Run %temp%/hack.batĢ6 Where do we put our code? Objdump binary extracted from mouse Flash memory starts at 0x, dump the binary relative to this address: objdump -b binary -marm -adjust-vma=0x D -C -Mforce-thumb sensei.bin > sensei.txt 80109ae: 2000 movs r0, # b0: 171c asrs r4, r3, # b2: 0000 movs r0, r b4: e394 b.n 0x80110e b6: 0800 lsrs r0, r0, # : 5300 strh r0, : 756b strb r3, : 2064 movs r0, #100 0圆4 Looks like we have plenty of space from 0x080109b6 to 0x We ll put our application at 0x08010a00 (so it is on a 2k boundary)Ģ7 Run Application at Custom Location The default linker for the STMicro projects links to memory location 0x But our app is being placed at location 0x08010a00 Need to edit 2 files to appropriately link to this non-default location STM32F103CBTx_FLASH.ld system_stm32f1xx.cĢ8 STM32F103CBTx_FLASH.ld /* Highest address of the user mode stack */ _estack = 0x /* was 0x20000a70 in sensei.bin - our code wants more stack */ /* Specify the memory areas */ MEMORY ") asm("msr PSP, r0") asm("ldr r0, STACK_SIZE") asm("msr MSP, r0") asm("ldr lr, ALL_F") asm("ldr r0, MOUSE_ENTRY") asm("bx r0") // ENDS OUR PROGRAM // load saved stack pointer into r0 // set stack pointer with value in r0 // restore registers we pushed onto stack // set the program stack pointer // load desired stack size into r0 // set stack pointer with value in r0 // set link register to default value 0xffffffff // load r0 with address of mouse entry point // Branch to original mouse codeĤ3 Storing Data in Assembly // DATA asm("mouse_entry: asm("hack_entry: asm("stack_ptr: asm("stack_size: asm("all_f: asm("feedbeef.word 0x ") // entry point of original mouse code.word 0x ") // entry point of this code.word 0x20004fd8") // the stack pointer address AFTER // pushing registers to stack.word 0x ") // stack pointer location for entry // into mouse code.word 0xffffffff") // default value of link register. env:nucleof401re platform ststm32 framework stm32cube board nucleof401re yes Using with STM32CubeMX At the moment there is no seamless integration with projects generated by STM32CubeMX tool.
And thats it, youve done with installing the Nucleo board packages into the Arduino IDE.
This opens the Boards Manager, scroll down and navigate to the 'STM32 Core' package by ST-Microelectronics and install it. This organized as 16 blocks of 32 bytes starting at 0x1FFF 7800. Now Click on 'Tools', click on 'Board' a drop-down menu will be popped. It does however contain 512 bytes of user OTP (One time programmable) memory. Automatically type an encoded powershell script a. 1 Answer Sorted by: 1 The 32F401 does not have any EEPROM. Find empty space in mouse s binary and insert our applicationĢ5 Build payload to insert into mouse binary When connected: 1.
Build application that registers as a keyboard 3.