keep initialize last_addr and reject if it doesnt change

solokeys · Feb 13, 2020 · b78f2cd · b78f2cd
1 parent 601c980
commit b78f2cd
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/targets/stm32l432/bootloader/bootloader.c b/targets/stm32l432/bootloader/bootloader.c
@@ -50,15 +50,15 @@ typedef struct {
     uint8_t payload[255 - 10];
 } __attribute__((packed)) BootloaderReq;
 
-uint8_t * last_written_app_address;
+uint8_t * last_written_app_address = 0;
 
 /**
  * Erase all application pages. **APPLICATION_END_PAGE excluded**.
  */
 static void erase_application()
 {
     int page;
-    last_written_app_address = (uint8_t*) APPLICATION_START_ADDR;
+    last_written_app_address = (uint8_t*) 0;
     for(page = APPLICATION_START_PAGE; page < APPLICATION_END_PAGE; page++)
     {
         flash_erase_page(page);
@@ -114,6 +114,10 @@ int is_bootloader_disabled()
 bool is_firmware_version_newer_or_equal()
 {
 
+    if (last_written_app_address == 0) {
+        return false;
+    }
+
     printf1(TAG_BOOT,"Current firmware version: %u.%u.%u.%u (%02x.%02x.%02x.%02x)\r\n",
           current_firmware_version.major, current_firmware_version.minor, current_firmware_version.patch, current_firmware_version.reserved,
           current_firmware_version.major, current_firmware_version.minor, current_firmware_version.patch, current_firmware_version.reserved