Compare commits
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fix/lcd-di
| Author | SHA1 | Date | |
|---|---|---|---|
6f56f584b6
|
10 changed files with 159 additions and 612 deletions
|
|
@ -4,6 +4,8 @@ target = "thumbv6m-none-eabi"
|
|||
[target.thumbv6m-none-eabi]
|
||||
runner = 'probe-rs run --chip STM32L053R8'
|
||||
|
||||
rustflags = ["-C", "link-arg=-Tlink.x", "-C", "link-arg=-Tdefmt.x"]
|
||||
|
||||
|
||||
[alias]
|
||||
cflash = "flash --chip STM32L053R8"
|
||||
|
|
|
|||
150
Cargo.lock
generated
150
Cargo.lock
generated
|
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@ -23,7 +23,7 @@ version = "0.2.5"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
|
||||
dependencies = [
|
||||
"rustc_version 0.2.3",
|
||||
"rustc_version",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
|
|
@ -58,26 +58,13 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
|
|||
|
||||
[[package]]
|
||||
name = "chrono"
|
||||
version = "0.4.41"
|
||||
version = "0.4.40"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c469d952047f47f91b68d1cba3f10d63c11d73e4636f24f08daf0278abf01c4d"
|
||||
checksum = "1a7964611d71df112cb1730f2ee67324fcf4d0fc6606acbbe9bfe06df124637c"
|
||||
dependencies = [
|
||||
"num-traits",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "compile-time"
|
||||
version = "0.2.0"
|
||||
source = "git+https://github.com/cscherrNT/compile-time-rs#085aecbf1d9fd593b112fcf1b218ec8a6841d1df"
|
||||
dependencies = [
|
||||
"once_cell",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"rustc_version 0.4.1",
|
||||
"semver 1.0.26",
|
||||
"time",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cortex-m"
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version = "0.7.7"
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|
|
@ -168,15 +155,6 @@ dependencies = [
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|||
"defmt 1.0.1",
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||||
]
|
||||
|
||||
[[package]]
|
||||
name = "deranged"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9c9e6a11ca8224451684bc0d7d5a7adbf8f2fd6887261a1cfc3c0432f9d4068e"
|
||||
dependencies = [
|
||||
"powerfmt",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "embedded-hal"
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version = "0.2.7"
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|
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@ -205,15 +183,6 @@ dependencies = [
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"byteorder",
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]
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|
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[[package]]
|
||||
name = "hd44780-driver"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "aab2b13fdeaed7dde9133a57c28b2cbde4a8fc8c3196b5631428aad114857d3a"
|
||||
dependencies = [
|
||||
"embedded-hal",
|
||||
]
|
||||
|
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[[package]]
|
||||
name = "heapless"
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||||
version = "0.8.0"
|
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|
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@ -225,16 +194,10 @@ dependencies = [
|
|||
]
|
||||
|
||||
[[package]]
|
||||
name = "itoa"
|
||||
version = "1.0.15"
|
||||
name = "lcd"
|
||||
version = "0.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
|
||||
|
||||
[[package]]
|
||||
name = "libc"
|
||||
version = "0.2.172"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
|
||||
checksum = "971d8fd9a162c0bda137b341493cce134a2f55f3317b8533d992934bc523c325"
|
||||
|
||||
[[package]]
|
||||
name = "nb"
|
||||
|
|
@ -255,14 +218,12 @@ checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
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|||
name = "nucleo-l053r8-blink"
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||||
version = "0.1.0"
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||||
dependencies = [
|
||||
"chrono",
|
||||
"compile-time",
|
||||
"cortex-m",
|
||||
"cortex-m-rt",
|
||||
"defmt 1.0.1",
|
||||
"defmt-rtt",
|
||||
"hd44780-driver",
|
||||
"heapless",
|
||||
"lcd",
|
||||
"panic-halt",
|
||||
"panic-probe",
|
||||
"stm32l0xx-hal",
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||||
|
|
@ -290,12 +251,6 @@ dependencies = [
|
|||
"num-traits",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "num-conv"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
|
||||
|
||||
[[package]]
|
||||
name = "num-integer"
|
||||
version = "0.1.46"
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||||
|
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@ -336,21 +291,6 @@ dependencies = [
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|||
"autocfg",
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]
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||||
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||||
[[package]]
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||||
name = "num_threads"
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||||
version = "0.1.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c7398b9c8b70908f6371f47ed36737907c87c52af34c268fed0bf0ceb92ead9"
|
||||
dependencies = [
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "once_cell"
|
||||
version = "1.21.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
|
||||
|
||||
[[package]]
|
||||
name = "panic-halt"
|
||||
version = "1.0.0"
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||||
|
|
@ -367,12 +307,6 @@ dependencies = [
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|||
"defmt 0.3.100",
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||||
]
|
||||
|
||||
[[package]]
|
||||
name = "powerfmt"
|
||||
version = "0.2.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro-error-attr2"
|
||||
version = "2.0.0"
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||||
|
|
@ -428,16 +362,7 @@ version = "0.2.3"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
|
||||
dependencies = [
|
||||
"semver 0.9.0",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustc_version"
|
||||
version = "0.4.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
|
||||
dependencies = [
|
||||
"semver 1.0.26",
|
||||
"semver",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
|
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@ -449,38 +374,12 @@ dependencies = [
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|||
