diff --git a/.vscode/settings.json b/.vscode/settings.json
index 01bbeee79..68eccfcd2 100755
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -171,7 +171,9 @@
         "at_surf_f437_board_sdram.h": "c",
         "fs_types.h": "c",
         "u_rpc.h": "c",
-        "u_env.h": "c"
+        "u_env.h": "c",
+        "u_app_loader.h": "c",
+        "crt_arch_init.h": "c"
     },
     "cortex-debug.showRTOS": false,
     "cortex-debug.variableUseNaturalFormat": true,
diff --git a/armv7_8.cmake b/armv7_8.cmake
index cc74f5bdc..66a8fee5e 100644
--- a/armv7_8.cmake
+++ b/armv7_8.cmake
@@ -1,21 +1,21 @@
 message("========use armv7_8.cmake")
 
-set(CMAKE_C_FLAGS "-mcpu=${CONFIG_ARCH} -Ofast -g3 -mfloat-abi=${CONFIG_FLOAT_TYPE}  -mthumb  -D=MKRTOS \
+set(CMAKE_C_FLAGS "-mcpu=${CONFIG_ARCH} -O0 -g3 -mfloat-abi=${CONFIG_FLOAT_TYPE}  -mthumb  -DMKRTOS \
 -std=gnu11 -ffunction-sections -fdata-sections -fno-builtin -u=_printf_float \
--nostartfiles -nodefaultlibs -nostdlib -nostdinc -Xlinker -mthumb-interwork \
+-nostartfiles -nodefaultlibs -nostdlib -nostdinc -Xlinker \
 -fno-stack-protector -Wl,--gc-sections -D__ARM_ARCH_7M__ \
 -include ${CMAKE_SOURCE_DIR}/build/autoconf.h \
 " CACHE STRING "" FORCE)
 
-set(CMAKE_CXX_FLAGS "-mcpu=${CONFIG_ARCH} -Ofast -g3 -mfloat-abi=${CONFIG_FLOAT_TYPE} -mthumb -D=MKRTOS -std=c++11 \
+set(CMAKE_CXX_FLAGS "-mcpu=${CONFIG_ARCH} -Ofast -g3 -mfloat-abi=${CONFIG_FLOAT_TYPE} -mthumb -DMKRTOS -std=c++11 \
 -fmessage-length=0 -Xlinker --print-map -Wall -W -fno-stack-protector -g \ 
- -u=_printf_float  -D__ARM_ARCH_7M__ -mthumb-interwork \
+ -u=_printf_float  -D__ARM_ARCH_7M__  \
 -ffunction-sections -fdata-sections -fno-builtin -nostartfiles -nodefaultlibs -nostdlib -nostdinc -Xlinker \
 -include ${CMAKE_SOURCE_DIR}/build/autoconf.h \
 " CACHE STRING "" FORCE)
 
-set(CMAKE_ASM_FLAGS "-mcpu=${CONFIG_ARCH} -Ofast -g3 -mfloat-abi=${CONFIG_FLOAT_TYPE} -mthumb -D=MKRTOS \
--u=_printf_float -std=gnu11 -ffunction-sections -fdata-sections -fno-builtin -mthumb-interwork \
+set(CMAKE_ASM_FLAGS "-mcpu=${CONFIG_ARCH} -Ofast -g3 -mfloat-abi=${CONFIG_FLOAT_TYPE} -mthumb -DMKRTOS \
+-u=_printf_float -std=gnu11 -ffunction-sections -fdata-sections -fno-builtin \
 -nostartfiles -nodefaultlibs -nostdlib -nostdinc -Xlinker  -fno-stack-protector  -D__ARM_ARCH_7M__ \
 -include ${CMAKE_SOURCE_DIR}/build/autoconf.h \
 " CACHE STRING "" FORCE)
diff --git a/mkrtos_bootstrap/bsp/STM32F2/link.lds b/mkrtos_bootstrap/bsp/STM32F2/link.lds
index e78544635..070e698e6 100644
--- a/mkrtos_bootstrap/bsp/STM32F2/link.lds
+++ b/mkrtos_bootstrap/bsp/STM32F2/link.lds
@@ -1,10 +1,10 @@
 ENTRY(Reset_Handler)
-_estack = 0x20000000 + 0x800000;
+_estack = 0x20000000 + 0x2000000;
 _Min_Heap_Size = 0;
 _Min_Stack_Size = 0x300;
 MEMORY
 {
-RAM (xrw) : ORIGIN = 0x20000000 + 0x800000 - 0x4000, LENGTH = 0x4000 - 0x300
+RAM (xrw) : ORIGIN = 0x20000000 + 0x2000000 - 0x4000, LENGTH = 0x4000 - 0x300
 FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 0x2000
 }
 SECTIONS
diff --git a/mkrtos_configs/STM32F205_defconfig b/mkrtos_configs/STM32F205_defconfig
index 59e154d85..f3293f7b1 100644
--- a/mkrtos_configs/STM32F205_defconfig
+++ b/mkrtos_configs/STM32F205_defconfig
@@ -6,7 +6,7 @@ CONFIG_KNL_INFO=y
 CONFIG_SYS_TEXT_ADDR=0x8000000
 CONFIG_SYS_TEXT_SIZE=0x800000
 CONFIG_SYS_DATA_ADDR=0x20000000
-CONFIG_SYS_DATA_SIZE=0x800000
+CONFIG_SYS_DATA_SIZE=0x2000000
 CONFIG_BOOTSTRAP_TEXT_SIZE=0x2000
 CONFIG_DTBO_TEXT_SIZE=0x1000
 CONFIG_KNL_TEXT_SIZE=0x30000
@@ -37,77 +37,6 @@ CONFIG_SIG_THREAD_STACK_SIZE=512
 CONFIG_SIG_THREAD_PRIO=3
 # end of Sys util config
 
