TheEmbeddedRust
/
soft-serial
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

first commit

This commit is contained in:
doryan 2025-04-21 21:36:22 +04:00
commit 901b58cd27
19 changed files with 894 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
Cargo.toml Normal file
View File

@ -0,0 +1,27 @@
[package]
name = "soft-serial"
version = "0.1.0"
edition = "2021"
[dependencies.arduino-hal]
git = "https://github.com/rahix/avr-hal"
rev = "3e362624547462928a219c40f9ea8e3a64f21e5f"
features = ["sparkfun-promicro"]
[dependencies.static_pins]
git = "https://gitea.doryan04.ru/TheEmbeddedRust/static_pins"
[dependencies.avr-device]
version = "0.5.4"
[profile.dev]
panic = "abort"
codegen-units = 1
debug = true
lto = true
opt-level = "s"
[profile.release]
panic = "abort"
lto = true
opt-level = "s"

41
avr-specs/avr-atmega1280.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega1280",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega1280",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega1280",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega1284p.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega1284p",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega1284p",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega1284p",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega128a.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega128a",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega128a",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega128a",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega164pa.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega164pa",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega164pa",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega164pa",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega168.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega168",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega168",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega168",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega2560.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega2560",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega2560",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega2560",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega328.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega328",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega328",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega328",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega328p.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega328p",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega328p",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega328p",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega32a.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega32a",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega32a",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega32a",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega32u4.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega32u4",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega32u4",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega32u4",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega48p.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega48p",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega48p",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega48p",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-atmega8.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "atmega8",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=atmega8",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=atmega8",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-attiny167.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "attiny167",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=attiny167",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=attiny167",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-attiny2313.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "attiny2313",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=attiny2313",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=attiny2313",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-attiny85.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "attiny85",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=attiny85",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=attiny85",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

41
avr-specs/avr-attiny88.json Normal file
View File

@ -0,0 +1,41 @@
{
"arch": "avr",
"atomic-cas": false,
"cpu": "attiny88",
"crt-objects-fallback": "false",
"data-layout": "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8",
"eh-frame-header": false,
"exe-suffix": ".elf",
"late-link-args": {
"gnu-cc": [
"-lgcc"
],
"gnu-lld-cc": [
"-lgcc"
]
},
"linker": "avr-gcc",
"linker-flavor": "gnu-cc",
"llvm-target": "avr-unknown-unknown",
"max-atomic-width": 8,
"metadata": {
"description": null,
"host_tools": null,
"std": null,
"tier": null
},
"no-default-libraries": false,
"pre-link-args": {
"gnu-cc": [
"-mmcu=attiny88",
"-Wl,--as-needed,--print-memory-usage"
],
"gnu-lld-cc": [
"-mmcu=attiny88",
"-Wl,--as-needed,--print-memory-usage"
]
},
"relocation-model": "static",
"target-c-int-width": "16",
"target-pointer-width": "16"
}

4
rust-toolchain.toml Normal file
View File

@ -0,0 +1,4 @@
[toolchain]
channel = "nightly-2024-06-13"
components = [ "rust-src" ]
profile = "default"