"semver-parser",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "semver"
|
||||
version = "1.0.26"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "56e6fa9c48d24d85fb3de5ad847117517440f6beceb7798af16b4a87d616b8d0"
|
||||
|
||||
[[package]]
|
||||
name = "semver-parser"
|
||||
version = "0.7.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
|
||||
|
||||
[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.219"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
|
||||
dependencies = [
|
||||
"serde_derive",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "serde_derive"
|
||||
version = "1.0.219"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn",
|
||||
]
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||||
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||||
[[package]]
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||||
name = "stable_deref_trait"
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||||
version = "1.2.0"
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||||
|
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@ -548,39 +447,6 @@ dependencies = [
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|||
"syn",
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||||
]
|
||||
|
||||
[[package]]
|
||||
name = "time"
|
||||
version = "0.3.41"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8a7619e19bc266e0f9c5e6686659d394bc57973859340060a69221e57dbc0c40"
|
||||
dependencies = [
|
||||
"deranged",
|
||||
"itoa",
|
||||
"libc",
|
||||
"num-conv",
|
||||
"num_threads",
|
||||
"powerfmt",
|
||||
"serde",
|
||||
"time-core",
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||||
"time-macros",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "time-core"
|
||||
version = "0.1.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c9e9a38711f559d9e3ce1cdb06dd7c5b8ea546bc90052da6d06bb76da74bb07c"
|
||||
|
||||
[[package]]
|
||||
name = "time-macros"
|
||||
version = "0.2.22"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3526739392ec93fd8b359c8e98514cb3e8e021beb4e5f597b00a0221f8ed8a49"
|
||||
dependencies = [
|
||||
"num-conv",
|
||||
"time-core",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.18"
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|
|
|
|||
46
Cargo.toml
46
Cargo.toml
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@ -12,46 +12,8 @@ hal = { package = "stm32l0xx-hal", version = "0.10.0", features = [
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cortex-m = { version = "0.7.7", features = ["critical-section-single-core"] }
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cortex-m-rt = "0.7.5"
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panic-halt = "1.0.0"
|
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hd44780-driver = "0.4.0"
|
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heapless = "0.8.0"
|
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defmt = {version="1.0.1", optional= true}
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defmt-rtt = {version="1.0.0", optional=true}
|
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panic-probe = { version = "0.3", features = ["print-defmt"], optional=true }
|
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compile-time = {git = "https://github.com/cscherrNT/compile-time-rs"}
|
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chrono = { version = "0.4.41", default-features = false }
|
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|
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[profile.release]
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debug = "full" # those are not on the board
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|
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[features]
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logging = ["dep:defmt", "dep:defmt-rtt", "dep:panic-probe"]
|
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|
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[[example]]
|
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name = "logging"
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path = "examples/logging.rs"
|
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required-features = ["logging"]
|
||||
|
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[[example]]
|
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name = "rtc-log"
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path = "examples/rtc-log.rs"
|
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required-features = ["logging"]
|
||||
|
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[[example]]
|
||||
name = "temperature"
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path = "examples/temperature.rs"
|
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required-features = ["logging"]
|
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|
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[[example]]
|
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name = "aes_ecb"
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path = "examples/aes_ecb.rs"
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required-features = ["logging"]
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|
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[[example]]
|
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name = "lcd"
|
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path = "examples/lcd.rs"
|
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required-features = ["logging"]
|
||||
|
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[[example]]
|
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name = "lcd-clock"
|
||||
path = "examples/lcd-clock.rs"
|
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required-features = ["logging"]
|
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defmt = "1.0.1"
|
||||
defmt-rtt = "1.0.0"
|
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panic-probe = { version = "0.3", features = ["print-defmt"] }
|
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lcd = "0.4.1"
|
||||
|
|
|
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16
README.md
16
README.md
|
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@ -1,16 +0,0 @@
|
|||
# Example Codes for the STM32 NUCLEO-L053R8
|
||||
|
||||
This repository contains many example programs that are written to run on the
|
||||
NUCLEO-L053R8 Board.