-#
-# DFS: device virtual file system
-#
-CONFIG_RT_USING_DFS=y
-CONFIG_DFS_USING_POSIX=y
-CONFIG_DFS_USING_WORKDIR=y
-# CONFIG_RT_USING_DFS_MNTTABLE is not set
-CONFIG_DFS_FD_MAX=16
-CONFIG_RT_USING_DFS_V1=y
-# CONFIG_RT_USING_DFS_V2 is not set
-CONFIG_DFS_FILESYSTEMS_MAX=4
-CONFIG_DFS_FILESYSTEM_TYPES_MAX=4
-# CONFIG_RT_USING_DFS_ELMFAT is not set
-CONFIG_RT_USING_DFS_DEVFS=y
-# CONFIG_RT_USING_DFS_ROMFS is not set
-# CONFIG_RT_USING_DFS_CROMFS is not set
-# CONFIG_RT_USING_DFS_RAMFS is not set
-# CONFIG_RT_USING_DFS_TMPFS is not set
-# CONFIG_RT_USING_DFS_MQUEUE is not set
-# end of DFS: device virtual file system
-
-#
-# Device Drivers
-#
-# CONFIG_RT_USING_DM is not set
-CONFIG_RT_USING_DEVICE_IPC=y
-CONFIG_RT_UNAMED_PIPE_NUMBER=64
-# CONFIG_RT_USING_SYSTEM_WORKQUEUE is not set
-CONFIG_RT_USING_SERIAL=y
-CONFIG_RT_USING_SERIAL_V1=y
-# CONFIG_RT_USING_SERIAL_V2 is not set
-CONFIG_RT_SERIAL_USING_DMA=y
-CONFIG_RT_SERIAL_RB_BUFSZ=64
-# CONFIG_RT_USING_CAN is not set
-# CONFIG_RT_USING_HWTIMER is not set
-# CONFIG_RT_USING_CPUTIME is not set
-# CONFIG_RT_USING_I2C is not set
-# CONFIG_RT_USING_PHY is not set
-CONFIG_RT_USING_PIN=y
-# CONFIG_RT_USING_ADC is not set
-# CONFIG_RT_USING_DAC is not set
-# CONFIG_RT_USING_NULL is not set
-# CONFIG_RT_USING_ZERO is not set
-# CONFIG_RT_USING_RANDOM is not set
-# CONFIG_RT_USING_PWM is not set
-# CONFIG_RT_USING_MTD_NOR is not set
-# CONFIG_RT_USING_MTD_NAND is not set
-# CONFIG_RT_USING_PM is not set
-# CONFIG_RT_USING_RTC is not set
-# CONFIG_RT_USING_SDIO is not set
-# CONFIG_RT_USING_SPI is not set
-# CONFIG_RT_USING_WDT is not set
-# CONFIG_RT_USING_AUDIO is not set
-# CONFIG_RT_USING_SENSOR is not set
-# CONFIG_RT_USING_TOUCH is not set
-# CONFIG_RT_USING_LCD is not set
-# CONFIG_RT_USING_HWCRYPTO is not set
-# CONFIG_RT_USING_PULSE_ENCODER is not set
-# CONFIG_RT_USING_INPUT_CAPTURE is not set
-# CONFIG_RT_USING_DEV_BUS is not set
-# CONFIG_RT_USING_WIFI is not set
-# CONFIG_RT_USING_VIRTIO is not set
-
-#
-# Using USB
-#
-# CONFIG_RT_USING_USB_HOST is not set
-# CONFIG_RT_USING_USB_DEVICE is not set
-# end of Using USB
-# end of Device Drivers
-
 CONFIG_CPU_TYPE="stm32f2"
 CONFIG_RTT_DIR="./"
 CONFIG_ARCH="cortex-m3"
diff --git a/mkrtos_knl/arch/cortex-m3/link.lds b/mkrtos_knl/arch/cortex-m3/link.lds
index 04c380480..4a905ad02 100644
--- a/mkrtos_knl/arch/cortex-m3/link.lds
+++ b/mkrtos_knl/arch/cortex-m3/link.lds
@@ -1,7 +1,7 @@
 ENTRY(Reset_Handler)
 MEMORY
 {
-  RAM (arw) : ORIGIN = 0x20000000, LENGTH = 0x800000
+  RAM (arw) : ORIGIN = 0x20000000, LENGTH = 0x2000000
   FLASH (arx) : ORIGIN = 0x8000000 + 0x2000 + 0x1000, LENGTH = 0x30000
 }
 SECTIONS
diff --git a/mkrtos_knl/drivers/stm32f2/uart/stm32f2_uart.c b/mkrtos_knl/drivers/stm32f2/uart/stm32f2_uart.c
index 412904aa1..8f572fa8e 100755
--- a/mkrtos_knl/drivers/stm32f2/uart/stm32f2_uart.c
+++ b/mkrtos_knl/drivers/stm32f2/uart/stm32f2_uart.c
@@ -125,7 +125,8 @@ static void uart_hardware_flow_rts(USART_TypeDef *USARTx, uint16_t flow)
     USARTx->CR3 = (uint16_t)tmpreg;
 }
 static uart_t uart = {
-    .baud = 115200};
+    .baud = 115200,
+};
 
