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clock_generator/firmware/rust/src/lcd.rs
finga 2fe25e584f
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fw-rust: Configure display temperature curve 
Set the temperature compensation curve to -0.11%/°C.
2022-04-08 00:18:06 +02:00

336 lines
11 KiB
Rust
Raw Blame History

use atmega_hal::{
delay::Delay,
port::{mode::Output, Pin, PB0, PB1},
Spi,
};
use core::convert::TryInto;
use embedded_hal::{blocking::delay::DelayUs, spi::FullDuplex};
use nb::block;
use crate::{assets::SYMBOL_TABLE, eeprom, DefaultClock, CONTRAST};
// TODO: Make `cd` and `rst` pins generic pins
pub struct Lcd {
pub spi: Spi,
pub cd: Pin<Output, PB0>,
rst: Pin<Output, PB1>,
}
impl Lcd {
pub fn new(spi: Spi, cd: Pin<Output, PB0>, rst: Pin<Output, PB1>) -> Self {
Self { spi, cd, rst }
}
pub fn init(&mut self) {
self.rst.set_high();
let init_sequence = [
0x40, // (6) Set Scroll Line: Display start line 0
0xA1, // (13) Set SEG direction: SEG reverse
0xC0, // (14) Set COM direction: Normal COM0 - COM63
0xA6, // (11) Set Inverse Display: Display inverse off
0xA2, // (17) Set LCD Bias Ratio: Set Bias 1/9 (Duty 1/65)
0x2F, // (5) Set Power Control: Booster, Regulator and Follower on
0x27, // (8) Set VLCD Resistor Ratio: Set Contrast
0xEE, // (18) Reset Cursor Update Mode
0x81, // (9) Set Electronic Volume: Set Contrast
nb::block!(eeprom::read_byte(&CONTRAST)).unwrap(), // (9) Set Electronic Volume: Set Contrast
0xFA, // (25) Set Adv. Program Control 0: Set Temperature compensation curve to -0.11%/°C
0x90, // (25) Set Adv. Program Control 0: Set Temperature compensation curve to -0.11%/°C
0xAF, // (12) Set Display Enable: Display on
];
for i in init_sequence.iter() {
block!(self.spi.send(*i)).unwrap();
}
}
pub fn set_contrast(&mut self, contrast: u8) {
assert!(contrast <= 63);
block!(self.spi.send(0x81)).unwrap(); // (9) Set Electronic Volume: Set Contrast
block!(self.spi.send(contrast)).unwrap(); // (9) Set Electronic Volume: Set Contrast
}
pub fn move_cursor(&mut self, segment: u8, page: u8) {
assert!(segment < 102);
assert!(page < 8);
block!(self.spi.send(0x0F & segment)).unwrap();
block!(self.spi.send(0x10 + (segment >> 4))).unwrap();
block!(self.spi.send(0xB0 + page)).unwrap();
}
fn fill(&mut self, segment: u8, page: u8, width: u8, data: u8) {
assert!(segment + width <= 102);
let mut delay = Delay::<DefaultClock>::new();
self.move_cursor(segment, page);
delay.delay_us(5_u8);
self.cd.set_high();
for _ in 0..width {
block!(self.spi.send(data)).unwrap();
}
delay.delay_us(5_u8);
self.cd.set_low();
}
pub fn fill_area(&mut self, segment: u8, page: u8, width: u8, height: u8, data: u8) {
assert!(page + height <= 8);
for i in 0..height {
self.fill(segment, page + i, width, data);
}
}
pub fn print(&mut self, segment: u8, page: u8, string: &str) {
let mut delay = Delay::<DefaultClock>::new();
for i in 0..2 {
self.move_cursor(segment, page + i);
delay.delay_us(5_u8);
self.cd.set_high();
block!(self.spi.send(0x00)).unwrap();
block!(self.spi.send(0x00)).unwrap();
for c in string.chars() {
for segment in SYMBOL_TABLE[c as usize - 46][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
delay.delay_us(5_u8);
self.cd.set_low();
}
}
pub fn print_inverted(&mut self, segment: u8, page: u8, string: &str) {
let mut delay = Delay::<DefaultClock>::new();
for i in 0..2 {
self.move_cursor(segment, page + i);
delay.delay_us(5_u8);
self.cd.set_high();
block!(self.spi.send(0xFF)).unwrap();
block!(self.spi.send(0xFF)).unwrap();
for c in string.chars() {
for segment in SYMBOL_TABLE[c as usize - 46][i as usize] {
block!(self.spi.send(!*segment)).unwrap();
}
block!(self.spi.send(0xFF)).unwrap();
}
block!(self.spi.send(0xFF)).unwrap();
delay.delay_us(5_u8);
self.cd.set_low();
}
}
pub fn print_u8(&mut self, segment: u8, page: u8, digits: u8, data: u8) {
assert!(digits <= 3);
let mut delay = Delay::<DefaultClock>::new();