|
||||
|
||||
## Running
|
||||
|
||||
Some programs require additional libraries for logging/formatting that would
|
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make the more basic ones not compile (or rather link) correctly. For those,
|
||||
enable the `logging` feature.
|
||||
|
||||
```bash
|
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cargo run --example=blinky
|
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cargo run --example=rtc-log --features=logging
|
||||
# etc
|
||||
```
|
||||
8
build.rs
8
build.rs
|
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@ -1,8 +0,0 @@
|
|||
fn main() {
|
||||
println!("cargo::rerun-if-changed=Cargo.toml");
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println!("cargo::rustc-link-arg=-Tlink.x");
|
||||
#[cfg(feature = "logging")]
|
||||
{
|
||||
println!("cargo::rustc-link-arg=-Tdefmt.x");
|
||||
}
|
||||
}
|
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|
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@ -1,5 +1,6 @@
|
|||
#![no_main]
|
||||
#![no_std]
|
||||
|
||||
extern crate panic_halt;
|
||||
|
||||
use cortex_m_rt::entry;
|
||||
|
|
@ -7,27 +8,27 @@ use hal::{pac, prelude::*, rcc::Config};
|
|||
|
||||
#[entry]
|
||||
fn main() -> ! {
|
||||
// get access to the peripherals
|
||||
let dp = pac::Peripherals::take().unwrap();
|
||||
let cp = cortex_m::Peripherals::take().unwrap();
|
||||
|
||||
// configure the clock
|
||||
// Configure the clock.
|
||||
let mut rcc = dp.RCC.freeze(Config::hsi16());
|
||||
|
||||
// get access to GPIO Port A
|
||||
// Acquire the GPIOA peripheral. This also enables the clock for GPIOA in
|
||||
// the RCC register.
|
||||
let gpioa = dp.GPIOA.split(&mut rcc);
|
||||
|
||||
// configure Pin 5 og GPIO Port A as output
|
||||
// Configure PA5 as output.
|
||||
let mut led = gpioa.pa5.into_push_pull_output();
|
||||
|
||||
// prepare delays (sleeping)
|
||||
// Get the delay provider.
|
||||
let mut delay = cp.SYST.delay(rcc.clocks);
|
||||
|
||||
loop {
|
||||
led.set_high().unwrap(); // light on
|
||||
delay.delay_ms(500_u16); // wait
|
||||
led.set_high().unwrap();
|
||||
delay.delay_ms(500_u16);
|
||||
|
||||
led.set_low().unwrap(); // light off
|
||||
delay.delay_ms(500_u16); // wait
|
||||
led.set_low().unwrap();
|
||||
delay.delay_ms(500_u16);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,161 +0,0 @@
|
|||
#![no_main]
|
||||
#![no_std]
|
||||
|
||||
use heapless::{String, Vec};
|
||||
use panic_probe as _;
|
||||
|
||||
use defmt_rtt as _; // global logger
|
||||
|
||||
use cortex_m_rt::entry;
|
||||
use hal::{
|
||||
delay::Delay,
|
||||
gpio::{Output, PushPull, gpioa::*, gpiob::*, gpioc::*},
|
||||
pac,
|
||||
prelude::*,
|
||||
rcc::Config,
|
||||
};
|
||||
use hd44780_driver::HD44780;
|
||||
|
||||
#[defmt::panic_handler]
|
||||
fn panic() -> ! {
|
||||
cortex_m::asm::udf()
|
||||
}
|
||||
|
||||
type Lcd = HD44780<
|
||||
hd44780_driver::bus::FourBitBus<
|
||||
PA9<Output<PushPull>>,
|
||||
PC7<Output<PushPull>>,
|
||||
PB5<Output<PushPull>>,
|
||||
PB4<Output<PushPull>>,
|
||||
PB10<Output<PushPull>>,
|
||||
PA8<Output<PushPull>>,
|
||||
>,
|
||||
>;
|
||||
|
||||
const FPS: u32 = 12;
|
||||
const LINES: usize = 4;
|
||||
const CHARS: usize = 20;
|
||||
const SIGNS_LEN: usize = 7;
|
||||
const SIGNS: [char; SIGNS_LEN] = ['N', 'e', 'w', 'T', 'e', 'c', ' '];
|
||||
|
||||
#[entry]
|
||||
fn main() -> ! {
|
||||
let dp = pac::Peripherals::take().unwrap();