 uart_t *uart_get_global(void)
 {
diff --git a/mkrtos_knl/inc/lib/assert.h b/mkrtos_knl/inc/lib/assert.h
index b78131b7f..80d5918ba 100755
--- a/mkrtos_knl/inc/lib/assert.h
+++ b/mkrtos_knl/inc/lib/assert.h
@@ -18,7 +18,7 @@
             printk("\n%s:%d %s\n", __FILE__, __LINE__, #cond); \
             dumpstack();                                       \
             mm_trace();                                        \
-            sys_reset();                                       \
+            /*sys_reset();*/                                       \
             while (1)                                          \
                 ;                                              \
         }                                                      \
diff --git a/mkrtos_user/lib/CMakeLists.txt b/mkrtos_user/lib/CMakeLists.txt
index 116649b8f..c35f412a0 100644
--- a/mkrtos_user/lib/CMakeLists.txt
+++ b/mkrtos_user/lib/CMakeLists.txt
@@ -7,8 +7,8 @@ if (${ARCH_NAME} STREQUAL "armv7_8m")
     add_subdirectory(mr)
     # add_subdirectory(at_device)
 elseif(${CONFIG_ARCH} STREQUAL "aarch64")
-    add_subdirectory(mkrtos-musl)
 endif()
+add_subdirectory(mkrtos-musl)
 add_subdirectory(sys)
 add_subdirectory(sys_util)
 add_subdirectory(util)
diff --git a/mkrtos_user/lib/letter-shell/demo/mkrtos/shell_port.c b/mkrtos_user/lib/letter-shell/demo/mkrtos/shell_port.c
index 62e641964..fd679198c 100644
--- a/mkrtos_user/lib/letter-shell/demo/mkrtos/shell_port.c
+++ b/mkrtos_user/lib/letter-shell/demo/mkrtos/shell_port.c
@@ -27,7 +27,7 @@
 #include "u_sleep.h"
 static Shell shell;
 static ShellFs shellFs;
-static char shellBuffer[256];
+static char shellBuffer[512];
 // static char shellPathBuffer[128] = "/";
 
 /**
diff --git a/mkrtos_user/lib/mlibc/CMakeLists.txt b/mkrtos_user/lib/mlibc/CMakeLists.txt
index 0062a3887..47cb7ac21 100644
--- a/mkrtos_user/lib/mlibc/CMakeLists.txt
+++ b/mkrtos_user/lib/mlibc/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.13)
 
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w -D_XOPEN_SOURCE=700 ")
-set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -w -D_XOPEN_SOURCE=700 ")
+set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -w -D_XOPEN_SOURCE=700 -Wa,-mimplicit-it=thumb ")
 
 file(GLOB_RECURSE deps
 src/*.C
diff --git a/mkrtos_user/lib/mlibc/src/setjmp/arm/longjmp.S b/mkrtos_user/lib/mlibc/src/setjmp/arm/longjmp.S
index 0cb3de159..72944b1db 100644
--- a/mkrtos_user/lib/mlibc/src/setjmp/arm/longjmp.S
+++ b/mkrtos_user/lib/mlibc/src/setjmp/arm/longjmp.S
@@ -7,15 +7,15 @@ _longjmp:
 longjmp:
 	mov ip,r0
 	movs r0,r1
-	it		eq
 	moveq r0,#1
 	ldmia ip!, {v1,v2,v3,v4,v5,v6,sl,fp}
 	ldmia ip!, {r2,lr}
 	mov sp,r2
 
-	adr r1,1f
-	ldr r2,1f
-	ldr r1,[r1,r2]
+	//adr r1,1f
+	//ldr r2,1f
+	//ldr r1,[r1,r2]
+	mov r1, #0
 
