
.smpr
.modify(|_, w| unsafe { w.smp().bits(cycle as u8) })
}
/// 设置看门狗预支
#[inline]
fn set_watch_dog_threshold(high: u16, low: u16) {
Self::block()
.tr
.modify(|_, w| unsafe { w.ht().bits(high).lt().bits(low) })
}
/// 通道使能或关闭
#[inline]
fn channel_enable(channel: AdcChannel, en: bool) {
// 仅当 ADSART=0 时（确保没有正在进行的转换）允许软件写该位
Self::block().chselr.modify(|r, w| unsafe {
w.bits(bit_mask_idx_modify::<1>(
channel as usize,
r.bits(),
if en { 1 } else { 0 },
))
});
if channel == AdcChannel::Channel11 {
Self::block().ccr.modify(|_, w| w.tsen().bit(en))
} else if channel == AdcChannel::Channel12 {
Self::block().ccr.modify(|_, w| w.vrefen().bit(en))
}
}
#[allow(dead_code)]
fn channel_enable_exclusive(channel: AdcChannel) {
// 仅当 ADSART=0 时（确保没有正在进行的转换）允许软件写该位
Self::block()
.chselr
.write(|w| unsafe { w.bits(bit_mask_idx::<1>(channel as usize)) });
if channel == AdcChannel::Channel11 {
Self::block().ccr.modify(|_, w| w.tsen().bit(true))
} else if channel == AdcChannel::Channel12 {
Self::block().ccr.modify(|_, w| w.vrefen().bit(true))
}
}
/// 返回转换的数据寄存器内容
#[inline]
fn data_read() -> u16 {
Self::block().dr.read().data().bits()
}
/// 设置校准采样时间
#[inline]
fn set_calibration_sample_time(time: CalibrationSampleTime) {
Self::block()
.ccsr
.modify(|_, w| unsafe { w.calsmp().bits(time as u8) })
}
/// 校准内容
#[inline]
fn set_calibration_content(select: CalibrationSelect) {
Self::block()
.ccsr
.modify(|_, w| w.calsel().bit(select == CalibrationSelect::OffsetLinearity))
}
#[inline]
fn event_flag(event: Event) -> bool {
let isr = Self::block().isr.read();
match event {
Event::EOSMP => isr.eosmp().bit(),
Event::EOC => isr.eoc().bit(),
Event::EOSEQ => isr.eoseq().bit(),
Event::OVR => isr.ovr().bit(),
Event::AWD => isr.awd().bit(),
}
}
#[inline]
#[allow(dead_code)]
fn event_config(event: Event, en: bool) {
Self::block().ier.modify(|_, w| match event {
Event::EOSMP => w.eosmpie().bit(en),
Event::EOC => w.eocie().bit(en),
Event::EOSEQ => w.eoseqie().bit(en),
Event::OVR => w.ovrie().bit(en),
Event::AWD => w.awdie().bit(en),
});
}
#[inline]
#[allow(dead_code)]
fn event_clear(event: Event) {
Self::block().isr.modify(|_, w| match event {
Event::EOSMP => w.eosmp().set_bit(),
Event::EOC => w.eoc().set_bit(),
Event::EOSEQ => w.eoseq().set_bit(),
Event::OVR => w.ovr().set_bit(),
Event::AWD => w.awd().set_bit(),
});
}
}
}