|
||||
let cp = cortex_m::Peripherals::take().unwrap();
|
||||
|
||||
let mut rcc = dp.RCC.freeze(Config::hsi16());
|
||||
|
||||
let gpioa = dp.GPIOA.split(&mut rcc);
|
||||
let gpiob = dp.GPIOB.split(&mut rcc);
|
||||
let gpioc = dp.GPIOC.split(&mut rcc);
|
||||
|
||||
// literal D4-D7 ports etc as written on the nucleo board, mapped to the D4-D7 ports of the LCD
|
||||
// controller
|
||||
let d4 = gpiob.pb5.into_push_pull_output();
|
||||
let d5 = gpiob.pb4.into_push_pull_output();
|
||||
let d6 = gpiob.pb10.into_push_pull_output();
|
||||
let d7 = gpioa.pa8.into_push_pull_output();
|
||||
|
||||
// clock enable on D9
|
||||
let en = gpioc.pc7.into_push_pull_output();
|
||||
// register select on D8, the lib wants that but I'd just put it on ground otherwise
|
||||
let rs = gpioa.pa9.into_push_pull_output();
|
||||
|
||||
// See https://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller#Interface
|
||||
// for the pins of the LCD
|
||||
|
||||
let mut delay = cp.SYST.delay(rcc.clocks);
|
||||
|
||||
let mut led = gpioa.pa5.into_push_pull_output();
|
||||
|
||||
let mut lcd: Lcd = HD44780::new_4bit(rs, en, d4, d5, d6, d7, &mut delay)
|
||||
.expect("could not init HD44780 driver");
|
||||
lcd.set_display_mode(
|
||||
hd44780_driver::DisplayMode {
|
||||
cursor_visibility: hd44780_driver::Cursor::Invisible,
|
||||
cursor_blink: hd44780_driver::CursorBlink::Off,
|
||||
display: hd44780_driver::Display::On,
|
||||
},
|
||||
&mut delay,
|
||||
)
|
||||
.expect("could not set display properties");
|
||||
lcd.reset(&mut delay).expect("could not reset the lcd");
|
||||
|
||||
let mut i: usize = 0;
|
||||
let mut buf: Vec<String<CHARS>, LINES> = Vec::new();
|
||||
|
||||
loop {
|
||||
led.set_high().unwrap();
|
||||
|
||||
reset_buf(&mut buf);
|
||||
animation(&mut buf, i);
|
||||
display(&buf, &mut lcd, &mut delay, i % LINES);
|
||||
|
||||
led.set_low().unwrap();
|
||||
|
||||
delay.delay_us(1_000_000 / FPS);
|
||||
i += 1;
|
||||
}
|
||||
}
|
||||
|
||||
fn display<const LINES: usize, const CHARS: usize>(
|
||||
buf: &Vec<String<CHARS>, LINES>,
|
||||
lcd: &mut Lcd,
|
||||
delay: &mut Delay,
|
||||
which: usize,
|
||||
) {
|
||||
match which {
|
||||
0 => {
|
||||
lcd.set_cursor_pos(0, delay)
|
||||
.expect("could not set cursor pos");
|
||||
lcd.write_str(&buf[0], delay)
|
||||
.expect("could not display string");
|
||||
}
|
||||
1 => {
|
||||
lcd.set_cursor_pos(60, delay)
|
||||
.expect("could not set cursor pos");
|
||||
lcd.write_str(&buf[1], delay)
|
||||
.expect("could not display string");
|
||||
}
|
||||
2 => {
|
||||
lcd.set_cursor_pos(20, delay)
|
||||
.expect("could not set cursor pos");
|
||||
lcd.write_str(&buf[2], delay)
|
||||
.expect("could not display string");
|
||||
}
|
||||
3 => {
|
||||
// line 4 is a bit weird and needs some offset
|
||||
let mut tmp: String<30> = String::new();
|
||||
tmp.push_str(" ").unwrap();
|
||||
tmp.push_str(&buf[3]).unwrap();
|
||||
lcd.set_cursor_pos(80, delay)
|
||||
.expect("could not set cursor pos");
|
||||
lcd.write_str(&tmp, delay)
|
||||
.expect("could not display string");
|
||||
}
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
|
||||
fn animation<const LINES: usize, const CHARS: usize>(
|
||||
buf: &mut Vec<String<CHARS>, LINES>,
|
||||
frame: usize,
|
||||
) {
|
||||
for i in 0..CHARS {
|
||||
for (bi, buf) in buf.iter_mut().enumerate() {
|
||||
match buf.push(SIGNS[(i + bi * 2 + frame) % SIGNS_LEN]) {