 #if __ARM_ARCH < 8
 	tst r1,#0x260
@@ -23,12 +23,12 @@ longjmp:
 	// HWCAP_ARM_FPA
 	tst r1,#0x20
 	beq 2f
-//	ldc p2, cr4, [ip], #48
+	ldc p2, cr4, [ip], #48
 #endif
 2:	tst r1,#0x40
 	beq 2f
-//	.fpu vfp
-//	vldmia ip!, {d8-d15}
+	.fpu vfp
+	vldmia ip!, {d8-d15}
 	.fpu softvfp
 	.eabi_attribute 10, 0
 	.eabi_attribute 27, 0
@@ -36,12 +36,12 @@ longjmp:
 	// HWCAP_ARM_IWMMXT
 2:	tst r1,#0x200
 	beq 3f
-//	ldcl p1, cr10, [ip], #8
-//	ldcl p1, cr11, [ip], #8
-//	ldcl p1, cr12, [ip], #8
-//	ldcl p1, cr13, [ip], #8
-//	ldcl p1, cr14, [ip], #8
-//	ldcl p1, cr15, [ip], #8
+	ldcl p1, cr10, [ip], #8
+	ldcl p1, cr11, [ip], #8
+	ldcl p1, cr12, [ip], #8
+	ldcl p1, cr13, [ip], #8
+	ldcl p1, cr14, [ip], #8
+	ldcl p1, cr15, [ip], #8
 #endif
 2:
 3:	bx lr
diff --git a/mkrtos_user/lib/mlibc/src/setjmp/arm/setjmp.S b/mkrtos_user/lib/mlibc/src/setjmp/arm/setjmp.S
index ddbc6aba3..b574fc848 100644
--- a/mkrtos_user/lib/mlibc/src/setjmp/arm/setjmp.S
+++ b/mkrtos_user/lib/mlibc/src/setjmp/arm/setjmp.S
@@ -14,9 +14,10 @@ setjmp:
 	stmia ip!,{r2,lr}
 	mov r0,#0
 
-	adr r1,1f
-	ldr r2,1f
-	ldr r1,[r1,r2]
+	//adr r1,1f
+	//ldr r2,1f
+	//ldr r1,[r1,r2]
+	mov r1, #0
 
 #if __ARM_ARCH < 8
 	tst r1,#0x260
@@ -24,12 +25,12 @@ setjmp:
 	// HWCAP_ARM_FPA
 	tst r1,#0x20
 	beq 2f
-//	stc p2, cr4, [ip], #48
+	stc p2, cr4, [ip], #48
 #endif
 2:	tst r1,#0x40
 	beq 2f
-//	.fpu vfp
-//	vstmia ip!, {d8-d15}
+	.fpu vfp
+	vstmia ip!, {d8-d15}
 	.fpu softvfp
 	.eabi_attribute 10, 0
 	.eabi_attribute 27, 0
@@ -37,12 +38,12 @@ setjmp:
 	// HWCAP_ARM_IWMMXT
 2:	tst r1,#0x200
 	beq 3f
-//	stcl p1, cr10, [ip], #8
-//	stcl p1, cr11, [ip], #8
-//	stcl p1, cr12, [ip], #8
-//	stcl p1, cr13, [ip], #8
-//	stcl p1, cr14, [ip], #8
-//	stcl p1, cr15, [ip], #8
+	stcl p1, cr10, [ip], #8
+	stcl p1, cr11, [ip], #8
+	stcl p1, cr12, [ip], #8
+	stcl p1, cr13, [ip], #8
+	stcl p1, cr14, [ip], #8
+	stcl p1, cr15, [ip], #8
 #endif
 2:
 3:	bx lr
diff --git a/mkrtos_user/lib/sys_svr/src/fs_cli.c b/mkrtos_user/lib/sys_svr/src/fs_cli.c
index f2126d299..8631cf243 100644
--- a/mkrtos_user/lib/sys_svr/src/fs_cli.c
+++ b/mkrtos_user/lib/sys_svr/src/fs_cli.c
@@ -24,7 +24,11 @@ sd_t fs_open(const char *path, int flags, int mode)
 
     if (ret < 0)
     {
-        return ret;
+        ret = ns_query(path, &hd, 0x0);
+        if (ret < 0)
+        {
+            return ret;
+        }
     }
 
     rpc_ref_file_array_t rpc_path = {
diff --git a/mkrtos_user/lib/sys_util/src/u_app_loader.c b/mkrtos_user/lib/sys_util/src/u_app_loader.c
index 54ae04d57..b5520b42a 100644
--- a/mkrtos_user/lib/sys_util/src/u_app_loader.c
+++ b/mkrtos_user/lib/sys_util/src/u_app_loader.c
@@ -19,6 +19,7 @@
 #include "cpiofs.h"
 #include "u_env.h"
 #include "u_sys.h"
+
 #include <assert.h>
 #include <string.h>
 #include <elf.h>
@@ -125,6 +126,10 @@ int app_load(const char *name, uenv_t *cur_env, pid_t *pid,
     {
         return -ENOENT;
     }
+    // for (int i = 0; i < arg_cn; i++)
+    // {
+    //     printf("argv[%d]:%s\n", i, argv[i]);
+    // }
     int type;
     umword_t addr;
     int ret = cpio_find_file((umword_t)sys_info.bootfs_start_addr, (umword_t)(-1), name, NULL, &type, &addr);
@@ -254,28 +259,26 @@ int app_load(const char *name, uenv_t *cur_env, pid_t *pid,
         .rev2 = HANDLER_INVALID,
     };
     umword_t *app_env;
-    char *cp_args;
-    char *cp_envp;
+    char *cp_args[8/*FIXME:*/];
+    char *cp_envp[8];
+    size_t params_envp_len = 0;
 
