Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/tweedegolf/ads129xx
Rust driver for the TI ads129 AFE for ECG applications
https://github.com/tweedegolf/ads129xx
Last synced: about 1 month ago
JSON representation
Rust driver for the TI ads129 AFE for ECG applications
- Host: GitHub
- URL: https://github.com/tweedegolf/ads129xx
- Owner: tweedegolf
- License: mit
- Created: 2019-10-25T07:13:40.000Z (about 5 years ago)
- Default Branch: master
- Last Pushed: 2020-02-26T07:34:04.000Z (almost 5 years ago)
- Last Synced: 2024-08-10T09:13:26.364Z (5 months ago)
- Language: Rust
- Size: 39.1 KB
- Stars: 4
- Watchers: 8
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# ADS129xx
Driver crate for the Texas Instruments ADS1292 24-bit 2-channel low-power analog front end for ECG applications.
This initial version supports the ADS1292 (for the most part), but it's a goal to support the ADS1291 and ADS1292R as well.
Contributions welcome!
## Usage example
```rust
// spi: spi interface
// ncs: not-Chip-Select pin
// timer: timer, 500kHz timeout.
let spi_device = SpiDevice::new(spi, ncs, timer)?;
let mut ads = Ads1292::init(spi_device)?;
// start conversions
ads.cmd(ads129xx::Command::START).unwrap();
ads.wait(200)?; // Wait a while in between sending commands
ads.cmd(ads129xx::Command::RDATAC).unwrap();
ads.wait(200)?;
let mut stream = ads.into_data_stream()?;
let mut buf = [[ChannelData::default(); 2]; 10];
// Opens stream, sends RDATAC command to ads
let data_stream = ads1292.into_data_stream()?;
ads.wait(200)?;
// A buffer to read data into
let mut buf = [[Ads1292Data::default(); 2]; 2000];
for i in buf.iter_mut() {
// some way of finding out NDRDY has been low since last read (preferably by an interrupt-set flag)
while !data_ready() {}
// data_stream always returns data (for now), so we can unwrap here
*i = data_stream.next().unwrap()?;
}
// Don't forget to close; this will send the SDATAC command to the ads
data_stream.into_inner();
```
## Functionality
- Send commands:
```rust
ads1292.cmd(Command::START)?;
```
- Write to registers
```rust
ads1292.write_register(Register::CONFIG1, 0b001)?;
```
- Read from registers
```rust
let lead_off_status = ads1292.read_register(Register::LOFF_STAT)?;
```
- Read data
```rust
let data = ads1292.read_data()?;
```
- Read data continuously
```rust
// Opens stream, sends RDATAC command to ads
let data_stream = ads1292.into_data_stream()?;
let mut buf = [[Ads1292Data::default(); 2]; 2000];
for i in buf.iter_mut() {
while !data_ready() {}
*i = data_stream.next().unwrap().unwrap();
}
// Don't forget to close; this will send the SDATAC command to the ads
data_stream.into_inner();
```
## TODO's
- [ ] Support ADS1292R
- [ ] Support ADS1291
- [ ] Non-blockingly wait after sending SPI commands
- [ ] Documentation
- [ ] Separate device-specific and universal code