|
||||
Ok(_) => (),
|
||||
Err(_e) => {
|
||||
panic!("Could not push string in animation. i={}, bi={}", i, bi);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn reset_buf<const LINES: usize, const CHARS: usize>(buf: &mut Vec<String<CHARS>, LINES>) {
|
||||
buf.clear();
|
||||
for _ in 0..LINES {
|
||||
buf.push(String::new()).unwrap();
|
||||
}
|
||||
}
|
||||
|
|
@ -1,162 +0,0 @@
|
|||
#![no_main]
|
||||
#![no_std]
|
||||
|
||||
use chrono::NaiveDateTime;
|
||||
use defmt::info;
|
||||
use heapless::String;
|
||||
use panic_probe as _;
|
||||
|
||||
use defmt_rtt as _; // global logger
|
||||
|
||||
use core::fmt::Write;
|
||||
|
||||
use cortex_m_rt::entry;
|
||||
use hal::{
|
||||
delay::Delay,
|
||||
gpio::{Output, PushPull, gpioa::*, gpiob::*, gpioc::*},
|
||||
pac,
|
||||
prelude::*,
|
||||
pwr::PWR,
|
||||
rcc::Config,
|
||||
rtc::{Datelike, Rtc, Timelike},
|
||||
};
|
||||
use hd44780_driver::HD44780;
|
||||
|
||||
#[defmt::panic_handler]
|
||||
fn panic() -> ! {
|
||||
cortex_m::asm::udf()
|
||||
}
|
||||
|
||||
type Lcd = HD44780<
|
||||
hd44780_driver::bus::FourBitBus<
|
||||
PA9<Output<PushPull>>,
|
||||
PC7<Output<PushPull>>,
|
||||
PB5<Output<PushPull>>,
|
||||
PB4<Output<PushPull>>,
|
||||
PB10<Output<PushPull>>,
|
||||
PA8<Output<PushPull>>,
|
||||
>,
|
||||
>;
|
||||
|
||||
const UNIXTIME_OF_COMPILATION: i64 = compile_time::unix_local!();
|
||||
const BUF_SIZE: usize = 20;
|
||||
|
||||
#[entry]
|
||||
fn main() -> ! {
|
||||
let dp = pac::Peripherals::take().unwrap();
|
||||
let cp = cortex_m::Peripherals::take().unwrap();
|
||||
|
||||
let mut rcc = dp.RCC.freeze(Config::hsi16());
|
||||
let pwr = PWR::new(dp.PWR, &mut rcc);
|
||||
|
||||
let gpioa = dp.GPIOA.split(&mut rcc);
|
||||
let gpiob = dp.GPIOB.split(&mut rcc);
|
||||
let gpioc = dp.GPIOC.split(&mut rcc);
|
||||
|
||||
// literal D4-D7 ports etc as written on the nucleo board, mapped to the D4-D7 ports of the LCD
|
||||
// controller
|
||||
let d4 = gpiob.pb5.into_push_pull_output();
|
||||
let d5 = gpiob.pb4.into_push_pull_output();
|
||||
let d6 = gpiob.pb10.into_push_pull_output();
|
||||
let d7 = gpioa.pa8.into_push_pull_output();
|
||||
|
||||
// clock enable on D9
|
||||
let en = gpioc.pc7.into_push_pull_output();
|
||||
// register select on D8, the lib wants that but I'd just put it on ground otherwise
|
||||
let rs = gpioa.pa9.into_push_pull_output();
|
||||
|
||||
// See https://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller#Interface
|
||||
// for the pins of the LCD
|
||||
|
||||
let mut delay = cp.SYST.delay(rcc.clocks);
|
||||
|
||||
let mut led = gpioa.pa5.into_push_pull_output();
|
||||
|
||||
let mut buf: String<BUF_SIZE> = String::new();
|
||||
let mut lcd: Lcd = HD44780::new_4bit(rs, en, d4, d5, d6, d7, &mut delay)
|
||||
.expect("could not init HD44780 driver");
|
||||
lcd.set_display_mode(
|
||||
hd44780_driver::DisplayMode {
|
||||
cursor_visibility: hd44780_driver::Cursor::Invisible,
|
||||
cursor_blink: hd44780_driver::CursorBlink::Off,
|
||||
display: hd44780_driver::Display::On,
|
||||
},
|
||||
&mut delay,
|
||||
)
|
||||
.expect("could not set display properties");
|
||||
lcd.reset(&mut delay).expect("could not reset the lcd");
|
||||
|
||||
let start_time = chrono::DateTime::from_timestamp(UNIXTIME_OF_COMPILATION, 0)
|
||||
.expect("The Compilation time was invalid")
|
||||
.naive_utc();
|
||||
info!("Compiled time: {}", UNIXTIME_OF_COMPILATION);
