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rust: weather: Show UART1 info at start

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This commit is contained in:
Wladimir J. van der Laan 2020-02-16 14:53:53 +00:00
parent 34761dc4b6
commit 0636964b39
1 changed files with 42 additions and 1 deletions
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43
rust/weather/src/main.rs
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@ -8,7 +8,7 @@ use core::str;
use esp8266at::handler::{NetworkEvent, SerialNetworkHandler};
use esp8266at::response::{parse, ConnectionType, ParseResult};
use esp8266at::traits::{self, Write};
use k210_hal::Peripherals;
use k210_hal::{Peripherals, pac};
use k210_hal::prelude::*;
use k210_hal::stdout::Stdout;
use k210_shared::board::def::io;
@ -65,6 +65,45 @@ fn io_init() {
sysctl::set_power_mode(sysctl::power_bank::BANK7, sysctl::io_power_mode::V18);
}
/** Show some information about Designware UART. */
fn show_uart_info(debug: &mut dyn core::fmt::Write, uart: *const pac::uart1::RegisterBlock) {
let cpr = unsafe { (*uart).cpr.read() }.bits();
let ucv = unsafe { (*uart).ucv.read() }.bits();
let ctr = unsafe { (*uart).ctr.read() }.bits();
writeln!(debug, "UART1: Designware UART version {}.{}.{}",
char::from((ucv >> 24) as u8),
char::from(((ucv >> 16) & 0xff) as u8),
char::from(((ucv >> 8) & 0xff) as u8),
).unwrap();
write!(debug, "UART1: Features").unwrap();
write!(debug, " APB {} bits", match cpr & 3 {
0 => 8,
1 => 16,
2 => 32,
_ => 0,
}).unwrap();
let flags = [
(4, "AFCE"),
(5, "THRE"),
(6, "SIR"),
(7, "SIR_LP"),
(8, "ADDITIONAL_FEAT"),
(9, "FIFO_ACCESS"),
(10, "FIFO_STAT"),
(11, "SHADOW"),
(12, "UART_ADD_ENCODED_PARAMS"),
(13, "DMA_EXTRA"),
];
for (bit, name) in &flags {
if (cpr & (1u32 << bit)) != 0u32 {
write!(debug, " {}", name).unwrap();
}
}
write!(debug, " UART {} bytes", ((cpr >> 16) & 0xff) * 16).unwrap();
writeln!(debug).unwrap();
writeln!(debug, "UART1: CTR {:08x}", ctr).unwrap();
}
#[entry]
fn main() -> ! {
let p = Peripherals::take().unwrap();
@ -95,6 +134,8 @@ fn main() -> ! {
let mut wa = WriteAdapter::new();
let mut sh = SerialNetworkHandler::new(&mut wa, config::APNAME.as_bytes(), config::APPASS.as_bytes());
show_uart_info(&mut debug, pac::UART1::ptr());
// LCD init
let dmac = p.DMAC.configure();
let spi = p.SPI0.constrain();