207
src/lib.rs Normal file
View File

@ -0,0 +1,207 @@
use core::marker::PhantomData;
use arduino_hal::{
delay_us,
pac::EXINT,
port::{
mode::{Input, PullUp},
Pin, PinOps,
},
};
use avr_device::asm::delay_cycles;
use static_pins::StaticPinOps;
pub type PollResult = Result<(), PollError>;
pub type ReadByteResult = Result<u8, CorruptedData>;
pub type CorruptedData = (u8, u8);
const SERIAL_DELAY: u32 = 4;
const FIRST_HALF_SERIAL_DELAY: u32 = SERIAL_DELAY / 2;
const SECOND_HALF_SERIAL_DELAY: u32 = SERIAL_DELAY - FIRST_HALF_SERIAL_DELAY;
const READING_ADJUST: u32 = 16;
const FIRST_ENTRY_READING: u32 = 30;
const LSB: u8 = 0x01;
const MSB: u8 = 0x80;
pub enum PollError {
NotFound,
NotReady,
}
pub struct HalfDuplexSerial<P> {
_pin: PhantomData<Pin<Input<PullUp>, P>>,
}
impl<P> HalfDuplexSerial<P>
where
P: PinOps + StaticPinOps,
{
#[inline]
pub fn new(_pin: Pin<Input<PullUp>, P>, exint: &EXINT) -> Self {
exint.eimsk.write(|w| w.bits(1 << 1));
exint.eicra.write(|w| unsafe { w.bits(!(1 << 3 | 1 << 2)) });
Self {
_pin: PhantomData {},
}
}
}
pub trait SoftSerial<P>
where
P: PinOps + StaticPinOps,
{
fn poll(&self) -> PollResult;
fn response(&self);
fn sync_reciever(&self);
fn sync_transmitter(&self);
fn write_byte(&self, data: u8);
fn read_byte(&self) -> ReadByteResult;
#[inline]
fn finish_write(&self) {
P::into_pull_up_input();
while P::is_low() {}
}
fn write_bytes(&self, transmit_data: &[u8]) {
for byte in transmit_data {
self.write_byte(*byte);
self.sync_transmitter();
}
}
fn read_bytes(&self, recieve_buffer: &mut [u8]) {
for byte in recieve_buffer {
if let Ok(data) = self.read_byte() {
*byte = data;
}
self.sync_reciever();
}
}
}
impl<P> SoftSerial<P> for HalfDuplexSerial<P>
where
P: PinOps + StaticPinOps,
{
fn poll(&self) -> PollResult {
P::into_output();
delay_cycles(1);
P::into_pull_up_input();
delay_us(SERIAL_DELAY);
if P::is_low() {
return PollResult::Err(PollError::NotFound);
}
delay_us(SERIAL_DELAY);
if P::is_high() {
return PollResult::Err(PollError::NotReady);
}
while P::is_low() {}
PollResult::Ok(())
}
fn response(&self) {
P::into_output_high();
delay_us(FIRST_HALF_SERIAL_DELAY);
P::set_low();
delay_us(SERIAL_DELAY);
P::into_pull_up_input();
}
#[inline(never)]
fn sync_transmitter(&self) {
P::into_output();
delay_us(SERIAL_DELAY);
P::set_high();
}
#[inline(never)]
fn sync_reciever(&self) {
while P::is_high() {}
while P::is_low() {}
}
#[inline(never)]
fn write_byte(&self, data: u8) {
let (mut data, mut parity_bit) = (data, 0);
for _ in 0..8 {
if data & MSB == 0 {
P::set_high();
parity_bit ^= 0;
} else {
P::set_low();
parity_bit ^= 1;
}
delay_us(SERIAL_DELAY);
data <<= 1;
}
// Hamming code and CRC are very weightful and slow, so I use simple parity check
if parity_bit == 0 {
P::set_high();
} else {
P::set_low();
}
delay_us(SERIAL_DELAY);
}
#[inline(never)]
fn read_byte(&self) -> ReadByteResult {
let (mut data, mut reciever_parity_bit) = (0, 0);
delay_cycles(FIRST_ENTRY_READING);
for _ in 0..8 {
delay_us(FIRST_HALF_SERIAL_DELAY);
if P::is_low() {
data |= 1;
reciever_parity_bit ^= 1;
} else {
data |= 0;
reciever_parity_bit ^= 0;
}
delay_cycles(READING_ADJUST);
delay_us(SECOND_HALF_SERIAL_DELAY);
data <<= 1;
}
delay_us(FIRST_HALF_SERIAL_DELAY);
let transmitter_parity_bit = (P::read() >> P::PIN_NUM) & LSB;
delay_cycles(READING_ADJUST);
delay_us(SECOND_HALF_SERIAL_DELAY);
if reciever_parity_bit != transmitter_parity_bit {
return Err((data, reciever_parity_bit));
}
Ok(data)
}
}