diff --git a/records/board/stm32h743xx_udb_bl.yaml b/records/board/stm32h743xx_udb_bl.yaml
index c7f0f29d29..f52bc312be 100644
--- a/records/board/stm32h743xx_udb_bl.yaml
+++ b/records/board/stm32h743xx_udb_bl.yaml
@@ -1,4 +1,6 @@
 common:
+    macros:
+        - UDB
     includes:
         - source/board/udb/include/udb_version.h
     sources:
diff --git a/source/board/udb/include/udb.ld b/source/board/udb/include/udb.ld
index d2940bad8a..0ce26ccdff 100644
--- a/source/board/udb/include/udb.ld
+++ b/source/board/udb/include/udb.ld
@@ -2,20 +2,20 @@
 
 MEMORY
 {
-    m_cfgrom_bl           (RW)  : ORIGIN = DAPLINK_ROM_CONFIG_ADMIN_START, LENGTH = DAPLINK_ROM_CONFIG_ADMIN_SIZE
+    m_udb_bl_version_rom           (RW)  : ORIGIN = DAPLINK_ROM_UDB_BL_VERSION_START, LENGTH = DAPLINK_ROM_UDB_BL_VERSION_SIZE
 }
 
 SECTIONS
 {
-    .cfgrom_bl :
+    .udb_bl_version_rom :
     {
-        KEEP(*(cfgrom_bl))
+        KEEP(*(udb_bl_version_rom))
         FILL(0xffffffff)
-        . = ORIGIN(m_cfgrom_bl) + LENGTH(m_cfgrom_bl) - 4;
+        . = ORIGIN(m_udb_bl_version_rom) + LENGTH(m_udb_bl_version_rom) - 4;
         /* Need some contents in this section or it won't be copied to bin or hex. The CRC will
         * be placed here by post_build_script.py. */
         LONG(0x55555555)
-    } > m_cfgrom_bl
+    } > m_udb_bl_version_rom
 }
 
 #include "stm32h743xx.ld"
diff --git a/source/board/udb/source/udb_version.c b/source/board/udb/source/udb_version.c
index 398f7e2e92..413ba66b00 100644
--- a/source/board/udb/source/udb_version.c
+++ b/source/board/udb/source/udb_version.c
@@ -31,7 +31,7 @@
 #endif // defined(UDB_VERSION_BASE) && defined(UDB_BUILD_NUMBER)
 
 #define UDB_BOOTLOADER_VERSION                  UDB_BUILD_VERSION
-#define UDB_BOOTLOADER_VERSION_SECTION_ADDR     DAPLINK_ROM_CONFIG_ADMIN_START
+#define UDB_BOOTLOADER_VERSION_SECTION_ADDR     DAPLINK_ROM_UDB_BL_VERSION_START
 #define BOOTLOADER_CFG_MAGIC_KEY                (0x5a5a5a5a)
 #define BOOTLOADER_MAX_VERSION_LENGTH           UDB_VERSION_MAX_LENGTH
 
@@ -63,7 +63,7 @@ COMPILER_ASSERT(sizeof(UDB_BOOTLOADER_VERSION) < BOOTLOADER_MAX_VERSION_LENGTH);
 COMPILER_ASSERT(sizeof(bootloader_version_t) < DAPLINK_SECTOR_SIZE);
 
 #ifdef DAPLINK_BL
-static volatile bootloader_version_t config_rom_bl __attribute__((section("cfgrom_bl"))) =
+static volatile bootloader_version_t udb_bl_version __attribute__((section("udb_bl_version_rom"))) =
 {
     .magic_key = BOOTLOADER_CFG_MAGIC_KEY,
     .version = UDB_BOOTLOADER_VERSION,
diff --git a/source/hic_hal/stm32/stm32h743xx/daplink_addr.h b/source/hic_hal/stm32/stm32h743xx/daplink_addr.h
index 78753bd85a..f414e6d6d0 100644
--- a/source/hic_hal/stm32/stm32h743xx/daplink_addr.h
+++ b/source/hic_hal/stm32/stm32h743xx/daplink_addr.h
@@ -24,8 +24,6 @@
 
 /* Device sizes */
 
-#define DAPLINK_ROM_START               0x08000000
-#define DAPLINK_ROM_SIZE                0x000A0000 // has to be a multiple of the sector size, only bank 1 is used, the datasheet says under table 7 in the notes section that the memory boundary is limited to this on each bank
 
 #define DAPLINK_STM32H743_DTCM_START    0x20000000
 #define DAPLINK_STM32H743_DTCM_SIZE     0x00020000
@@ -45,17 +43,30 @@
 
 /* ROM sizes */
 
+#define DAPLINK_ROM_START               0x08000000
 #define DAPLINK_ROM_BL_START            0x08000000
 #define DAPLINK_ROM_BL_SIZE             0x00020000 // 128 kB bootloader -- 1 sector
 
-#define DAPLINK_ROM_CONFIG_ADMIN_START  0x08020000
-#define DAPLINK_ROM_CONFIG_ADMIN_SIZE   0x00020000 // 1 sector
+#ifdef UDB
+#define DAPLINK_ROM_SIZE                0x000A0000 // has to be a multiple of the sector size, only bank 1 is used
+
+#define DAPLINK_ROM_UDB_BL_VERSION_START 0x08020000
+#define DAPLINK_ROM_UDB_BL_VERSION_SIZE  0x00020000 // 1 sector to keep everything else sector aligned
 
 #define DAPLINK_ROM_IF_START            0x08040000
 #define DAPLINK_ROM_IF_SIZE             0x00040000 // 2 sectors
 
 #define DAPLINK_ROM_CONFIG_USER_START   0x08080000
 #define DAPLINK_ROM_CONFIG_USER_SIZE    0x00020000 // 1 sector
+#else
+#define DAPLINK_ROM_SIZE                0x00080000 // has to be a multiple of the sector size, only bank 1 is used
+
+#define DAPLINK_ROM_IF_START            0x08020000
+#define DAPLINK_ROM_IF_SIZE             0x00040000 // 2 sectors
+
+#define DAPLINK_ROM_CONFIG_USER_START   0x08060000
+#define DAPLINK_ROM_CONFIG_USER_SIZE    0x00020000 // 1 sector
+#endif
 
 /* RAM sizes */
 
@@ -79,7 +90,7 @@
 #define DAPLINK_ROM_APP_START            DAPLINK_ROM_IF_START
 #define DAPLINK_ROM_APP_SIZE             DAPLINK_ROM_IF_SIZE
 #define DAPLINK_ROM_UPDATE_START         DAPLINK_ROM_BL_START
-#define DAPLINK_ROM_UPDATE_SIZE          (DAPLINK_ROM_BL_SIZE + DAPLINK_ROM_CONFIG_ADMIN_SIZE)
+#define DAPLINK_ROM_UPDATE_SIZE          (DAPLINK_ROM_BL_SIZE + DAPLINK_ROM_UDB_BL_VERSION_SIZE)
 
 #else