|
||||
let mut rtc = Rtc::new(dp.RTC, &mut rcc, &pwr, Some(start_time)).expect("Could not setup RTC");
|
||||
|
||||
let mut i: u32 = 0;
|
||||
let mut timestamp = rtc.now();
|
||||
info!("First RTC time: {}", timestamp.and_utc().timestamp());
|
||||
loop {
|
||||
led.set_high().unwrap();
|
||||
|
||||
timestamp = rtc.now();
|
||||
display_time(
|
||||
×tamp,
|
||||
&mut lcd,
|
||||
&mut delay,
|
||||
&mut buf,
|
||||
timestamp.second() == 0 || i == 0,
|
||||
);
|
||||
|
||||
led.set_low().unwrap();
|
||||
|
||||
delay.delay_us(990_u32);
|
||||
i += 1;
|
||||
}
|
||||
}
|
||||
|
||||
fn display_time(
|
||||
timestamp: &NaiveDateTime,
|
||||
lcd: &mut Lcd,
|
||||
delay: &mut Delay,
|
||||
buf: &mut String<BUF_SIZE>,
|
||||
full_update: bool,
|
||||
) {
|
||||
if full_update {
|
||||
lcd.clear(delay).expect("could not clear the display");
|
||||
|
||||
lcd.set_cursor_pos(0, delay)
|
||||
.expect("could not move cursor to start");
|
||||
|
||||
buf.clear();
|
||||
write!(
|
||||
buf,
|
||||
" {:04}-{:02}-{:02} ",
|
||||
timestamp.year(),
|
||||
timestamp.month(),
|
||||
timestamp.day()
|
||||
)
|
||||
.expect("could not format text content for display");
|
||||
lcd.write_str(buf, delay).expect("could not write to LCD");
|
||||
|
||||
lcd.set_cursor_pos(40, delay)
|
||||
.expect("could not move cursor to start");
|
||||
|
||||
buf.clear();
|
||||
write!(buf, " (UTC) ",).expect("could not format text content for display");
|
||||
lcd.write_str(buf, delay).expect("could not write to LCD");
|
||||
}
|
||||
|
||||
lcd.set_cursor_pos(20, delay)
|
||||
.expect("could not move cursor to line 2");
|
||||
|
||||
buf.clear();
|
||||
write!(
|
||||
buf,
|
||||
" {:02}:{:02}:{:02} ",
|
||||
timestamp.hour(),
|
||||
timestamp.minute(),
|
||||
timestamp.second()
|
||||
)
|
||||
.expect("could not format text content for display");
|
||||
lcd.write_str(buf, delay).expect("could not write to LCD");
|
||||
}
|
||||
191
examples/lcd.rs
191
examples/lcd.rs
|
|
@ -1,8 +1,15 @@
|
|||
#![no_main]
|
||||
#![no_std]
|
||||
|
||||
use defmt::info;
|
||||
use heapless::String;
|
||||
use defmt::{debug, info};
|
||||
use hal::{
|
||||
delay::Delay,
|
||||
gpio::{
|
||||
Output, PushPull,
|
||||
gpioa::{PA8, PA10},
|
||||
gpiob::{PB3, PB4, PB5, PB10},
|
||||
},
|
||||
};
|
||||
use panic_probe as _;
|
||||
|
||||
use defmt_rtt as _; // global logger
|
||||
|
|
@ -11,7 +18,108 @@ use core::fmt::Write;
|
|||
|
||||
use cortex_m_rt::entry;
|
||||
use hal::{pac, prelude::*, rcc::Config};
|
||||
use hd44780_driver::HD44780;
|
||||
|
||||
pub type D2PIN = PA10<Output<PushPull>>;
|
||||
pub type D3PIN = PB3<Output<PushPull>>;
|
||||
pub type D4PIN = PB5<Output<PushPull>>;
|
||||
pub type D5PIN = PB4<Output<PushPull>>;
|
||||
pub type D6PIN = PB10<Output<PushPull>>;
|
||||
pub type D7PIN = PA8<Output<PushPull>>;
|
||||
|
||||
struct LCDHardware<'a> {
|
||||
d4: &'a mut PB5<Output<PushPull>>,
|
||||
d5: &'a mut PB4<Output<PushPull>>,
|
||||
d6: &'a mut PB10<Output<PushPull>>,
|
||||
d7: &'a mut PA8<Output<PushPull>>,
|
||||
rs: &'a mut PA10<Output<PushPull>>,
|
||||
en: &'a mut PB3<Output<PushPull>>,
|
||||
delay: &'a mut Delay,
|
||||
}
|
||||
|
||||
impl<'a> LCDHardware<'a> {
|
||||
fn new(
|
||||
d4: &'a mut D4PIN,
|
||||
d5: &'a mut D5PIN,
|
||||
d6: &'a mut D6PIN,
|
||||
d7: &'a mut D7PIN,
|
||||
rs: &'a mut D2PIN,
|
||||
en: &'a mut D3PIN,
|
||||
delay: &'a mut Delay,
|
||||
