From 55d0720b44cbdb2061866bf692de42e38e3d23b1 Mon Sep 17 00:00:00 2001 From: Ulf Lilleengen Date: Thu, 11 Dec 2025 12:04:09 +0100 Subject: feat: add support for buffered write mode for rram --- examples/nrf54l15/src/bin/nvmc.rs | 44 --------------------- examples/nrf54l15/src/bin/rramc.rs | 44 +++++++++++++++++++++ examples/nrf54l15/src/bin/rramc_buffered.rs | 59 +++++++++++++++++++++++++++++ 3 files changed, 103 insertions(+), 44 deletions(-) delete mode 100644 examples/nrf54l15/src/bin/nvmc.rs create mode 100644 examples/nrf54l15/src/bin/rramc.rs create mode 100644 examples/nrf54l15/src/bin/rramc_buffered.rs (limited to 'examples') diff --git a/examples/nrf54l15/src/bin/nvmc.rs b/examples/nrf54l15/src/bin/nvmc.rs deleted file mode 100644 index f990604cd..000000000 --- a/examples/nrf54l15/src/bin/nvmc.rs +++ /dev/null @@ -1,44 +0,0 @@ -#![no_std] -#![no_main] - -use defmt::{info, unwrap}; -use embassy_executor::Spawner; -use embassy_nrf::nvmc::{Nvmc, PAGE_SIZE}; -use embedded_storage::nor_flash::{NorFlash, ReadNorFlash}; -use {defmt_rtt as _, panic_probe as _}; - -#[embassy_executor::main] -async fn main(_spawner: Spawner) { - let p = embassy_nrf::init(Default::default()); - info!("Hello RRAMC NVMC!"); - - let mut f = Nvmc::new(p.RRAMC); - - const ADDR: u32 = 0x80000; - let mut buf = [0u8; 4]; - - info!("Reading..."); - unwrap!(f.read(ADDR, &mut buf)); - info!("Read: {=[u8]:x}", buf); - - info!("Erasing..."); - unwrap!(f.erase(ADDR, ADDR + PAGE_SIZE as u32)); - - info!("Reading..."); - unwrap!(f.read(ADDR, &mut buf)); - info!("Read: {=[u8]:x}", buf); - - info!("Writing..."); - // 16 B (128-bit) write minimum - let out: [u8; 16] = [ - 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, - ]; - unwrap!(f.write(ADDR, &out)); - - info!("Reading..."); - // Can read arbitrary sizes - for addr in (ADDR..ADDR + 16).step_by(4) { - unwrap!(f.read(addr, &mut buf)); - info!("Read: {=[u8]:x}", buf); - } -} diff --git a/examples/nrf54l15/src/bin/rramc.rs b/examples/nrf54l15/src/bin/rramc.rs new file mode 100644 index 000000000..f990604cd --- /dev/null +++ b/examples/nrf54l15/src/bin/rramc.rs @@ -0,0 +1,44 @@ +#![no_std] +#![no_main] + +use defmt::{info, unwrap}; +use embassy_executor::Spawner; +use embassy_nrf::nvmc::{Nvmc, PAGE_SIZE}; +use embedded_storage::nor_flash::{NorFlash, ReadNorFlash}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) { + let p = embassy_nrf::init(Default::default()); + info!("Hello RRAMC NVMC!"); + + let mut f = Nvmc::new(p.RRAMC); + + const ADDR: u32 = 0x80000; + let mut buf = [0u8; 4]; + + info!("Reading..."); + unwrap!(f.read(ADDR, &mut buf)); + info!("Read: {=[u8]:x}", buf); + + info!("Erasing..."); + unwrap!(f.erase(ADDR, ADDR + PAGE_SIZE as u32)); + + info!("Reading..."); + unwrap!(f.read(ADDR, &mut buf)); + info!("Read: {=[u8]:x}", buf); + + info!("Writing..."); + // 16 B (128-bit) write minimum + let out: [u8; 16] = [ + 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, + ]; + unwrap!(f.write(ADDR, &out)); + + info!("Reading..."); + // Can read arbitrary sizes + for addr in (ADDR..ADDR + 16).step_by(4) { + unwrap!(f.read(addr, &mut buf)); + info!("Read: {=[u8]:x}", buf); + } +} diff --git a/examples/nrf54l15/src/bin/rramc_buffered.rs b/examples/nrf54l15/src/bin/rramc_buffered.rs new file mode 100644 index 000000000..06c9585ed --- /dev/null +++ b/examples/nrf54l15/src/bin/rramc_buffered.rs @@ -0,0 +1,59 @@ +#![no_std] +#![no_main] + +use defmt::{info, unwrap}; +use embassy_executor::Spawner; +use embassy_nrf::rramc::{Buffered, PAGE_SIZE, Rramc}; +use embedded_storage::nor_flash::{NorFlash, ReadNorFlash}; +use {defmt_rtt as _, panic_probe as _}; + +#[embassy_executor::main] +async fn main(_spawner: Spawner) { + let p = embassy_nrf::init(Default::default()); + info!("Hello RRAMC NVMC!"); + + // Buffer 8 word lines + let mut f: Rramc<'_, Buffered<128>> = Rramc::new_buffered(p.RRAMC); + + const ADDR: u32 = 0x80000; + let mut buf = [0u8; 4]; + + info!("Reading..."); + unwrap!(f.read(ADDR, &mut buf)); + info!("Read: {=[u8]:x}", buf); + + info!("Erasing..."); + unwrap!(f.erase(ADDR, ADDR + PAGE_SIZE as u32)); + + info!("Reading..."); + unwrap!(f.read(ADDR, &mut buf)); + info!("Read: {=[u8]:x}", buf); + + info!("Writing..."); + // 16 B (128-bit) write minimum + let out: [u8; 256] = [ + 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, + 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, + 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, + 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, + 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, + 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, + 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, + 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, + 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, + 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, + 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, + 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, + 0xcc, 0xcc, 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, + 0xcc, 0xcc, 0xdd, 0xdd, 0xdd, 0xdd, 0xaa, 0xaa, 0xaa, 0xaa, 0xbb, 0xbb, 0xbb, 0xbb, 0xcc, 0xcc, 0xcc, 0xcc, + 0xdd, 0xdd, 0xdd, 0xdd, + ]; + unwrap!(f.write(ADDR, &out)); + + info!("Reading..."); + // Can read arbitrary sizes + for addr in (ADDR..ADDR + 256).step_by(4) { + unwrap!(f.read(addr, &mut buf)); + info!("Read: {=[u8]:x}", buf); + } +} -- cgit