     app_env = app_stack_push_array(hd_task, &usp_top, (uint8_t *)(&uenv), sizeof(uenv));
     for (int i = 0; i < arg_cn; i++)
     {
-        cp_args = app_stack_push_str(hd_task, &usp_top, argv[i]);
-        if ((ALIGN(strlen(argv[i]) + 1, sizeof(void *)) / sizeof(void *)) % 2)
-        {
-            app_stack_push_umword(hd_task, &usp_top, 0);
-        }
-        printf("app_load 1 cp_args:%p\n", cp_args);
+        cp_args[i] = app_stack_push_str(hd_task, &usp_top, argv[i]);
+        params_envp_len += ALIGN(strlen(argv[i]) + 1, sizeof(void *));
+        printf("app_load 1 cp_args:%p\n", cp_args[i]);
     }
     for (int i = 0; i < envp_cn; i++)
     {
-        cp_envp = app_stack_push_str(hd_task, &usp_top, envp[i]);
-        if ((ALIGN(strlen(argv[i]) + 1, sizeof(void *)) / sizeof(void *)) % 2)
-        {
-            app_stack_push_umword(hd_task, &usp_top, 0);
-        }
+        cp_envp[i] = app_stack_push_str(hd_task, &usp_top, envp[i]);
+        params_envp_len += ALIGN(strlen(argv[i]) + 1, sizeof(void *));
+    }
+    if ((umword_t)usp_top & 0x7UL)
+    {
+        usp_top = (umword_t *)((umword_t)usp_top & ~0x7UL);
     }
-
     app_stack_push_umword(hd_task, &usp_top, 0);
     if ((arg_cn + envp_cn) & 0x1) // 参数是奇数是，多添加一个
     {
@@ -289,31 +292,15 @@ int app_load(const char *name, uenv_t *cur_env, pid_t *pid,
     app_stack_push_umword(hd_task, &usp_top, (umword_t)AT_PAGESZ);
 
     app_stack_push_umword(hd_task, &usp_top, 0);
-    for (int i = 0; i < envp_cn; i++)
+    for (int i = envp_cn - 1; i >= 0; i--)
     {
-        app_stack_push_umword(hd_task, &usp_top, (umword_t)cp_envp);
-        cp_envp += ALIGN(strlen(envp[i]), sizeof(void *));
-        if ((ALIGN(strlen(envp[i]) + 1, sizeof(void *)) / sizeof(void *)) % 2)
-        {
-            cp_envp += sizeof(void *);
-        }
+        app_stack_push_umword(hd_task, &usp_top, (umword_t)cp_envp[i]);
     }
-    if (arg_cn)
+    app_stack_push_umword(hd_task, &usp_top, 0);
+    for (int i = arg_cn - 1; i >= 0; i--)
     {
-        app_stack_push_umword(hd_task, &usp_top, 0);
-        for (int i = 0; i < arg_cn; i++)
-        {
-            if (i != 0)
-            {
-                if ((ALIGN(strlen(argv[i]) + 1, sizeof(void *)) / sizeof(void *)) % 2)
-                {
-                    cp_args += sizeof(void *);
-                }
-            }
-            printf("app_load 2 cp_args:%p\n", cp_args);
-            app_stack_push_umword(hd_task, &usp_top, (umword_t)cp_args);
-            cp_args += ALIGN(strlen(argv[i]) + 1, sizeof(void *));
-        }
+        printf("app_load 2 cp_args:%p\n", cp_args[i]);
+        app_stack_push_umword(hd_task, &usp_top, (umword_t)cp_args[i]);
     }
     app_stack_push_umword(hd_task, &usp_top, arg_cn);
 
diff --git a/mkrtos_user/server/fs/CMakeLists.txt b/mkrtos_user/server/fs/CMakeLists.txt
index cc4e7e470..577266385 100644
--- a/mkrtos_user/server/fs/CMakeLists.txt
+++ b/mkrtos_user/server/fs/CMakeLists.txt
@@ -2,5 +2,5 @@ cmake_minimum_required(VERSION 3.13)
 
 
 add_subdirectory(cpiofs)
-# add_subdirectory(fatfs)
+add_subdirectory(fatfs)
 # add_subdirectory(lxext4)
diff --git a/mkrtos_user/server/fs/fatfs/CMakeLists.txt b/mkrtos_user/server/fs/fatfs/CMakeLists.txt
index 5d19c33a1..79cfc3a6e 100644
--- a/mkrtos_user/server/fs/fatfs/CMakeLists.txt
+++ b/mkrtos_user/server/fs/fatfs/CMakeLists.txt
@@ -66,8 +66,8 @@ add_custom_target(
     ${CMAKE_SIZE} fatfs.elf
     COMMAND
     mkdir -p ${CMAKE_SOURCE_DIR}/build/output/cpio
-    # COMMAND
-    # cp fatfs.bin ${CMAKE_SOURCE_DIR}/build/output/cpio/fatfs
+    COMMAND
+    cp fatfs.bin ${CMAKE_SOURCE_DIR}/build/output/cpio/fatfs
     COMMAND
     cp fatfs.elf ${CMAKE_SOURCE_DIR}/build/output/cpio/fatfs.elf
 )
diff --git a/mkrtos_user/server/fs/fatfs/main.c b/mkrtos_user/server/fs/fatfs/main.c
index 1f0f63198..a5854c0c8 100644
--- a/mkrtos_user/server/fs/fatfs/main.c
+++ b/mkrtos_user/server/fs/fatfs/main.c
@@ -3,13 +3,22 @@
 #include "u_rpc_svr.h"
 #include "u_prot.h"
 #include "u_env.h"
-#include "u_drv.h"
 #include "cons_cli.h"
 #include "fs_rpc.h"
 #include <ff.h>
 #include <stdio.h>
 #include <assert.h>
 #include <stdlib.h>
+#include <u_fast_ipc.h>
+#define STACK_COM_ITME_SIZE (2048)
+ATTR_ALIGN(8)
+uint8_t stack_coms[STACK_COM_ITME_SIZE];
+uint8_t msg_buf_coms[MSG_BUG_LEN];
+void fast_ipc_init(void)
+{
+    u_fast_ipc_init(stack_coms, msg_buf_coms, 1, STACK_COM_ITME_SIZE);
+}
+
 static FATFS fs;
 static MKFS_PARM defopt = {FM_ANY, 0, 0, 0};
 
