diff --git a/src/stlink-common.c b/src/stlink-common.c
index 86eca08..0d11a63 100644
--- a/src/stlink-common.c
+++ b/src/stlink-common.c
@@ -143,7 +143,7 @@ static inline uint32_t read_flash_obr(stlink_t *sl) {
 
 static inline uint32_t read_flash_cr(stlink_t *sl) {
     uint32_t res;
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||(sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
         res = stlink_read_debug32(sl, FLASH_F4_CR);
     else
@@ -156,7 +156,7 @@ static inline uint32_t read_flash_cr(stlink_t *sl) {
 
 static inline unsigned int is_flash_locked(stlink_t *sl) {
     /* return non zero for true */
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
         return read_flash_cr(sl) & (1 << FLASH_F4_CR_LOCK);
     else
@@ -169,7 +169,7 @@ static void unlock_flash(stlink_t *sl) {
        an invalid sequence results in a definitive lock of
        the FPEC block until next reset.
      */
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
    	stlink_write_debug32(sl, FLASH_F4_KEYR, FLASH_KEY1);
         stlink_write_debug32(sl, FLASH_F4_KEYR, FLASH_KEY2);
@@ -195,7 +195,7 @@ static int unlock_flash_if(stlink_t *sl) {
 }
 
 static void lock_flash(stlink_t *sl) {
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
     	const uint32_t n = read_flash_cr(sl) | (1 << FLASH_F4_CR_LOCK);
     	stlink_write_debug32(sl, FLASH_F4_CR, n);
@@ -208,7 +208,7 @@ static void lock_flash(stlink_t *sl) {
 
 
 static void set_flash_cr_pg(stlink_t *sl) {
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
 		uint32_t x = read_flash_cr(sl);
 		x |= (1 << FLASH_CR_PG);
@@ -221,7 +221,7 @@ static void set_flash_cr_pg(stlink_t *sl) {
 
 static void __attribute__((unused)) clear_flash_cr_pg(stlink_t *sl) {
     const uint32_t n = read_flash_cr(sl) & ~(1 << FLASH_CR_PG);
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
     	stlink_write_debug32(sl, FLASH_F4_CR, n);
     else
@@ -239,7 +239,7 @@ static void __attribute__((unused)) clear_flash_cr_per(stlink_t *sl) {
 }
 
 static void set_flash_cr_mer(stlink_t *sl) {
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
         stlink_write_debug32(sl, FLASH_F4_CR,
                              stlink_read_debug32(sl, FLASH_F4_CR) | (1 << FLASH_CR_MER));
@@ -249,7 +249,7 @@ static void set_flash_cr_mer(stlink_t *sl) {
 }
 
 static void __attribute__((unused)) clear_flash_cr_mer(stlink_t *sl) {
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
         stlink_write_debug32(sl, FLASH_F4_CR,
                              stlink_read_debug32(sl, FLASH_F4_CR) & ~(1 << FLASH_CR_MER));
@@ -259,7 +259,7 @@ static void __attribute__((unused)) clear_flash_cr_mer(stlink_t *sl) {
 }
 
 static void set_flash_cr_strt(stlink_t *sl) {
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
         uint32_t x = read_flash_cr(sl);
         x |= (1 << FLASH_F4_CR_STRT);
@@ -276,7 +276,7 @@ static inline uint32_t read_flash_acr(stlink_t *sl) {
 
 static inline uint32_t read_flash_sr(stlink_t *sl) {
     uint32_t res;
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
         res = stlink_read_debug32(sl, FLASH_F4_SR);
     else
@@ -286,7 +286,7 @@ static inline uint32_t read_flash_sr(stlink_t *sl) {
 }
 
 static inline unsigned int is_flash_busy(stlink_t *sl) {
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD))
         return read_flash_sr(sl) & (1 << FLASH_F4_SR_BSY);
     else
@@ -931,7 +931,7 @@ int stlink_fread(stlink_t* sl, const char* path, stm32_addr_t addr, size_t size)
     size_t off;
     int num_empty = 0;
     unsigned char erased_pattern = (sl->chip_id == STM32_CHIPID_L1_MEDIUM  || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-                                     || sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE) ? 0:0xff;
+                                     || sl->chip_id == STM32_CHIPID_L1_HIGH) ? 0:0xff;
 
     const int fd = open(path, O_RDWR | O_TRUNC | O_CREAT, 00700);
     if (fd == -1) {
@@ -1013,7 +1013,7 @@ uint32_t calculate_F4_sectornum(uint32_t flashaddr){
 }
 
 uint32_t stlink_calculate_pagesize(stlink_t *sl, uint32_t flashaddr){
-	if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+	if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
       (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
 		uint32_t sector=calculate_F4_sectornum(flashaddr);
 		if (sector<4) sl->flash_pgsz=0x4000;
@@ -1031,7 +1031,7 @@ uint32_t stlink_calculate_pagesize(stlink_t *sl, uint32_t flashaddr){
  */
 int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr)
 {
-  if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||  (sl->chip_id == STM32_CHIPID_F4_DE) ||
       (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
     /* wait for ongoing op to finish */
     wait_flash_busy(sl);
@@ -1059,7 +1059,7 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr)
 	fprintf(stdout, "Erase Final CR:0x%x\n", read_flash_cr(sl));
 #endif
   } else if (sl->chip_id == STM32_CHIPID_L1_MEDIUM || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-		|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE) {
+		|| sl->chip_id == STM32_CHIPID_L1_HIGH) {
 
     uint32_t val;
 
