From 55a5e9b3a51b537b7de80221d501be423af43303 Mon Sep 17 00:00:00 2001 From: Henrik Berg Date: Thu, 22 Jun 2023 22:37:24 +0200 Subject: RP: Add RTC example to rp2040. --- examples/rp/src/bin/rtc.rs | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 examples/rp/src/bin/rtc.rs (limited to 'examples/rp/src') diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs new file mode 100644 index 000000000..a49c8f627 --- /dev/null +++ b/examples/rp/src/bin/rtc.rs @@ -0,0 +1,33 @@ +#![no_std] +#![no_main] +#![feature(type_alias_impl_trait)] + +use defmt::*; +use embassy_executor::Spawner; +use embassy_rp::rtc::{DateTime, DayOfWeek, RealTimeClock}; +use embassy_time::{Duration, Timer}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) { + let p = embassy_rp::init(Default::default()); + info!("Hello World!"); + + let now = DateTime { + year: 2020, + month: 5, + day: 15, + day_of_week: DayOfWeek::Monday, + hour: 10, + minute: 30, + second: 50, + }; + + let rtc_result = RealTimeClock::new(p.RTC, now); + if let Ok(rtc) = rtc_result { + // In reality the delay would be much longer + Timer::after(Duration::from_millis(20000)).await; + + let _then: DateTime = rtc.now().unwrap(); + } +} -- cgit From a93714327eb85b02c7c4a419f2a76df579258975 Mon Sep 17 00:00:00 2001 From: Henrik Berg Date: Tue, 11 Jul 2023 18:41:45 +0200 Subject: RP: Rename Rtc to match STM32 impl. Remove setting RTC in new(). --- examples/rp/src/bin/rtc.rs | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'examples/rp/src') diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs index a49c8f627..6300950d4 100644 --- a/examples/rp/src/bin/rtc.rs +++ b/examples/rp/src/bin/rtc.rs @@ -4,7 +4,7 @@ use defmt::*; use embassy_executor::Spawner; -use embassy_rp::rtc::{DateTime, DayOfWeek, RealTimeClock}; +use embassy_rp::rtc::{DateTime, DayOfWeek, Rtc}; use embassy_time::{Duration, Timer}; use {defmt_rtt as _, panic_probe as _}; @@ -23,11 +23,17 @@ async fn main(_spawner: Spawner) { second: 50, }; - let rtc_result = RealTimeClock::new(p.RTC, now); - if let Ok(rtc) = rtc_result { + let mut rtc = Rtc::new(p.RTC); + if rtc.set_datetime(now).is_ok() { // In reality the delay would be much longer Timer::after(Duration::from_millis(20000)).await; - let _then: DateTime = rtc.now().unwrap(); + if let Ok(dt) = rtc.now() { + info!( + "Now: {}-{}-{} {}:{}:{}", + dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, + ); + } } + info!("Done."); } -- cgit From 466a391b52836f79fafad5780ad2eb0a07d82513 Mon Sep 17 00:00:00 2001 From: Henrik Berg Date: Wed, 12 Jul 2023 14:13:19 +0200 Subject: RP: Add save/restore to Rtc. Example use. --- examples/rp/src/bin/rtc.rs | 55 ++++++++++++++++++++++++++++------------------ 1 file changed, 34 insertions(+), 21 deletions(-) (limited to 'examples/rp/src') diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs index 6300950d4..2ddde3257 100644 --- a/examples/rp/src/bin/rtc.rs +++ b/examples/rp/src/bin/rtc.rs @@ -4,6 +4,7 @@ use defmt::*; use embassy_executor::Spawner; +use embassy_rp::pac::rtc::regs::{Rtc0, Rtc1}; use embassy_rp::rtc::{DateTime, DayOfWeek, Rtc}; use embassy_time::{Duration, Timer}; use {defmt_rtt as _, panic_probe as _}; @@ -11,29 +12,41 @@ use {defmt_rtt as _, panic_probe as _}; #[embassy_executor::main] async fn main(_spawner: Spawner) { let p = embassy_rp::init(Default::default()); - info!("Hello World!"); - - let now = DateTime { - year: 2020, - month: 5, - day: 15, - day_of_week: DayOfWeek::Monday, - hour: 10, - minute: 30, - second: 50, - }; + info!("Wait for 20s"); + let mut watchdog = embassy_rp::watchdog::Watchdog::new(p.WATCHDOG); let mut rtc = Rtc::new(p.RTC); - if rtc.set_datetime(now).is_ok() { - // In reality the delay would be much longer - Timer::after(Duration::from_millis(20000)).await; - if let Ok(dt) = rtc.now() { - info!( - "Now: {}-{}-{} {}:{}:{}", - dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, - ); - } + let rtc0 = Rtc0(watchdog.get_scratch0()); + let rtc1 = Rtc1(watchdog.get_scratch1()); + if rtc1.year() >= 2020 { + rtc.restore(rtc1, rtc0); + } else { + let now = DateTime { + year: 2020, + month: 5, + day: 15, + day_of_week: DayOfWeek::Monday, + hour: 10, + minute: 30, + second: 50, + }; + rtc.set_datetime(now).unwrap(); } - info!("Done."); + + Timer::after(Duration::from_millis(20000)).await; + + if let Ok(dt) = rtc.now() { + info!( + "Now: {}-{:02}-{:02} {}:{:02}:{:02}", + dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, + ); + let (rtc1, rtc0) = rtc.save(); + watchdog.set_scratch0(rtc0.0); + watchdog.set_scratch1(rtc1.0); + } + + info!("Reboot."); + Timer::after(Duration::from_millis(200)).await; + cortex_m::peripheral::SCB::sys_reset(); } -- cgit From 6d402fe3932ac04ff939379e6520322476f683dc Mon Sep 17 00:00:00 2001 From: Henrik Berg Date: Wed, 12 Jul 2023 15:16:56 +0200 Subject: RP: Don't reset RTC in Clock::init. Updated example. --- examples/rp/src/bin/rtc.rs | 26 +++++++++----------------- 1 file changed, 9 insertions(+), 17 deletions(-) (limited to 'examples/rp/src') diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs index 2ddde3257..d569f598f 100644 --- a/examples/rp/src/bin/rtc.rs +++ b/examples/rp/src/bin/rtc.rs @@ -4,7 +4,6 @@ use defmt::*; use embassy_executor::Spawner; -use embassy_rp::pac::rtc::regs::{Rtc0, Rtc1}; use embassy_rp::rtc::{DateTime, DayOfWeek, Rtc}; use embassy_time::{Duration, Timer}; use {defmt_rtt as _, panic_probe as _}; @@ -14,22 +13,18 @@ async fn main(_spawner: Spawner) { let p = embassy_rp::init(Default::default()); info!("Wait for 20s"); - let mut watchdog = embassy_rp::watchdog::Watchdog::new(p.WATCHDOG); let mut rtc = Rtc::new(p.RTC); - let rtc0 = Rtc0(watchdog.get_scratch0()); - let rtc1 = Rtc1(watchdog.get_scratch1()); - if rtc1.year() >= 2020 { - rtc.restore(rtc1, rtc0); - } else { + if !rtc.is_running() { + info!("Start RTC"); let now = DateTime { - year: 2020, - month: 5, - day: 15, - day_of_week: DayOfWeek::Monday, - hour: 10, - minute: 30, - second: 50, + year: 2000, + month: 1, + day: 1, + day_of_week: DayOfWeek::Saturday, + hour: 0, + minute: 0, + second: 0, }; rtc.set_datetime(now).unwrap(); } @@ -41,9 +36,6 @@ async fn main(_spawner: Spawner) { "Now: {}-{:02}-{:02} {}:{:02}:{:02}", dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, ); - let (rtc1, rtc0) = rtc.save(); - watchdog.set_scratch0(rtc0.0); - watchdog.set_scratch1(rtc1.0); } info!("Reboot."); -- cgit From 588c0479f5dacd21e8654463eb3ca3d847d5dcd9 Mon Sep 17 00:00:00 2001 From: Henrik Berg Date: Thu, 13 Jul 2023 11:16:11 +0200 Subject: Add descriptions to all RP2040 examples. Some need hardware that was not specified. --- examples/rp/src/bin/adc.rs | 5 ++++- examples/rp/src/bin/blinky.rs | 4 ++++ examples/rp/src/bin/button.rs | 4 ++++ examples/rp/src/bin/flash.rs | 2 ++ examples/rp/src/bin/gpio_async.rs | 6 ++++-- examples/rp/src/bin/gpout.rs | 4 ++++ examples/rp/src/bin/i2c_async.rs | 5 +++++ examples/rp/src/bin/i2c_blocking.rs | 5 +++++ examples/rp/src/bin/lora_lorawan.rs | 1 + examples/rp/src/bin/lora_p2p_receive.rs | 1 + examples/rp/src/bin/lora_p2p_send.rs | 1 + examples/rp/src/bin/lora_p2p_send_multicore.rs | 1 + examples/rp/src/bin/multicore.rs | 4 ++++ examples/rp/src/bin/pio_async.rs | 11 ++++++++++- examples/rp/src/bin/pio_dma.rs | 2 ++ examples/rp/src/bin/pio_hd44780.rs | 3 +++ examples/rp/src/bin/pio_ws2812.rs | 3 +++ examples/rp/src/bin/pwm.rs | 4 ++++ examples/rp/src/bin/rtc.rs | 2 ++ examples/rp/src/bin/spi.rs | 4 ++++ examples/rp/src/bin/spi_async.rs | 3 +++ examples/rp/src/bin/spi_display.rs | 5 +++++ examples/rp/src/bin/uart.rs | 6 ++++++ examples/rp/src/bin/uart_buffered_split.rs | 6 ++++++ examples/rp/src/bin/uart_unidir.rs | 6 +++++- examples/rp/src/bin/usb_ethernet.rs | 4 ++++ examples/rp/src/bin/usb_logger.rs | 4 ++++ examples/rp/src/bin/usb_serial.rs | 4 ++++ examples/rp/src/bin/watchdog.rs | 4 ++++ examples/rp/src/bin/wifi_ap_tcp_server.rs | 3 +++ examples/rp/src/bin/wifi_blinky.rs | 4 ++++ examples/rp/src/bin/wifi_scan.rs | 3 +++ examples/rp/src/bin/wifi_tcp_server.rs | 3 +++ 33 files changed, 122 insertions(+), 5 deletions(-) (limited to 'examples/rp/src') diff --git a/examples/rp/src/bin/adc.rs b/examples/rp/src/bin/adc.rs index 65069cde1..c0cbe0172 100644 --- a/examples/rp/src/bin/adc.rs +++ b/examples/rp/src/bin/adc.rs @@ -1,3 +1,6 @@ +//! This example test the ADC (Analog to Digital Conversion) of the RS2040 pin 26, 27 and 28. +//! It also reads the temperature sensor in the chip. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] @@ -38,5 +41,5 @@ async fn main(_spawner: Spawner) { fn convert_to_celsius(raw_temp: u16) -> f32 { // According to chapter 4.9.5. Temperature Sensor in RP2040 datasheet - 27.0 - (raw_temp as f32 * 3.3 / 4096.0 - 0.706) / 0.001721 as f32 + 27.0 - (raw_temp as f32 * 3.3 / 4096.0 - 0.706) / 0.001721 } diff --git a/examples/rp/src/bin/blinky.rs b/examples/rp/src/bin/blinky.rs index 7aa36a19f..295b000f3 100644 --- a/examples/rp/src/bin/blinky.rs +++ b/examples/rp/src/bin/blinky.rs @@ -1,3 +1,7 @@ +//! This example test the RP Pico on board LED. +//! +//! It does not work with the RP Pico W board. See wifi_blinky.rs. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/button.rs b/examples/rp/src/bin/button.rs index 0d246c093..d7aa89410 100644 --- a/examples/rp/src/bin/button.rs +++ b/examples/rp/src/bin/button.rs @@ -1,3 +1,7 @@ +//! This example uses the RP Pico on board LED to test input pin 28. This is not the button on the board. +//! +//! It does not work with the RP Pico W board. Use wifi_blinky.rs and add input pin. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/flash.rs b/examples/rp/src/bin/flash.rs index 19076150c..4c4982acc 100644 --- a/examples/rp/src/bin/flash.rs +++ b/examples/rp/src/bin/flash.rs @@ -1,3 +1,5 @@ +//! This example test the flash connected to the RP2040 chip. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/gpio_async.rs b/examples/rp/src/bin/gpio_async.rs index 52d13a9d5..bf58044d5 100644 --- a/examples/rp/src/bin/gpio_async.rs +++ b/examples/rp/src/bin/gpio_async.rs @@ -1,3 +1,7 @@ +//! This example shows how async gpio can be used with a RP2040. +//! +//! The LED on the RP Pico W board is connected differently. See wifi_blinky.rs. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] @@ -9,8 +13,6 @@ use embassy_time::{Duration, Timer}; use gpio::{Input, Level, Output, Pull}; use {defmt_rtt as _, panic_probe as _}; -/// This example shows how async gpio can be used with a RP2040. -/// /// It requires an external signal to be manually triggered on PIN 16. For /// example, this could be accomplished using an external power source with a /// button so that it is possible to toggle the signal from low to high. diff --git a/examples/rp/src/bin/gpout.rs b/examples/rp/src/bin/gpout.rs index 64461fc5f..0a3b5fa98 100644 --- a/examples/rp/src/bin/gpout.rs +++ b/examples/rp/src/bin/gpout.rs @@ -1,3 +1,7 @@ +//! This example shows how GPOUT (General purpose clock outputs) can toggle a output pin. +//! +//! The LED on the RP Pico W board is connected differently. Add a LED and resistor to another pin. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/i2c_async.rs b/examples/rp/src/bin/i2c_async.rs index cf3cf742c..93224bc43 100644 --- a/examples/rp/src/bin/i2c_async.rs +++ b/examples/rp/src/bin/i2c_async.rs @@ -1,3 +1,8 @@ +//! This example shows how to communicate asynchronous using i2c with external chips. +//! +//! Example written for the [`MCP23017 16-Bit I2C I/O Expander with Serial Interface`] chip. +//! (https://www.microchip.com/en-us/product/mcp23017) + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/i2c_blocking.rs b/examples/rp/src/bin/i2c_blocking.rs index 7623e33c8..1c8c2039d 100644 --- a/examples/rp/src/bin/i2c_blocking.rs +++ b/examples/rp/src/bin/i2c_blocking.rs @@ -1,3 +1,8 @@ +//! This example shows how to communicate using i2c with external chips. +//! +//! Example written for the [`MCP23017 16-Bit I2C I/O Expander with Serial Interface`] chip. +//! (https://www.microchip.com/en-us/product/mcp23017) + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/lora_lorawan.rs b/examples/rp/src/bin/lora_lorawan.rs index a9c84bf95..d631fafa1 100644 --- a/examples/rp/src/bin/lora_lorawan.rs +++ b/examples/rp/src/bin/lora_lorawan.rs @@ -1,5 +1,6 @@ //! This example runs on the Raspberry Pi Pico with a Waveshare board containing a Semtech Sx1262 radio. //! It demonstrates LoRaWAN join functionality. + #![no_std] #![no_main] #![macro_use] diff --git a/examples/rp/src/bin/lora_p2p_receive.rs b/examples/rp/src/bin/lora_p2p_receive.rs index 250419202..396d669de 100644 --- a/examples/rp/src/bin/lora_p2p_receive.rs +++ b/examples/rp/src/bin/lora_p2p_receive.rs @@ -1,5 +1,6 @@ //! This example runs on the Raspberry Pi Pico with a Waveshare board containing a Semtech Sx1262 radio. //! It demonstrates LORA P2P receive functionality in conjunction with the lora_p2p_send example. + #![no_std] #![no_main] #![macro_use] diff --git a/examples/rp/src/bin/lora_p2p_send.rs b/examples/rp/src/bin/lora_p2p_send.rs index 3a0544b17..a0f70fa5c 100644 --- a/examples/rp/src/bin/lora_p2p_send.rs +++ b/examples/rp/src/bin/lora_p2p_send.rs @@ -1,5 +1,6 @@ //! This example runs on the Raspberry Pi Pico with a Waveshare board containing a Semtech Sx1262 radio. //! It demonstrates LORA P2P send functionality. + #![no_std] #![no_main] #![macro_use] diff --git a/examples/rp/src/bin/lora_p2p_send_multicore.rs b/examples/rp/src/bin/lora_p2p_send_multicore.rs index eef2f7a53..89a62818d 100644 --- a/examples/rp/src/bin/lora_p2p_send_multicore.rs +++ b/examples/rp/src/bin/lora_p2p_send_multicore.rs @@ -1,5 +1,6 @@ //! This example runs on the Raspberry Pi Pico with a Waveshare board containing