From 72bbfec39d3f826c1a8dd485af2da4bcbdd32e35 Mon Sep 17 00:00:00 2001
From: Caleb Garrett <47389035+caleb-garrett@users.noreply.github.com>
Date: Sat, 3 Feb 2024 16:10:00 -0500
Subject: Added hash DMA implementation.

---
 examples/stm32f7/src/bin/hash.rs | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'examples/stm32f7/src')

diff --git a/examples/stm32f7/src/bin/hash.rs b/examples/stm32f7/src/bin/hash.rs
index 1fd0e87eb..a9f5aa197 100644
--- a/examples/stm32f7/src/bin/hash.rs
+++ b/examples/stm32f7/src/bin/hash.rs
@@ -4,27 +4,30 @@
 use defmt::info;
 use embassy_executor::Spawner;
 use embassy_stm32::Config;
-use embassy_time::{Duration, Instant};
+use embassy_time::Instant;
 use {defmt_rtt as _, panic_probe as _};
 
 use embassy_stm32::hash::*;
 use sha2::{Digest, Sha256};
 
-const TEST_STRING_1: &[u8] = b"hello world";
-
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) -> ! {
     let config = Config::default();
     let p = embassy_stm32::init(config);
 
+    let test_1: &[u8] = b"as;dfhaslfhas;oifvnasd;nifvnhasd;nifvhndlkfghsd;nvfnahssdfgsdafgsasdfasdfasdfasdfasdfghjklmnbvcalskdjghalskdjgfbaslkdjfgbalskdjgbalskdjbdfhsdfhsfghsfghfgh";
+    let test_2: &[u8] = b"fdhalksdjfhlasdjkfhalskdjfhgal;skdjfgalskdhfjgalskdjfglafgadfgdfgdafgaadsfgfgdfgadrgsyfthxfgjfhklhjkfgukhulkvhlvhukgfhfsrghzdhxyfufynufyuszeradrtydyytserr";
+
+    let mut hw_hasher = Hash::new(p.HASH, p.DMA2_CH7);
+
     let hw_start_time = Instant::now();
 
     // Compute a digest in hardware.
-    let mut hw_hasher = Hash::new(p.HASH);
-    let mut context = hw_hasher.start(Algorithm::SHA256, DataType::Width8);
-    hw_hasher.update(&mut context, TEST_STRING_1);
+    let mut context = hw_hasher.start(Algorithm::SHA256, DataType::Width8).await;
+    hw_hasher.update(&mut context, test_1).await;
+    hw_hasher.update(&mut context, test_2).await;
     let mut buffer: [u8; 32] = [0; 32];
-    let hw_digest = hw_hasher.finish(context, &mut buffer);
+    let hw_digest = hw_hasher.finish(context, &mut buffer).await;
 
     let hw_end_time = Instant::now();
     let hw_execution_time = hw_end_time - hw_start_time;
@@ -33,7 +36,8 @@ async fn main(_spawner: Spawner) -> ! {
 
     // Compute a digest in software.
     let mut sw_hasher = Sha256::new();
-    sw_hasher.update(TEST_STRING_1);
+    sw_hasher.update(test_1);
+    sw_hasher.update(test_2);
     let sw_digest = sw_hasher.finalize();
 
     let sw_end_time = Instant::now();
-- 
cgit