@@ -17,6 +26,7 @@ int main(int args, char *argv[])
 {
     obj_handler_t hd;
     int ret;
+    fast_ipc_init();
 
     ret = rpc_meta_init(THREAD_MAIN, &hd);
     assert(ret >= 0);
diff --git a/mkrtos_user/server/init/src/heap_stack.c b/mkrtos_user/server/init/src/heap_stack.c
index 11c8f0cab..5994e4978 100644
--- a/mkrtos_user/server/init/src/heap_stack.c
+++ b/mkrtos_user/server/init/src/heap_stack.c
@@ -15,7 +15,7 @@
 #define STACK_SIZE (2 * 1024) //(1024 + 256)
 #else
 #define HEAP_SIZE (2 * 1024)
-#define STACK_SIZE (4 * 1024) //(1024 + 256)
+#define STACK_SIZE (3 * 1024) //(1024 + 256)
 #endif
 
 #if defined(__CC_ARM)
diff --git a/mkrtos_user/server/init/src/init.cfg b/mkrtos_user/server/init/src/init.cfg
index f2fcc0de6..d650f4d8e 100644
--- a/mkrtos_user/server/init/src/init.cfg
+++ b/mkrtos_user/server/init/src/init.cfg
@@ -9,4 +9,4 @@ cpiofs -m /bin
 # snd
 # net
 # nes
-sh      
\ No newline at end of file
+sh
\ No newline at end of file
diff --git a/mkrtos_user/server/init/src/parse_cfg.c b/mkrtos_user/server/init/src/parse_cfg.c
index 059704f8a..7f7c5776c 100644
--- a/mkrtos_user/server/init/src/parse_cfg.c
+++ b/mkrtos_user/server/init/src/parse_cfg.c
@@ -23,9 +23,7 @@
 #include <u_hd_man.h>
 #include <stdlib.h>
 
-#define CMD_LEN 64                                          //!< 命令行最大长度
-#define CMD_PARAMS_CN 8                                     //!< 参数个数
-#define CMD_PARAMS_ITEM_LEN 16                              //!< 每个参数的最大长度
+#include <parse_cfg.h>
 static char cmd_line[CMD_LEN];                              //!< 命令行
 static char cmd_params[CMD_PARAMS_CN][CMD_PARAMS_ITEM_LEN]; //!< 参数数组
 static int cmd_params_off[CMD_PARAMS_CN];                   //!< 参数偏移量
@@ -79,6 +77,8 @@ static int parse_cfg_cmd_line(void)
         {
             cmd_line[i] = 0;
             mem_block = atol(&cmd_line[i + 1]); // 获取应用使用的内存块
+            cmd_params_num--;
+            break;
         }
     }
     return mem_block;
diff --git a/mkrtos_user/server/init/src/parse_cfg.h b/mkrtos_user/server/init/src/parse_cfg.h
index a56f0a002..946759b83 100644
--- a/mkrtos_user/server/init/src/parse_cfg.h
+++ b/mkrtos_user/server/init/src/parse_cfg.h
@@ -11,6 +11,8 @@
  */
 
 #include <u_env.h>
-
+#define CMD_LEN 64                                          //!< 命令行最大长度
+#define CMD_PARAMS_CN 8                                     //!< 参数个数
+#define CMD_PARAMS_ITEM_LEN 16                              //!< 每个参数的最大长度
 void parse_cfg_init(void);
 int parse_cfg(const char *parse_cfg_file_name, uenv_t *env);
diff --git a/mkrtos_user/server/init/src/pm.c b/mkrtos_user/server/init/src/pm.c
index a811b2a3d..920cb2e24 100644
--- a/mkrtos_user/server/init/src/pm.c
+++ b/mkrtos_user/server/init/src/pm.c
@@ -18,10 +18,12 @@
 #include "u_hd_man.h"
 #include "u_sig.h"
 #include "pm.h"
+#include "parse_cfg.h"
 #include <errno.h>
 #include <malloc.h>
 #include <stdio.h>
 #include <assert.h>
+#include <string.h>
 static pm_t pm;
 
 void pm_init(void)
@@ -210,13 +212,27 @@ int pm_rpc_run_app(const char *path, int flags, char *params, int params_len)
     pid_t pid;
     int ret;
     printf("pm run %s.\n", path);
-    char *args[] = {
+    char *args[CMD_PARAMS_CN] = {
         (char *)path,
-        NULL, /*TODO:支持传递参数*/
     };
     obj_handler_t sem;
+    int i;
+    int j = 0;
 
-    ret = app_load(path, u_get_global_env(), &pid, args, 1, NULL, 0, &sem, 0);
+    for (i = 1; *params && i < CMD_PARAMS_CN; i++)
+    {
+        if (j >= params_len)
+        {
+            break;
+        }
+        args[i] = params;
+        printf("params[%d]: %s\n", i, params);
+        j += strlen(params) + 1;
+        params += strlen(params) + 1;
+    }
+
+    ret = app_load(path, u_get_global_env(), &pid, args, i,
+                   NULL, 0, &sem, 0);
     if (ret > 0)
     {
         if (!(flags & PM_APP_BG_RUN))
diff --git a/mkrtos_user/server/shell/src/heap_stack.c b/mkrtos_user/server/shell/src/heap_stack.c
index 994a07c10..2f0100348 100644
--- a/mkrtos_user/server/shell/src/heap_stack.c
+++ b/mkrtos_user/server/shell/src/heap_stack.c
@@ -1,7 +1,7 @@
 #include <u_util.h>
 #if !IS_ENABLED(CONFIG_MMU)
-#define HEAP_SIZE 32 * 1024
-#define STACK_SIZE (3 * 1024)
+#define HEAP_SIZE 16 * 1024
+#define STACK_SIZE (2 * 1024)
 
 #if defined(__CC_ARM)
 #define HEAP_ATTR SECTION("HEAP") __attribute__((zero_init))
diff --git a/mkrtos_user/user/app/CMakeLists.txt b/mkrtos_user/user/app/CMakeLists.txt
index 2a7717bc4..bde80d14a 100644
--- a/mkrtos_user/user/app/CMakeLists.txt
+++ b/mkrtos_user/user/app/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.13)
 
 add_subdirectory(coremark)
 add_subdirectory(tinycc-arm-thumb)
-add_subdirectory(app_test)
+add_subdirectory(test)
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${CONFIG_BOARD_NAME})
     add_subdirectory(${CONFIG_BOARD_NAME})
 endif()
diff --git a/mkrtos_user/user/app/app_test/CMakeLists.txt b/mkrtos_user/user/app/test/CMakeLists.txt
similarity index 62%
rename from mkrtos_user/user/app/app_test/CMakeLists.txt
rename to mkrtos_user/user/app/test/CMakeLists.txt
index 22dea6f0b..9d98b0a76 100644
--- a/mkrtos_user/user/app/app_test/CMakeLists.txt
+++ b/mkrtos_user/user/app/test/CMakeLists.txt
@@ -7,12 +7,12 @@ file(
 )
 
 add_executable(
-    app_test.elf
+    tst.elf
     ${deps}
     ${START_SRC}
 )
 target_link_libraries(
-    app_test.elf
+    tst.elf
     PUBLIC
     -Bstatic
     ${LIBC_NAME}
@@ -26,7 +26,7 @@ target_link_libraries(
     ${GCC_LIB_PATH}/libgcc.a
 )
 target_include_directories(
-    app_test.elf
+    tst.elf
     PUBLIC
     ${CMAKE_SOURCE_DIR}/mkrtos_user/lib/sys/inc
     ${CMAKE_SOURCE_DIR}/mkrtos_user/lib/sys_svr/inc
@@ -38,31 +38,31 @@ target_include_directories(
     ${CMAKE_SOURCE_DIR}/mkrtos_user/user/drv/lib/mk_display
 )
 add_dependencies(
-    app_test.elf
+    tst.elf
     ${START_LIB}
     sys
     sys_util
 )
 set_target_properties(
-    app_test.elf PROPERTIES LINK_FLAGS
+    tst.elf PROPERTIES LINK_FLAGS
     "-T ${CMAKE_CURRENT_LIST_DIR}/${ARCH_NAME}/link.lds ${CORTEX_M_LINK_FLAGS} --gc-section  -no-dynamic-linker "
     #--no-warn-rwx-segments
 )
 add_custom_target(
-    app_test_dump ALL
+    tst_dump ALL
     COMMAND
-    ${CMAKE_OBJDUMP} -s -S app_test.elf > ${CMAKE_SOURCE_DIR}/build/output/app_test.S
+    ${CMAKE_OBJDUMP} -s -S tst.elf > ${CMAKE_SOURCE_DIR}/build/output/tst.S
     COMMAND
-    ${CMAKE_READELF} -a app_test.elf > ${CMAKE_SOURCE_DIR}/build/output/app_test.txt
+    ${CMAKE_READELF} -a tst.elf > ${CMAKE_SOURCE_DIR}/build/output/tst.txt
     COMMAND
-    ${CMAKE_OBJCOPY} -O binary -S app_test.elf app_test.bin
+    ${CMAKE_OBJCOPY} -O binary -S tst.elf tst.bin
     COMMAND
-    ${CMAKE_SIZE} app_test.elf
+    ${CMAKE_SIZE} tst.elf
     COMMAND
-    ${CMAKE_COMMAND} -E copy app_test.bin ${CMAKE_SOURCE_DIR}/build/output/cpio/app_test
+    ${CMAKE_COMMAND} -E copy tst.bin ${CMAKE_SOURCE_DIR}/build/output/cpio/tst
     COMMAND
-    cp app_test.elf ${CMAKE_SOURCE_DIR}/build/output/app_test.elf
+    cp tst.elf ${CMAKE_SOURCE_DIR}/build/output/tst.elf
 )
 