@@ -1169,7 +1169,7 @@ int stlink_erase_flash_page(stlink_t *sl, stm32_addr_t flashaddr)
 
 int stlink_erase_flash_mass(stlink_t *sl) {
     if (sl->chip_id == STM32_CHIPID_L1_MEDIUM || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS 
-	|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE) {
+	|| sl->chip_id == STM32_CHIPID_L1_HIGH) {
         /* erase each page */
         int i = 0, num_pages = sl->flash_size/sl->flash_pgsz;
         for (i = 0; i < num_pages; i++) {
@@ -1340,13 +1340,13 @@ int write_loader_to_sram(stlink_t *sl, stm32_addr_t* addr, size_t* size) {
     size_t loader_size;
 
     if (sl->chip_id == STM32_CHIPID_L1_MEDIUM || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-		|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE ) { /* stm32l */
+		|| sl->chip_id == STM32_CHIPID_L1_HIGH ) { /* stm32l */
         loader_code = loader_code_stm32l;
         loader_size = sizeof(loader_code_stm32l);
     } else if (sl->core_id == STM32VL_CORE_ID || sl->chip_id == STM32_CHIPID_F3  || sl->chip_id == STM32_CHIPID_F37x) {
         loader_code = loader_code_stm32vl;
         loader_size = sizeof(loader_code_stm32vl);
-    } else if (sl->chip_id == STM32_CHIPID_F2 || sl->chip_id == STM32_CHIPID_F4 ||
+    } else if (sl->chip_id == STM32_CHIPID_F2 || sl->chip_id == STM32_CHIPID_F4 || (sl->chip_id == STM32_CHIPID_F4_DE) ||
                sl->chip_id == STM32_CHIPID_F4_LP || sl->chip_id == STM32_CHIPID_F4_HD){
         loader_code = loader_code_stm32f4;
         loader_size = sizeof(loader_code_stm32f4);
@@ -1515,7 +1515,7 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, uint32_t
     ILOG("Finished erasing %d pages of %d (%#x) bytes\n",
         page_count, sl->flash_pgsz, sl->flash_pgsz);
 
-    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) ||
+    if ((sl->chip_id == STM32_CHIPID_F2) || (sl->chip_id == STM32_CHIPID_F4) || (sl->chip_id == STM32_CHIPID_F4_DE) ||
         (sl->chip_id == STM32_CHIPID_F4_LP) || (sl->chip_id == STM32_CHIPID_F4_HD)) {
     	/* todo: check write operation */
 
@@ -1583,7 +1583,7 @@ int stlink_write_flash(stlink_t *sl, stm32_addr_t addr, uint8_t* base, uint32_t
     }	//STM32F4END
 
     else if (sl->chip_id == STM32_CHIPID_L1_MEDIUM || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-		|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE ) {
+		|| sl->chip_id == STM32_CHIPID_L1_HIGH ) {
     	/* use fast word write. todo: half page. */
     	uint32_t val;
 
@@ -1740,7 +1740,7 @@ int stlink_fwrite_flash(stlink_t *sl, const char* path, stm32_addr_t addr) {
     int err;
     unsigned int num_empty = 0, index;
     unsigned char erased_pattern =(sl->chip_id == STM32_CHIPID_L1_MEDIUM || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-	|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE )?0:0xff;
+	|| sl->chip_id == STM32_CHIPID_L1_HIGH )?0:0xff;
     mapped_file_t mf = MAPPED_FILE_INITIALIZER;
     if (map_file(&mf, path) == -1) {
         ELOG("map_file() == -1\n");
@@ -1781,7 +1781,7 @@ int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, cons
     }
 
     if (sl->chip_id == STM32_CHIPID_L1_MEDIUM  || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-	|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE ) {
+	|| sl->chip_id == STM32_CHIPID_L1_HIGH ) {
 
         size_t count = size / sizeof(uint32_t);
         if (size % sizeof(uint32_t)) ++count;
@@ -1804,7 +1804,7 @@ int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, cons
         stlink_write_reg(sl, 0, 3); /* flash bank 0 (input) */
         stlink_write_reg(sl, fl->loader_addr, 15); /* pc register */
 
-    } else if (sl->chip_id == STM32_CHIPID_F2 || sl->chip_id == STM32_CHIPID_F4 ||
+    } else if (sl->chip_id == STM32_CHIPID_F2 || sl->chip_id == STM32_CHIPID_F4 || (sl->chip_id == STM32_CHIPID_F4_DE) ||
                sl->chip_id == STM32_CHIPID_F4_LP || sl->chip_id == STM32_CHIPID_F4_HD) {
 
         size_t count = size / sizeof(uint32_t);
@@ -1839,7 +1839,7 @@ int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, cons
 
     /* check written byte count */
     if (sl->chip_id == STM32_CHIPID_L1_MEDIUM || sl->chip_id == STM32_CHIPID_L1_MEDIUM_PLUS
-	|| sl->chip_id == STM32_CHIPID_L1_HIGH || sl->chip_id == STM32_CHIPID_L152_RE ) {
+	|| sl->chip_id == STM32_CHIPID_L1_HIGH ) {
 
       size_t count = size / sizeof(uint32_t);
       if (size % sizeof(uint32_t)) ++count;
@@ -1858,7 +1858,7 @@ int run_flash_loader(stlink_t *sl, flash_loader_t* fl, stm32_addr_t target, cons
         return -1;
       }
 
-    } else if (sl->chip_id == STM32_CHIPID_F2 || sl->chip_id == STM32_CHIPID_F4 ||
+    } else if (sl->chip_id == STM32_CHIPID_F2 || sl->chip_id == STM32_CHIPID_F4 || (sl->chip_id == STM32_CHIPID_F4_DE) ||
                sl->chip_id == STM32_CHIPID_F4_LP || sl->chip_id == STM32_CHIPID_F4_HD) {
 
         stlink_read_reg(sl, 2, &rr);