d86300f799
* Update the `GDMA` driver to support the ESP32-H2 * Update the `SPI` driver to support the ESP32-H2 * Add `SPI` examples for ESP32-H2 * Update CHANGELOG * Remove copy-pasted references to ESP32-C6 * Update GPIO pins used in SPI examples, add `qspi_flash` example * Update SPI clock configuration to produce correct clock rate * Correct comment regarding clock source frequency Co-authored-by: Sergio Gasquez Arcos <sergio.gasquez@gmail.com> * H2: Add PLL_48M_CLK src to ClockControl and RawClocks * H2: Use PLL_48M_CLK as SPI clk src * H2: cleanup commented block in SPI driver * H2: update docs comment in embassy_spi example * fmt * Add a new line in embassy_spi example --------- Co-authored-by: Sergio Gasquez Arcos <sergio.gasquez@gmail.com> Co-authored-by: Juraj Sadel <juraj.sadel@espressif.com>
125 lines
3.2 KiB
Rust
125 lines
3.2 KiB
Rust
//! SPI read manufacturer id from flash chip
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//!
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//! Folowing pins are used:
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//! SCLK GPIO1
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//! MISOI/IO0 GPIO2
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//! MOSI/IO1 GPIO3
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//! IO2 GPIO4
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//! IO3 GPIO5
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//! CS GPIO11
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//!
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//! Depending on your target and the board you are using you have to change the
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//! pins.
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//!
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//! Connect a flash chip (GD25Q64C was used) and make sure QE in the status
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//! register is set.
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#![no_std]
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#![no_main]
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use esp32h2_hal::{
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clock::ClockControl,
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gpio::IO,
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peripherals::Peripherals,
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prelude::*,
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spi::{Address, Command, HalfDuplexReadWrite, Spi, SpiDataMode, SpiMode},
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timer::TimerGroup,
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Delay,
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Rtc,
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};
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use esp_backtrace as _;
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use esp_println::println;
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take();
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let mut system = peripherals.PCR.split();
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let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
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// Disable the watchdog timers. For the ESP32-H2, this includes the Super WDT,
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// the RTC WDT, and the TIMG WDTs.
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let mut rtc = Rtc::new(peripherals.LP_CLKRST);
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let timer_group0 = TimerGroup::new(
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peripherals.TIMG0,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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let mut wdt0 = timer_group0.wdt;
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let timer_group1 = TimerGroup::new(
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peripherals.TIMG1,
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&clocks,
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&mut system.peripheral_clock_control,
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);
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let mut wdt1 = timer_group1.wdt;
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rtc.swd.disable();
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rtc.rwdt.disable();
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wdt0.disable();
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wdt1.disable();
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let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
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let sclk = io.pins.gpio1;
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let miso = io.pins.gpio2;
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let mosi = io.pins.gpio3;
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let sio2 = io.pins.gpio4;
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let sio3 = io.pins.gpio5;
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let cs = io.pins.gpio11;
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let mut spi = Spi::new_half_duplex(
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peripherals.SPI2,
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Some(sclk),
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Some(mosi),
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Some(miso),
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Some(sio2),
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Some(sio3),
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Some(cs),
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100u32.kHz(),
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SpiMode::Mode0,
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&mut system.peripheral_clock_control,
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&clocks,
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);
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let mut delay = Delay::new(&clocks);
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loop {
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// READ MANUFACTURER ID FROM FLASH CHIP
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let mut data = [0u8; 2];
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spi.read(
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SpiDataMode::Single,
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Command::Command8(0x90, SpiDataMode::Single),
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Address::Address24(0x000000, SpiDataMode::Single),
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0,
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&mut data,
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)
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.unwrap();
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println!("Single {:x?}", data);
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delay.delay_ms(250u32);
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// READ MANUFACTURER ID FROM FLASH CHIP
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let mut data = [0u8; 2];
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spi.read(
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SpiDataMode::Dual,
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Command::Command8(0x92, SpiDataMode::Single),
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Address::Address32(0x000000_00, SpiDataMode::Dual),
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0,
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&mut data,
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)
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.unwrap();
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println!("Dual {:x?}", data);
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delay.delay_ms(250u32);
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// READ MANUFACTURER ID FROM FLASH CHIP
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let mut data = [0u8; 2];
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spi.read(
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SpiDataMode::Quad,
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Command::Command8(0x94, SpiDataMode::Single),
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Address::Address32(0x000000_00, SpiDataMode::Quad),
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4,
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&mut data,
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)
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.unwrap();
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println!("Quad {:x?}", data);
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delay.delay_ms(1500u32);
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}
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}
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