) -> lcd::Display<LCDHardware<'a>> {
|
||||
let hw: LCDHardware<'a> = LCDHardware {
|
||||
d4,
|
||||
d5,
|
||||
d6,
|
||||
d7,
|
||||
rs,
|
||||
en,
|
||||
delay,
|
||||
};
|
||||
let mut lcd = lcd::Display::new(hw);
|
||||
lcd.init(lcd::FunctionLine::Line2, lcd::FunctionDots::Dots5x8);
|
||||
lcd.display(
|
||||
lcd::DisplayMode::DisplayOn,
|
||||
lcd::DisplayCursor::CursorOn,
|
||||
lcd::DisplayBlink::BlinkOn,
|
||||
);
|
||||
lcd.entry_mode(
|
||||
lcd::EntryModeDirection::EntryRight,
|
||||
lcd::EntryModeShift::NoShift,
|
||||
);
|
||||
|
||||
lcd
|
||||
}
|
||||
}
|
||||
|
||||
impl lcd::Delay for LCDHardware<'_> {
|
||||
fn delay_us(&mut self, delay_usec: u32) {
|
||||
self.delay.delay_us(delay_usec);
|
||||
}
|
||||
}
|
||||
|
||||
impl lcd::Hardware for LCDHardware<'_> {
|
||||
fn rs(&mut self, bit: bool) {
|
||||
self.rs
|
||||
.set_state(PinState::from(bit))
|
||||
.expect("could not set LCD RS")
|
||||
}
|
||||
|
||||
fn enable(&mut self, bit: bool) {
|
||||
self.en
|
||||
.set_state(PinState::from(bit))
|
||||
.expect("could not set LCD RS")
|
||||
}
|
||||
|
||||
fn data(&mut self, data: u8) {
|
||||
let d4 = data & 0b00000001;
|
||||
let d5 = data & 0b00000010;
|
||||
let d6 = data & 0b00000100;
|
||||
let d7 = data & 0b00001000;
|
||||
|
||||
debug!("Writing data: d4:{}, d5:{}, d6:{}, d7:{}", d4, d5, d6, d7);
|
||||
|
||||
self.d4
|
||||
.set_state(PinState::from(d4 > 0))
|
||||
.expect("could not set LCD D4");
|
||||
self.d5
|
||||
.set_state(PinState::from(d5 > 0))
|
||||
.expect("could not set LCD D5");
|
||||
self.d6
|
||||
.set_state(PinState::from(d6 > 0))
|
||||
.expect("could not set LCD D6");
|
||||
self.d7
|
||||
.set_state(PinState::from(d7 > 0))
|
||||
.expect("could not set LCD D7");
|
||||
}
|
||||
|
||||
fn mode(&self) -> lcd::FunctionMode {
|
||||
lcd::FunctionMode::Bit4
|
||||
}
|
||||
|
||||
fn can_read(&self) -> bool {
|
||||
false
|
||||
}
|
||||
}
|
||||
|
||||
#[defmt::panic_handler]
|
||||
fn panic() -> ! {
|
||||
|
|
@ -27,19 +135,17 @@ fn main() -> ! {
|
|||
|
||||
let gpioa = dp.GPIOA.split(&mut rcc);
|
||||
let gpiob = dp.GPIOB.split(&mut rcc);
|
||||
let gpioc = dp.GPIOC.split(&mut rcc);
|
||||
let _gpioc = dp.GPIOC.split(&mut rcc);
|
||||
|
||||
// literal D4-D7 ports etc as written on the nucleo board, mapped to the D4-D7 ports of the LCD
|
||||
// controller
|
||||
let d4 = gpiob.pb5.into_push_pull_output();
|
||||
let d5 = gpiob.pb4.into_push_pull_output();
|
||||
let d6 = gpiob.pb10.into_push_pull_output();
|
||||
let d7 = gpioa.pa8.into_push_pull_output();
|
||||
// clock enable on D2
|
||||
let mut rs: D2PIN = gpioa.pa10.into_push_pull_output();
|
||||
// register select on D3, the lib wants that but I'd just put it on ground otherwise
|
||||
let mut en: D3PIN = gpiob.pb3.into_push_pull_output();
|
||||
|
||||
// clock enable on D9
|
||||
let en = gpioc.pc7.into_push_pull_output();
|
||||
// register select on D8, the lib wants that but I'd just put it on ground otherwise
|
||||
let rs = gpioa.pa9.into_push_pull_output();
|
||||
let mut d4: D4PIN = gpiob.pb5.into_push_pull_output();
|
||||
let mut d5: D5PIN = gpiob.pb4.into_push_pull_output();
|
||||
let mut d6: D6PIN = gpiob.pb10.into_push_pull_output();
|
||||
let mut d7: D7PIN = gpioa.pa8.into_push_pull_output();
|
||||
|
||||
// See https://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller#Interface
|
||||
// for the pins of the LCD
|
||||
|
|
@ -47,57 +153,18 @@ fn main() -> ! {
