feat/efc: add API for read/erase/write flash

CHANGELOG.md

@@ -7,6 +7,7 @@
 - [Integration](https://crates.io/crates/mcan-core) with the
 [`mcan`](https://crates.io/crates/mcan) crate.
 - Implementation of blocking::i2c::Transactional trait from [embedded-hal](https://crates.io/crates/embedded-hal) for TWI device.
+- Implementation of ReadNorFlash and NorFlash traits from [embedded-storage](https://crates.io/crates/embedded-storage) for EFC.
 
 ### Changed
 

boards/atsame70_xpro/Cargo.toml

@@ -15,6 +15,7 @@ panic-rtt-target = { version = "0.1.2", features = ["cortex-m"] }
 rtt-target = { version = "0.3.1", features = ["cortex-m"] }
 usbd-serial = "0.1.1"
 heapless = "0.7"
+embedded-storage = "0.3"
 
 [dependencies.atsamx7x-hal]
 version = "0.4.2"

boards/atsame70_xpro/examples/efc.rs

@@ -0,0 +1,64 @@
+//! Test that system io pins behave as expected
+#![no_std]
+#![no_main]
+
+use panic_rtt_target as _;
+
+#[rtic::app(device = hal::pac, peripherals = true, dispatchers = [UART0])]
+mod app {
+    use atsamx7x_hal as hal;
+    use embedded_storage::nor_flash::NorFlash;
+    use embedded_storage::nor_flash::ReadNorFlash;
+    use hal::efc::*;
+    use rtt_target::{rprintln, rtt_init_print};
+
+    #[shared]
+    struct Shared {}
+
+    #[local]
+    struct Local {}
+
+    #[init]
+    fn init(ctx: init::Context) -> (Shared, Local, init::Monotonics) {
+        rtt_init_print!();
+        let efc = ctx.device.EFC;
+        rprintln!("0x{:x}", efc.eefc_fsr.read().bits());
+        rprintln!("0x{:x}", efc.eefc_fmr.read().bits());
+        let mut efc = Efc::new(efc, VddioLevel::V3);
+        let wdt = ctx.device.WDT;
+        wdt.mr.modify(|_, w| w.wddis().set_bit());
+        let mut a: [u8; 4] = [0; 4];
+        for i in 0..32768 {
+            efc.read(i * 4, &mut a).unwrap();
+            let a_int: u32 = u32::from_be_bytes(a);
+            rprintln!("Word 0x{:x}: 0x{:x}", i, a_int);
+        }
+
+        let array: [u8; 512] = [0xad; 512];
+        for _j in 0..10 {
+            efc.write(SECTOR_SIZE as u32 * 8, &array).unwrap();
+            efc.write(SECTOR_SIZE as u32 * 8 + PAGE_SIZE as u32, &array)
+                .unwrap();
+            efc.write(SECTOR_SIZE as u32 * 8 + 2 * PAGE_SIZE as u32, &array)
+                .unwrap();
+            efc.write(SECTOR_SIZE as u32 * 8 + 3 * PAGE_SIZE as u32, &array)
+                .unwrap();
+            for i in 8..12 {
+                efc.read(SECTOR_SIZE as u32 * 8 + i * 4, &mut a).unwrap();
+                let a_int: u32 = u32::from_be_bytes(a);
+                rprintln!("Word 0x{:x}: 0x{:x}", i, a_int);
+            }
+            rprintln!("Erasing Flash Sector...");
+            efc.erase(SECTOR_SIZE as u32 * 8, SECTOR_SIZE as u32 * 9)
+                .unwrap();
+            rprintln!("Flash Sector Erased");
+            for i in 8..12 {
+                efc.read(SECTOR_SIZE as u32 * 8 + i * 4, &mut a).unwrap();
+                let a_int: u32 = u32::from_be_bytes(a);
+                rprintln!("Word 0x{:x}: 0x{:x}", i, a_int);
+            }
+        }
+
+        (Shared {}, Local {}, init::Monotonics())
+    }
+}

boards/atsamv71_xult/Cargo.toml

@@ -10,11 +10,14 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 cortex-m-rtic = "1.0"
 cortex-m = "0.7"
+cortex-m-rt = "*"
 panic-rtt-target = { version = "0.1.2", features = ["cortex-m"] }
+panic-halt = "*"
 rtt-target = { version = "0.3.1", features = ["cortex-m"] }
 heapless = "0.7"
 usbd-serial = "0.1.1"
 dwt-systick-monotonic = "1.0.0"
+embedded-storage = "0.3"
 
