--- stm32flash/dev_table.c	2017-08-15 12:43:44.727882771 -0700
+++ stm32flash_new/dev_table.c	2017-08-29 10:08:16.700715014 -0700
@@ -69,5 +69,8 @@
 	{0x9b0, "STM32W-256K"       , 0x20000200, 0x20004000, 0x08000000, 0x08040000,  1, 2048, 0, 0, 0, 0},
 	/* STML431/33 */
 	{0x435, "L43xxC"            , 0x20003100, 0x20010000, 0x08000000, 0x08040000, 64, 2048, 0x1FFF7800, 0x1FFF7810, 0x1FFF0000, 0x1FFf7000},
+	/* L4 */
+	{0x415, "STM32L476xx/486xx" , 0x20003100, 0x20018000, 0x08000000, 0x08100000,  1, 2048, 0x1FFF7800, 0x1FFFF80F, 0x1FFF0000, 0x1FFF7000, 0}, 
+	{0x435, "STM32L43xxx/44xxx" , 0x20003100, 0x2000C000, 0x08000000, 0x08100000,  1, 2048, 0x1FFF7800, 0x1FFFF80F, 0x1FFF0000, 0x1FFF7000, 0},	
 	{0x0}
 };