|
|||
let mut delay = cp.SYST.delay(rcc.clocks);
|
||||
|
||||
let mut led = gpioa.pa5.into_push_pull_output();
|
||||
let mut lcd = HD44780::new_4bit(rs, en, d4, d5, d6, d7, &mut delay)
|
||||
.expect("could not init HD44780 driver");
|
||||
lcd.set_display_mode(
|
||||
hd44780_driver::DisplayMode {
|
||||
cursor_visibility: hd44780_driver::Cursor::Invisible,
|
||||
cursor_blink: hd44780_driver::CursorBlink::Off,
|
||||
display: hd44780_driver::Display::On,
|
||||
},
|
||||
&mut delay,
|
||||
)
|
||||
.expect("could not set display properties");
|
||||
lcd.reset(&mut delay).expect("could not reset the lcd");
|
||||
lcd.write_str("Hello world!", &mut delay)
|
||||
.expect("could not write to LCD");
|
||||
|
||||
led.set_high().unwrap();
|
||||
info!("Writing to LCD...");
|
||||
let mut lcd = LCDHardware::new(
|
||||
&mut d4, &mut d5, &mut d6, &mut d7, &mut rs, &mut en, &mut delay,
|
||||
);
|
||||
write!(&mut lcd, "Hello World").expect("could not write to lcd");
|
||||
info!("Done!");
|
||||
led.set_low().unwrap();
|
||||
|
||||
let mut i = 0;
|
||||
let mut buf: String<20> = String::new();
|
||||
loop {
|
||||
led.set_high().unwrap();
|
||||
info!("Writing to LCD...");
|
||||
|
||||
lcd.clear(&mut delay).expect("could not clear the display");
|
||||
|
||||
lcd.set_cursor_pos(0, &mut delay)
|
||||
.expect("could not move cursor to start");
|
||||
lcd.write_str(" Hello world! ", &mut delay)
|
||||
.expect("could not write to LCD");
|
||||
|
||||
lcd.set_cursor_pos(20, &mut delay)
|
||||
.expect("could not move cursor to line 2");
|
||||
|
||||
buf.clear();
|
||||
write!(&mut buf, " Iteration: {i:07} ").expect("could not format text content for display");
|
||||
|
||||
lcd.write_str(&buf, &mut delay)
|
||||
.expect("could not write to LCD");
|
||||
|
||||
lcd.set_cursor_pos(60, &mut delay)
|
||||
.expect("could not move cursor to start");
|
||||
lcd.write_str(" Line 2 ", &mut delay)
|
||||
.expect("could not write to LCD");
|
||||
|
||||
// line 4 is a bit strange and eats the first few spaces
|
||||
lcd.set_cursor_pos(80, &mut delay)
|
||||
.expect("could not move cursor to start");
|
||||
lcd.write_str(" Line 4 ", &mut delay)
|
||||
.expect("could not write to LCD");
|
||||
|
||||
info!("Done!");
|
||||
led.set_low().unwrap();
|
||||
|
||||
delay.delay_ms(500_u16);
|
||||
|
||||
i += 1;
|
||||
|
|
|
|||
|
|
@ -25,24 +25,20 @@ fn main() -> ! {
|
|||
|
||||
let mut delay = cp.SYST.delay(rcc.clocks);
|
||||
|
||||
// Setup the Real-Time-Clock of the Controller.
|
||||
// starts at 0 (2001-01-01 00:00:00) and resets
|
||||
// when the Controller is no longer powered.
|
||||
let mut rtc = Rtc::new(dp.RTC, &mut rcc, &pwr, None).unwrap();
|
||||
let mut rtc = Rtc::new(dp.RTC, &mut rcc, &pwr, None).unwrap(); // starts at time 0
|
||||
|
||||
#[allow(clippy::never_loop)]
|
||||
loop {
|
||||
led.set_high().unwrap(); // light on
|
||||
delay.delay_ms(500_u16); // wait
|
||||
led.set_high().unwrap();
|
||||
delay.delay_ms(500_u16);
|
||||
|
||||
led.set_low().unwrap(); // light off
|
||||
delay.delay_ms(500_u16); // wait
|
||||
led.set_low().unwrap();
|
||||
delay.delay_ms(500_u16);
|
||||
|
||||
// print the current time from the RTC
|
||||
ptime(&mut rtc);
|
||||
}
|
||||
}
|
||||
|
||||
/// prints the time to the "host" computer via RTT
|
||||
fn ptime(rtc: &mut Rtc) {
|
||||
let time: NaiveDateTime = rtc.now();
|
||||
info!(
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue