diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l552xx.s b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l552xx.s
index 03e2c6849e7a078cf1c9812cefc231a70e18d9a5..38da666868c58b5e26bce4ad5798a8b5ca239591 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l552xx.s
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l552xx.s
@@ -40,7 +40,7 @@ __initial_sp
 ;   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
 ; </h>
 
-Heap_Size       EQU     0x00000200
+Heap_Size       EQU     0x00000000
 
                 AREA    HEAP, NOINIT, READWRITE, ALIGN=3
 __heap_base
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l562xx.s b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l562xx.s
index eb8ac946992771ac551a966c0f8f51a5722df491..0906ebcaf8b1043d195e38ec515290f8bea1be5c 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l562xx.s
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/arm/startup_stm32l562xx.s
@@ -40,7 +40,7 @@ __initial_sp
 ;   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
 ; </h>
 
-Heap_Size       EQU     0x00000200
+Heap_Size       EQU     0x00000000
 
                 AREA    HEAP, NOINIT, READWRITE, ALIGN=3
 __heap_base
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash.icf
index 0eaadcbd9bea0075b88adfd85e91a45fb9aea646..d5b6e6e15a4cb1cdb6f1ab59184c39bec51194e7 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__     = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_SRAM1_start__  = 0x20000000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_ns.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_ns.icf
index 5170efc05f7b2c1a28bf7a8a3b120e3185faa11b..3c93a64047d6da6351c6cc0519b12d80b6b534b9 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_ns.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_ns.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_SRAM1_start__  = 0x20018000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_s.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_s.icf
index 2359d1dab1912ffc4fa23bf26ed25f4e25402730..b1399e394344b82d34e3ae84663d6ba6edbc9824 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_s.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xc_flash_s.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x30017FFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_ROM_NSC_start__   = 0x0C01E000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash.icf
index e5a63630ea626ee4581e21a3c24a30cf1ed70d8a..0d533dbf06bba403ddecff2b6fca02ec20f9c624 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__     = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_SRAM1_start__  = 0x20000000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_ns.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_ns.icf
index 6ff4b04336110156e842905a2a292bbef5cd4eca..1155b890b94f89b232ac3aa8a6527d8479030538 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_ns.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_ns.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_SRAM1_start__  = 0x20018000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_s.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_s.icf
index f5d83e38445e3e70c9e1d90b60786ff76298d8db..c4f5ce58c491c669aaddb07f66430c1beaa7e927 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_s.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xe_flash_s.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x30017FFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_ROM_NSC_start__   = 0x0C03E000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram.icf
index f0141b9243a57c7b17f53f2ec54c2d05ddf36092..7318e194976283b9178934d1d4b59d64e39af765 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define memory mem with size = 4G;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_ns.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_ns.icf
index fd9da5ea4c93e34b2a4e9f9788105c931ffb8147..8d7320eb39ed41d5d21718815808a6b7295ffcef 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_ns.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_ns.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define memory mem with size = 4G;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_s.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_s.icf
index 3c5669f7426c9bb6e29acb91f3885bce63f72fef..886c908a6358d10c16eac8988b13b0a7ad41ca5b 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_s.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l552xx_sram_s.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x30017EFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_ROM_NSC_start__   = 0;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash.icf
index e5a63630ea626ee4581e21a3c24a30cf1ed70d8a..0d533dbf06bba403ddecff2b6fca02ec20f9c624 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__     = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_SRAM1_start__  = 0x20000000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_ns.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_ns.icf
index 6ff4b04336110156e842905a2a292bbef5cd4eca..1155b890b94f89b232ac3aa8a6527d8479030538 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_ns.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_ns.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_SRAM1_start__  = 0x20018000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_s.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_s.icf
index f5d83e38445e3e70c9e1d90b60786ff76298d8db..c4f5ce58c491c669aaddb07f66430c1beaa7e927 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_s.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xe_flash_s.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x30017FFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_ROM_NSC_start__   = 0x0C03E000;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram.icf
index f0141b9243a57c7b17f53f2ec54c2d05ddf36092..7318e194976283b9178934d1d4b59d64e39af765 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define memory mem with size = 4G;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_ns.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_ns.icf
index fd9da5ea4c93e34b2a4e9f9788105c931ffb8147..8d7320eb39ed41d5d21718815808a6b7295ffcef 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_ns.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_ns.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x2002FFFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define memory mem with size = 4G;
diff --git a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_s.icf b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_s.icf
index 3c5669f7426c9bb6e29acb91f3885bce63f72fef..886c908a6358d10c16eac8988b13b0a7ad41ca5b 100644
--- a/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_s.icf
+++ b/bsp/stm32/libraries/STM32L5xx_HAL/CMSIS/Device/ST/STM32L5xx/Source/Templates/iar/linker/stm32l562xx_sram_s.icf
@@ -11,7 +11,7 @@ define symbol __ICFEDIT_region_RAM_end__   = 0x30017EFF;
 
 /*-Sizes-*/
 define symbol __ICFEDIT_size_cstack__ = 0x400;
-define symbol __ICFEDIT_size_heap__   = 0x200;
+define symbol __ICFEDIT_size_heap__   = 0x000;
 /**** End of ICF editor section. ###ICF###*/
 
 define symbol __region_ROM_NSC_start__   = 0;