add comments and change wrong page number

tock · Sep 11, 2020 · e131a13 · e131a13
1 parent 319d2f6
commit e131a13
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Showing 2 changed files with 5 additions and 5 deletions.
diff --git a/boards/stm32f3discovery/src/main.rs b/boards/stm32f3discovery/src/main.rs
@@ -620,8 +620,8 @@ pub unsafe fn reset_handler() {
     let nonvolatile_storage = components::nonvolatile_storage::NonvolatileStorageComponent::new(
         board_kernel,
         &stm32f303xc::flash::FLASH,
-        0x08038000,
-        0x8000,
+        0x08038000, // Start address for userspace accesible region
+        0x8000,     // Length of userspace accesible region (16 pages)
         &_sstorage as *const u8 as usize,
         &_estorage as *const u8 as usize - &_sstorage as *const u8 as usize,
     )

diff --git a/chips/stm32f303xc/src/flash.rs b/chips/stm32f303xc/src/flash.rs
@@ -476,7 +476,7 @@ impl Flash {
     }
 
     pub fn erase_page(&self, page_number: usize) -> ReturnCode {
-        if page_number > 128 {
+        if page_number > 127 {
             return ReturnCode::EINVAL;
         }
 
@@ -517,7 +517,7 @@ impl Flash {
         page_number: usize,
         buffer: &'static mut StmF303Page,
     ) -> Result<(), (ReturnCode, &'static mut StmF303Page)> {
-        if page_number > 128 {
+        if page_number > 127 {
             return Err((ReturnCode::EINVAL, buffer));
         }
 
@@ -543,7 +543,7 @@ impl Flash {
         page_number: usize,
         buffer: &'static mut StmF303Page,
     ) -> Result<(), (ReturnCode, &'static mut StmF303Page)> {
-        if page_number > 128 {
+        if page_number > 127 {
             return Err((ReturnCode::EINVAL, buffer));
         }