 [dev-dependencies]
 mcan = "0.2"

boards/atsamv71_xult/examples/bootloader.rs

@@ -0,0 +1,169 @@
+#![no_std]
+#![no_main]
+use atsamx7x_hal as hal;
+use cortex_m::asm::bootload;
+use cortex_m_rt::entry;
+use embedded_storage::nor_flash::NorFlash;
+use hal::efc::*;
+use hal::pac;
+use panic_halt as _;
+
+#[entry]
+fn main() -> ! {
+    const BLINKY_ARRAY: [u32; 1024] = [
+        0x20440000, 0x420169, 0x4204e1, 0x4209f3, 0x4204e1, 0x4204e1, 0x4204e1, 0x0, 0x0, 0x0, 0x0,
+        0x4204e1, 0x4204e1, 0x0, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x0, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x0, 0x0, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1,
+        0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x4204e1, 0x34fff04f, 0xf00046a6,
+        0x46a6f9b8, 0x490f480e, 0x42812200, 0xc004d001, 0x480de7fb, 0x4a0e490d, 0xd0024281,
+        0xc008ca08, 0x480ce7fa, 0x170f44f, 0x430a6802, 0xf3bf6002, 0xf3bf8f4f, 0xb5008f6f,
+        0xf866f000, 0xde00, 0x20400000, 0x20400440, 0x20400000, 0x20400000, 0x420a48, 0xe000ed88,
+        0xbabff000, 0x466fb580, 0x2005b084, 0x4a30f240, 0xf6409001, 0xf2c02016, 0xf2c20042,
+        0x90000a40, 0x4f8da, 0x8f5ff3bf, 0x4669b158, 0x21009103, 0x1008f88d, 0x5115f240,
+        0xa8026802, 0x142f2c0, 0xf6404790, 0xf6406530, 0xf2c4281b, 0xf641050e, 0x68a83400,
+        0xf2404629, 0xf10d5915, 0xf44f0b08, 0xf2c00600, 0xdc00842, 0x4b7f2c0, 0x182f360, 0x942f2c0,
+        0xe008600e, 0x20068a8, 0xbf484628, 0x60063004, 0xf0004620, 0x2005fa80, 0x8000e9cd, 0x4f8da,
+        0x8f5ff3bf, 0xd0ed2800, 0x91034669, 0xf88d2100, 0x46491008, 0x46586802, 0xe7e34790,
+        0x466fb580, 0xffa4f7ff, 0xf803f000, 0xffa2f7ff, 0xb5f0defe, 0xe92daf03, 0xb0840b00,
+        0x4400f240, 0x4930f240, 0x440f2c2, 0x940f2c2, 0x801f04f, 0x21304620, 0x8000f889,
+        0xfb9df000, 0x2008f640, 0xf2c04626, 0xf2400042, 0xf8460200, 0xf44f0f18, 0x62206080,
+        0x240f2c2, 0xf3bf6ae0, 0xf3bf8f5f, 0x25008f5f, 0x3f020, 0xf64062e0, 0xf3bf2020, 0xf2c08f5f,
+        0x61e20042, 0x68007901, 0x8010f8c4, 0xf6406020, 0xf2c02028, 0x71210042, 0xe9d06165,
+        0xf3bf1200, 0x68808f5f, 0xe9c460e0, 0xf0001201, 0x4604fa22, 0xfa15f000, 0xf88907e0,
+        0xf8c9500c, 0xbf086008, 0xfa0ff000, 0x2034f640, 0x8f5ff3bf, 0x42f2c0, 0x4f8c9, 0xf3bf2005,
+        0x90018f5f, 0x2011f640, 0x42f2c0, 0xf8d99000, 0xf3bf0004, 0xb1588f5f, 0x91034669,
+        0xf88d2100, 0xf2401008, 0x68025115, 0xf2c0a802, 0x47900142, 0x10f641, 0x4100f44f, 0xef2c4,
+        0x21086441, 0x5100f2ca, 0xf2406001, 0xf2c46068, 0xf64f000e, 0xf85071ff, 0xf6cf2c48,
+        0xf1016100, 0x401313ff, 0x7201f64f, 0x237f2c0, 0xf8404313, 0x68033c48, 0xd10907db,
+        0x7db6803, 0x6803bf04, 0x73c3ea5f, 0x6803d102, 0xd0f207db, 0x3c48f850, 0x12fff102,
+        0x43114019, 0x1c48f840, 0x3c96801, 0x6801d409, 0xbf5c03c9, 0xea5f6801, 0xd40231c1,
+        0x3c96801, 0xf640d5f2, 0xf24441e4, 0xf2c43300, 0xf2c4010e, 0x680a5346, 0x2fef002,