-add_dependencies(app_test_dump app_test.elf)
+add_dependencies(tst_dump tst.elf)
  
\ No newline at end of file
diff --git a/mkrtos_user/user/app/app_test/armv7_8m/link.lds b/mkrtos_user/user/app/test/armv7_8m/link.lds
similarity index 100%
rename from mkrtos_user/user/app/app_test/armv7_8m/link.lds
rename to mkrtos_user/user/app/test/armv7_8m/link.lds
diff --git a/mkrtos_user/user/app/app_test/heap_stack.c b/mkrtos_user/user/app/test/heap_stack.c
similarity index 100%
rename from mkrtos_user/user/app/app_test/heap_stack.c
rename to mkrtos_user/user/app/test/heap_stack.c
diff --git a/mkrtos_user/user/app/app_test/main.c b/mkrtos_user/user/app/test/main.c
similarity index 67%
rename from mkrtos_user/user/app/app_test/main.c
rename to mkrtos_user/user/app/test/main.c
index 864510de7..707d09331 100644
--- a/mkrtos_user/user/app/app_test/main.c
+++ b/mkrtos_user/user/app/test/main.c
@@ -9,6 +9,9 @@
 
 int main(int argc, char *argv[])
 {
-    printf("%s init..\n", argv[0]);
+    for (int i = 0; i < argc; i++)
+    {
+        printf("argv[%d]: %s\n", i, argv[i]);
+    }
     return 0;
 }
diff --git a/mkrtos_user/user/app/tinycc-arm-thumb/CMakeLists.txt b/mkrtos_user/user/app/tinycc-arm-thumb/CMakeLists.txt
index b801d6a88..10ac52ee1 100644
--- a/mkrtos_user/user/app/tinycc-arm-thumb/CMakeLists.txt
+++ b/mkrtos_user/user/app/tinycc-arm-thumb/CMakeLists.txt
@@ -76,6 +76,8 @@ add_custom_target(
     ${CMAKE_SIZE} tcc.elf
     COMMAND
     ${CMAKE_COMMAND} -E copy tcc.bin ${CMAKE_SOURCE_DIR}/build/output/cpio/tcc
+    COMMAND
+    ${CMAKE_COMMAND} -E copy tcc.elf ${CMAKE_SOURCE_DIR}/build/output/tcc.elf
 
 )
 if ((DEFINED CONFIG_ELF_LAUNCH) AND (CONFIG_ELF_LAUNCH STREQUAL "y"))
diff --git a/mkrtos_user/user/app/tinycc-arm-thumb/armv7_8m/heap_stack.c b/mkrtos_user/user/app/tinycc-arm-thumb/armv7_8m/heap_stack.c
index 909fd0668..e378f0cba 100644
--- a/mkrtos_user/user/app/tinycc-arm-thumb/armv7_8m/heap_stack.c
+++ b/mkrtos_user/user/app/tinycc-arm-thumb/armv7_8m/heap_stack.c
@@ -1,6 +1,6 @@
 
-#define HEAP_SIZE 1024*1024*3
-#define STACK_SIZE 8192
+#define HEAP_SIZE (1024*1024*8)
+#define STACK_SIZE (8192)
 
 #if defined(__CC_ARM)
 #define HEAP_ATTR SECTION("HEAP") __attribute__((zero_init))
diff --git a/mkrtos_user/user/app/tinycc-arm-thumb/tcc.c b/mkrtos_user/user/app/tinycc-arm-thumb/tcc.c
index 412d48e0f..bc6e5ac3a 100644
--- a/mkrtos_user/user/app/tinycc-arm-thumb/tcc.c
+++ b/mkrtos_user/user/app/tinycc-arm-thumb/tcc.c
@@ -255,11 +255,11 @@ char *fake_argv[] = {
     "-nostdinc",
     "-nostdlib",
     "-c",
-    "/mnt/1.c",
+    "/bin/1.c",
     "-o",
     "/mnt/a.out"
 };
-
+//tcc -nostdinc -nostdlib -c /bin/1.c -o /mnt/a.out
 int main(int argc0, char **argv0)
 {
     TCCState *s, *s1;
@@ -270,9 +270,13 @@ int main(int argc0, char **argv0)
     char **argv;
     FILE *ppfp = stdout;
 
+    for(int i=0;i<argc0;i++)
+    {
+        printf("%s \n", argv0[i]);
+    }
+    printf("\n");
 redo:
-    // argc = argc0, argv = argv0;
-    argc = 7, argv = fake_argv;
+    argc = argc0, argv = argv0;
     s = s1 = tcc_new();
     opt = tcc_parse_args(s, &argc, &argv, 1);