a Semtech Sx1262 radio. //! It demonstrates LORA P2P send functionality using the second core, with data provided by the first core. + #![no_std] #![no_main] #![macro_use] diff --git a/examples/rp/src/bin/multicore.rs b/examples/rp/src/bin/multicore.rs index 57278dd6c..893b724bf 100644 --- a/examples/rp/src/bin/multicore.rs +++ b/examples/rp/src/bin/multicore.rs @@ -1,3 +1,7 @@ +//! This example shows how to send messages between the two cores in the RP2040 chip. +//! +//! The LED on the RP Pico W board is connected differently. See wifi_blinky.rs. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/pio_async.rs b/examples/rp/src/bin/pio_async.rs index 69034c92a..c001d6440 100644 --- a/examples/rp/src/bin/pio_async.rs +++ b/examples/rp/src/bin/pio_async.rs @@ -1,3 +1,5 @@ +//! This example shows powerful PIO module in the RP2040 chip. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] @@ -54,7 +56,14 @@ fn setup_pio_task_sm1<'a>(pio: &mut Common<'a, PIO0>, sm: &mut StateMachine<'a, // Setupm sm1 // Read 0b10101 repeatedly until ISR is full - let prg = pio_proc::pio_asm!(".origin 8", "set x, 0x15", ".wrap_target", "in x, 5 [31]", ".wrap",); + let prg = pio_proc::pio_asm!( + // + ".origin 8", + "set x, 0x15", + ".wrap_target", + "in x, 5 [31]", + ".wrap", + ); let relocated = RelocatedProgram::new(&prg.program); let mut cfg = Config::default(); diff --git a/examples/rp/src/bin/pio_dma.rs b/examples/rp/src/bin/pio_dma.rs index 80c963556..9ab72e1f3 100644 --- a/examples/rp/src/bin/pio_dma.rs +++ b/examples/rp/src/bin/pio_dma.rs @@ -1,3 +1,5 @@ +//! This example shows powerful PIO module in the RP2040 chip. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/pio_hd44780.rs b/examples/rp/src/bin/pio_hd44780.rs index 0a4514a66..8aedd24b6 100644 --- a/examples/rp/src/bin/pio_hd44780.rs +++ b/examples/rp/src/bin/pio_hd44780.rs @@ -1,3 +1,6 @@ +//! This example shows powerful PIO module in the RP2040 chip to communicate with a HD44780 display. +//! See (https://www.sparkfun.com/datasheets/LCD/HD44780.pdf) + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/pio_ws2812.rs b/examples/rp/src/bin/pio_ws2812.rs index 4a111e7aa..3de2bd48d 100644 --- a/examples/rp/src/bin/pio_ws2812.rs +++ b/examples/rp/src/bin/pio_ws2812.rs @@ -1,3 +1,6 @@ +//! This example shows powerful PIO module in the RP2040 chip to communicate with WS2812 LED modules. +//! See (https://www.sparkfun.com/categories/tags/ws2812) + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/pwm.rs b/examples/rp/src/bin/pwm.rs index 2b3d5d97a..9d919287c 100644 --- a/examples/rp/src/bin/pwm.rs +++ b/examples/rp/src/bin/pwm.rs @@ -1,3 +1,7 @@ +//! This example shows how to use PWM (Pulse Width Modulation) in the RP2040 chip. +//! +//! The LED on the RP Pico W board is connected differently. Add a LED and resistor to another pin. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs index d569f598f..15aa8243f 100644 --- a/examples/rp/src/bin/rtc.rs +++ b/examples/rp/src/bin/rtc.rs @@ -1,3 +1,5 @@ +//! This example shows how to use RTC (Real Time Clock) in the RP2040 chip. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/spi.rs b/examples/rp/src/bin/spi.rs index a830a17a2..602348f7a 100644 --- a/examples/rp/src/bin/spi.rs +++ b/examples/rp/src/bin/spi.rs @@ -1,3 +1,7 @@ +//! This example shows how to use SPI (Serial Peripheral Interface) in the RP2040 chip. +//! +//! Example for resistive touch sensor in Waveshare Pico-ResTouch + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/spi_async.rs b/examples/rp/src/bin/spi_async.rs index 671a9caaf..328074e8b 100644 --- a/examples/rp/src/bin/spi_async.rs +++ b/examples/rp/src/bin/spi_async.rs @@ -1,3 +1,6 @@ +//! This example shows how to use SPI (Serial Peripheral Interface) in the RP2040 chip. +//! No specific hardware is specified in this example. If you connect pin 11 and 12 you should get the same data back. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/spi_display.rs b/examples/rp/src/bin/spi_display.rs index 2fd201595..26c258e1c 100644 --- a/examples/rp/src/bin/spi_display.rs +++ b/examples/rp/src/bin/spi_display.rs @@ -1,3 +1,8 @@ +//! This example shows how to use SPI (Serial Peripheral Interface) in the RP2040 chip. +//! +//! Example written for a display using the ST7789 chip. Possibly the Waveshare Pico-ResTouch +//! (https://www.waveshare.com/wiki/Pico-ResTouch-LCD-2.8) + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/uart.rs b/examples/rp/src/bin/uart.rs index 05177a6b4..451c3c396 100644 --- a/examples/rp/src/bin/uart.rs +++ b/examples/rp/src/bin/uart.rs @@ -1,3 +1,9 @@ +//! This example shows how to use UART (Universal asynchronous receiver-transmitter) in the RP2040 chip. +//! +//! No specific hardware is specified in this example. Only output on pin 0 is tested. +//! The Raspberry Pi Debug Probe (https://www.raspberrypi.com/products/debug-probe/) could be used +//! with its UART port. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/uart_buffered_split.rs b/examples/rp/src/bin/uart_buffered_split.rs index 9df99bd58..735201718 100644 --- a/examples/rp/src/bin/uart_buffered_split.rs +++ b/examples/rp/src/bin/uart_buffered_split.rs @@ -1,3 +1,9 @@ +//! This example shows how to use UART (Universal asynchronous receiver-transmitter) in the RP2040 chip. +//! +//! No specific hardware is specified in this example. If you connect pin 0 and 1 you should get the same data back. +//! The Raspberry Pi Debug Probe (https://www.raspberrypi.com/products/debug-probe/) could be used +//! with its UART port. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/uart_unidir.rs b/examples/rp/src/bin/uart_unidir.rs index c0943a1b8..c1515a911 100644 --- a/examples/rp/src/bin/uart_unidir.rs +++ b/examples/rp/src/bin/uart_unidir.rs @@ -1,5 +1,9 @@ -//! test TX-only and RX-only UARTs. You need to connect GPIO0 to GPIO5 for +//! This example shows how to use UART (Universal asynchronous receiver-transmitter) in the RP2040 chip. +//! +//! Test TX-only and RX-only on two different UARTs. You need to connect GPIO0 to GPIO5 for //! this to work +//! The Raspberry Pi Debug Probe (https://www.raspberrypi.com/products/debug-probe/) could be used +//! with its UART port. #![no_std] #![no_main] diff --git a/examples/rp/src/bin/usb_ethernet.rs b/examples/rp/src/bin/usb_ethernet.rs index 91d1ec8e7..0a08f667e 100644 --- a/examples/rp/src/bin/usb_ethernet.rs +++ b/examples/rp/src/bin/usb_ethernet.rs @@ -1,3 +1,7 @@ +//! This example shows how to use USB (Universal Serial Bus) in the RP2040 chip. +//! +//! This is a CDC-NCM class implementation, aka Ethernet over USB. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/usb_logger.rs b/examples/rp/src/bin/usb_logger.rs index 7c90d0ca3..9c5e6897d 100644 --- a/examples/rp/src/bin/usb_logger.rs +++ b/examples/rp/src/bin/usb_logger.rs @@ -1,3 +1,7 @@ +//! This example shows how to use USB (Universal Serial Bus) in the RP2040 chip. +//! +//! This creates the possibility to send log::info/warn/error/debug! to USB serial port. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/usb_serial.rs b/examples/rp/src/bin/usb_serial.rs index ca728536c..164e2052d 100644 --- a/examples/rp/src/bin/usb_serial.rs +++ b/examples/rp/src/bin/usb_serial.rs @@ -1,3 +1,7 @@ +//! This example shows how to use USB (Universal Serial Bus) in the RP2040 chip. +//! +//! This creates a USB serial port that echos. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/watchdog.rs b/examples/rp/src/bin/watchdog.rs index ece5cfe38..fe5eaf926 100644 --- a/examples/rp/src/bin/watchdog.rs +++ b/examples/rp/src/bin/watchdog.rs @@ -1,3 +1,7 @@ +//! This example shows how to use Watchdog in the RP2040 chip. +//! +//! It does not work with the RP Pico W board. See wifi_blinky.rs or connect external LED and resistor. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/wifi_ap_tcp_server.rs b/examples/rp/src/bin/wifi_ap_tcp_server.rs index 3e41f83be..e3e393445 100644 --- a/examples/rp/src/bin/wifi_ap_tcp_server.rs +++ b/examples/rp/src/bin/wifi_ap_tcp_server.rs @@ -1,3 +1,6 @@ +//! This example uses the RP Pico W board Wifi chip (cyw43). +//! Creates an Access point Wifi network and creates a TCP endpoint on port 1234. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/wifi_blinky.rs b/examples/rp/src/bin/wifi_blinky.rs index 6eb207af6..33d43788c 100644 --- a/examples/rp/src/bin/wifi_blinky.rs +++ b/examples/rp/src/bin/wifi_blinky.rs @@ -1,3 +1,7 @@ +//! This example test the RP Pico W on board LED. +//! +//! It does not work with the RP Pico board. See blinky.rs. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/wifi_scan.rs b/examples/rp/src/bin/wifi_scan.rs index aef18aa24..743fab617 100644 --- a/examples/rp/src/bin/wifi_scan.rs +++ b/examples/rp/src/bin/wifi_scan.rs @@ -1,3 +1,6 @@ +//! This example uses the RP Pico W board Wifi chip (cyw43). +//! Scans Wifi for ssid names. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] diff --git a/examples/rp/src/bin/wifi_tcp_server.rs b/examples/rp/src/bin/wifi_tcp_server.rs index 4fce74a66..0223a3636 100644 --- a/examples/rp/src/bin/wifi_tcp_server.rs +++ b/examples/rp/src/bin/wifi_tcp_server.rs @@ -1,3 +1,6 @@ +//! This example uses the RP Pico W board Wifi chip (cyw43). +//! Connects to specified Wifi network and creates a TCP endpoint on port 1234. + #![no_std] #![no_main] #![feature(type_alias_impl_trait)] -- cgit From 56ca1794759a21d9d5397e5bd4aa8226f6ef9385 Mon Sep 17 00:00:00 2001 From: Henrik Berg Date: Thu, 13 Jul 2023 22:47:03 +0200 Subject: Round temp to make more sense. --- examples/rp/src/bin/adc.rs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'examples/rp/src') diff --git a/examples/rp/src/bin/adc.rs b/examples/rp/src/bin/adc.rs index c0cbe0172..81a8b8340 100644 --- a/examples/rp/src/bin/adc.rs +++ b/examples/rp/src/bin/adc.rs @@ -41,5 +41,8 @@ async fn main(_spawner: Spawner) { fn convert_to_celsius(raw_temp: u16) -> f32 { // According to chapter 4.9.5. Temperature Sensor in RP2040 datasheet - 27.0 - (raw_temp as f32 * 3.3 / 4096.0 - 0.706) / 0.001721 + let temp = 27.0 - (raw_temp as f32 * 3.3 / 4096.0 - 0.706) / 0.001721; + let sign = if temp < 0.0 { -1.0 } else { 1.0 }; + let rounded_temp_x10: i16 = ((temp * 10.0) + 0.5 * sign) as i16; + (rounded_temp_x10 as f32) / 10.0 } -- cgit