+        0x600a431a, 0x2598f8d0, 0xf4222301, 0xf8c06270, 0xf8502598, 0xf3632c38, 0xf8400201,
+        0x68022c38, 0xd4090712, 0x7126802, 0x6802bf5c, 0x7202ea5f, 0x6802d402, 0xd5f20712,
+        0x2c38f850, 0x270f022, 0x2c38f840, 0x7126802, 0x6802d409, 0xbf5c0712, 0xea5f6802,
+        0xd4027202, 0x7126802, 0xf850d5f2, 0xf4222c38, 0xf8407240, 0x68022c38, 0xd4090712,
+        0x7126802, 0x6802bf5c, 0x7202ea5f, 0x6802d402, 0xd5f20712, 0x6280f44f, 0x2c58f840,
+        0x2c50f850, 0xd40c0552, 0x2c50f850, 0xbf5c0552, 0x2c50f850, 0x5242ea5f, 0xf850d403,
+        0x5522c50, 0x2000d5ee, 0x1a8f8c1, 0xf44f, 0x11cf8c1, 0x170f8c1, 0x12cf8c1, 0x14cf8c1,
+        0xf93bf000, 0xe8bdb004, 0xbdf00b00, 0x4770e7fe, 0xaf03b5f0, 0xbd04f84d, 0x4605460c,
+        0xf935f000, 0xf0004606, 0x4628f928, 0x7f047a0, 0xf85dd105, 0xe8bdbb04, 0xf00040f0,
+        0xf85db920, 0xbdf0bb04, 0xaf03b5f0, 0xf00e92d, 0xf240b085, 0x78034230, 0x240f2c2,
+        0x68e66894, 0x8f5ff3bf, 0xf3bf6925, 0x68a18f5f, 0xbf38428e, 0xd30a428d, 0xf3bf2600,
+        0x60e68f5f, 0x8f5ff3bf, 0x8f5ff3bf, 0xf3bf6126, 0x7b118f5f, 0xc00f04f, 0x42999303,
+        0x2200d101, 0x9001e075, 0x10ff003, 0xf6406890, 0xf2c02238, 0xf1a70242, 0x5c51091e,
+        0x802f04f, 0xf3bf6940, 0xf8078f5f, 0x21ff1c1d, 0x3f000, 0x1c1ef807, 0xbf181ec1, 0xf1b14601,
+        0xbf180b01, 0x43f0468b, 0xf3bf68e3, 0x69228f5f, 0x8f5ff3bf, 0x42ab68a5, 0x42aabf38,
+        0xf3bfd30e, 0xf8c48f5f, 0xf3bfc00c, 0xf3bf8f5f, 0xf8c48f5f, 0xf3bfc010, 0x68a58f5f,
+        0xe0074405, 0xd90142b2, 0xe0031815, 0xbf142a00, 0x44051bad, 0xbf884545, 0xb97d4645,
+        0xf02f1bb, 0xf3bfd105, 0x60e68f5f, 0x8f5ff3bf, 0xf1bbe7d0, 0xd01c0f00, 0xf04f2001,
+        0xe0010a00, 0x46aa2000, 0x68609002, 0x46524649, 0xf0004430, 0x68a0f8a1, 0xf04f4456,
+        0x42860c00, 0x4666bf28, 0xf0002d00, 0x9a028088, 0xebb844d1, 0xd1b0080a, 0x2202e000,
+        0x4030f240, 0xf2c29903, 0x73010040, 0x68409801, 0xb500e9d0, 0xf0006960, 0xf1b00003,
+        0xbf180a03, 0x2a004682, 0x8f5ff3bf, 0x2d00d156, 0xf04fd054, 0xea6f0e00, 0x68e30c06,
+        0x8f5ff3bf, 0xf3bf6922, 0x68a08f5f, 0xbf384283, 0xd30f4282, 0x8f5ff3bf, 0xe00cf8c4,
+        0x8f5ff3bf, 0x8f5ff3bf, 0xe010f8c4, 0x8f5ff3bf, 0xeb0068a0, 0xe00a090c, 0xd90242b2,
+        0x90ceb02, 0x2a00e005, 0xeba0bf14, 0xeb000906, 0x45a9090c, 0x46a9bf88, 0xf00f1b9,
+        0xf1bad10e, 0xd1050f02, 0x8f5ff3bf, 0xf3bf60e6, 0xe7ca8f5f, 0xf00f1ba, 0xf04fd01a,
+        0xe0000800, 0x686046c8, 0x46424659, 0xf0004430, 0x68a0f833, 0xf04f4446, 0x42860e00,
+        0x4676bf28, 0xf00f1b9, 0x44c3bf1c, 0x508ebb5, 0xe00bd1ad, 0xd1092a02, 0x4030f240,
+        0xf2c29903, 0x73010040, 0xe8bdb005, 0xbdf00f00, 0x8f5ff3bf, 0xf3bf60e6, 0xb0058f5f,
+        0xf00e8bd, 0x9a02bdf0, 0xb672e77c, 0xb6624770, 0x21014770, 0x50eb01, 0xd1fd3801,
+        0xf3ef4770, 0x47708010, 0xb800f000, 0xb84ef000, 0x4611460b, 0xf000461a, 0xb5d0b8ed,
