Added functions to erase all the user code pages at once.

Author: fnoble

src/flash.c

@@ -165,3 +165,10 @@ void flash_reset() {
   erased_page_flags = 0;
 }
 
+void flash_erase_all_user() {
+  // Erase all user flash pages
+  uint8_t i;
+  for (i=USER_FIRST_PAGE; i<FLASH_PAGES; i++)
+    flash_erase_page(i);
+}
+

src/flash.h

@@ -39,5 +39,7 @@ void flash_check_and_erase(uint8_t page);
 void flash_check_erase_and_write(uint16_t buff[], uint16_t len, uint16_t flash_addr);
 // Reset record of which pages have been erased
 void flash_reset();
+// Erase all user flash pages
+void flash_erase_all_user();
 
 #endif // _FLASH_H_