let mut array = [0_usize; 3];
for (i, item) in array.iter_mut().enumerate() {
*item = (((data / 10_u8.pow(i.try_into().unwrap())) % 10) + 2).into();
}
array.reverse();
for i in 0..2 {
self.move_cursor(segment, page + i);
delay.delay_us(5_u8);
self.cd.set_high();
block!(self.spi.send(0x00)).unwrap();
block!(self.spi.send(0x00)).unwrap();
for j in 3 - digits..3 {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
delay.delay_us(5_u8);
self.cd.set_low();
}
}
pub fn print_u8_inverted(&mut self, segment: u8, page: u8, digits: u8, data: u8) {
assert!(digits <= 3);
let mut delay = Delay::<DefaultClock>::new();
let mut array = [0usize; 3];
for (i, item) in array.iter_mut().enumerate() {
*item = (((data / 10_u8.pow(i.try_into().unwrap())) % 10) + 2).into();
}
array.reverse();
for i in 0..2 {
self.move_cursor(segment, page + i);
delay.delay_us(5_u8);
self.cd.set_high();
block!(self.spi.send(0xFF)).unwrap();
block!(self.spi.send(0xFF)).unwrap();
for j in 3 - digits..3 {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(!*segment)).unwrap();
}
block!(self.spi.send(0xFF)).unwrap();
}
block!(self.spi.send(0xFF)).unwrap();
delay.delay_us(5_u8);
self.cd.set_low();
}
}
pub fn print_freq(&mut self, segment: u8, page: u8, data: u32) {
let mut delay = Delay::<DefaultClock>::new();
let mut array = [0usize; 9];
for (i, item) in array.iter_mut().enumerate() {
*item = (((data / 10_u32.pow(i.try_into().unwrap())) % 10) + 2)
.try_into()
.unwrap();
}
array.reverse();
for i in 0..2 {
self.move_cursor(segment, page + i);
delay.delay_us(5_u8);
self.cd.set_high();
block!(self.spi.send(0x00)).unwrap();
block!(self.spi.send(0x00)).unwrap();
for j in 0..3 {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
}
for segment in SYMBOL_TABLE[0][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
for j in 3..6 {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
}
for segment in SYMBOL_TABLE[0][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
for j in 6..9 {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
delay.delay_us(5_u8);
self.cd.set_low();
}
}
pub fn print_freq_digit(&mut self, segment: u8, page: u8, data: u32, digit: u8) {
let mut delay = Delay::<DefaultClock>::new();
let mut array = [0usize; 9];
for (i, item) in array.iter_mut().enumerate() {
*item = (((data / 10_u32.pow(i.try_into().unwrap())) % 10) + 2)
.try_into()
.unwrap();
}
array.reverse();
let digit = 8 - digit;
for i in 0..2 {
self.move_cursor(segment, page + i);
delay.delay_us(5_u8);
self.cd.set_high();
block!(self.spi.send(0x00)).unwrap();
block!(self.spi.send(0x00)).unwrap();
for j in 0..3 {
if j == digit {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(!*segment)).unwrap();
}
} else {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
}
block!(self.spi.send(0x00)).unwrap();
}
for segment in SYMBOL_TABLE[0][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
for j in 3..6 {
if j == digit {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(!*segment)).unwrap();
}
} else {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
}
block!(self.spi.send(0x00)).unwrap();
}
for segment in SYMBOL_TABLE[0][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
for j in 6..9 {
if j == digit {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(!*segment)).unwrap();
}
} else {
for segment in SYMBOL_TABLE[array[j as usize]][i as usize] {
block!(self.spi.send(*segment)).unwrap();
}
}
block!(self.spi.send(0x00)).unwrap();
}
block!(self.spi.send(0x00)).unwrap();
delay.delay_us(5_u8);
self.cd.set_low();
}
}
pub fn print_icon(&mut self, segment: u8, page: u8, symbol: &[u8]) {
let mut delay = Delay::<DefaultClock>::new();
self.move_cursor(segment, page);
delay.delay_us(5_u8);
self.cd.set_high();
for c in symbol {
block!(self.spi.send(*c)).unwrap();
}
delay.delay_us(5_u8);
self.cd.set_low();
}
}
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