+        0x4613af02, 0x2904b2d2, 0x414d339, 0xe04f1a1, 0x6303ea44, 0xea432401, 0xeb042302,
+        0x4413049e, 0x403f014, 0x4684d00a, 0xf84c2c01, 0xd10d3b04, 0x46714660, 0xf0cf1be,
+        0xe002d219, 0xf0cf1be, 0x4660d215, 0x40d0e8bd, 0xbfd4f7ff, 0x60432c02, 0x3908d106,
+        0x46843008, 0xf0cf1be, 0xe7f0d207, 0x390c6083, 0x4684300c, 0xf0cf1be, 0x3910d3e9,
+        0x3300e9c0, 0x3302e9c0, 0x29033010, 0x4684d8f7, 0xe8bd4660, 0xf7ff40d0, 0x2200bfb5,
+        0xbfb7f7ff, 0xaf03b5f0, 0x700e92d, 0xd9632a0f, 0xf0134243, 0xeb000403, 0xd0160c04,
+        0x460e4603, 0xf8037835, 0x45635b01, 0x7875d20f, 0x5b01f803, 0xbf3e4563, 0xf80378b5,
+        0x45635b01, 0x78f5d205, 0xf8033604, 0x45635b01, 0xeba2d3ea, 0xeb010e04, 0xf02e0904,
+        0xeb0c0803, 0xea5f0308, 0xd03e7189, 0xf01f1b8, 0x2118db54, 0xac9ea01, 0x103f029, 0x6c9ea4f,
+        0x508f101, 0x4271680a, 0x618f001, 0x1c04f855, 0xf20afa22, 0xf406fa01, 0xf84c4322,
+        0x459c2b04, 0x682ad23c, 0xf10afa21, 0xf406fa02, 0xf84c4321, 0x459c1b04, 0x6869bf3f,
+        0xf20afa22, 0xf406fa01, 0xbf3c4322, 0x2b04f84c, 0xd227459c, 0xfa2168aa, 0x3510f10a,
+        0xf406fa02, 0xf84c4321, 0x459c1b04, 0xe01bd3d4, 0xb9f24603, 0xf1b8e033, 0xdb150f01,
+        0x6821464c, 0x1b04f84c, 0xd20f459c, 0xf84c6861, 0x459c1b04, 0x68a1bf3e, 0x1b04f84c,
+        0xd205459c, 0x341068e1, 0x1b04f84c, 0xd3ea459c, 0x108eb09, 0x203f00e, 0x441ab1aa,
+        0xf803780e, 0x42936b01, 0x784ed20f, 0x6b01f803, 0xbf3e4293, 0xf803788e, 0x42936b01,
+        0x78ced205, 0xf8033104, 0x42936b01, 0xe8bdd3ea, 0xbdf00700, 0xaf02b5d0, 0xd9362a0f,
+        0xf0134243, 0xeb000e03, 0xd0100c0e, 0xf8034603, 0x45631b01, 0xf803d20b, 0x45631b01,
+        0xf803bf3c, 0x45631b01, 0xf803d203, 0x45631b01, 0xeba2d3ef, 0xf02e0e0e, 0xeb0c0203,
+        0x2a010302, 0xb2cadb13, 0x3401f04f, 0xf84c4362, 0x459c2b04, 0xf84cd20b, 0x459c2b04,
+        0xf84cbf3c, 0x459c2b04, 0xf84cd203, 0x459c2b04, 0xf00ed3ef, 0xb9120203, 0x4603e012,
+        0x441ab182, 0x1b01f803, 0xd20b4293, 0x1b01f803, 0xbf3c4293, 0x1b01f803, 0xd2034293,
+        0x1b01f803, 0xd3ef4293, 0xf7ffbdd0, 0x4670bf08, 0x42082104, 0xf3efd102, 0xe0028008,
+        0x8009f3ef, 0xe7fee7ff, 0x6d726554, 0x6c616e69, 0x696e4900, 0x64490a74, 0x4c0a656c,
+        0xa706f6f, 0x47474553, 0x5f, 0x52205245, 0x5454, 0x0, 0x4204e5, 0x33323130, 0x37363534,
+        0x42413938, 0x46454443, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+        0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
+    ];
+    // transmute into u8 array
+    let blinky_array: [u8; 4096] = unsafe { core::mem::transmute(BLINKY_ARRAY) };
+    let efc = pac::Peripherals::take().unwrap().EFC;
+    let mut efc = Efc::new(efc, VddioLevel::V3);
+
+    efc.erase(SECTOR_SIZE as u32, 2 * SECTOR_SIZE as u32)
+        .unwrap();
+    efc.write(SECTOR_SIZE as u32, &blinky_array).unwrap();
+
+    unsafe {
+        bootload(0x0420000 as *const u32);
+    }
+}