• Atmel SAM4E Bootloader/VTOR executing new application
    I've written a boot loader for the Atmel SAM4E device which is working to a point, it can receive new application code via SPI, erase flash and write to flash, but I don't understand how to execute the...
  • ethernet mac address
    i am looking for a ethernet connection for my pump. which i am using a stm32f discovery board. for this i need a mac address. how can i get an mac address and how can i interface with the pump and control...
  • Where is M4 hardware breakpoint address?
    Hi I'm learning cortex m4 debug feature, I'm using stm32f407 discovery with openocd in ubuntu I'm trying to understad breakpoint feature, I can set breakpoint address in openocd and chip will stop...
  • Conflict, Register offset of GPIOx_BSRR of STM32F0x1/STM32F0x2/STM32F0x8
    Dear friends, Register offset of GPIOx_BSRR is shown as 0x18 (which looks to be true) in ST's Reference Manual (p163, en.DM00031936) while it is shown as 0x1A in "stm32f072xb.h" header file. It seems...
  • Value of "__initial_sp"
    Hello , I am new to ARM cortex M processors and while doing some coding on my board using KEIL i found that at location 0x0000_0000 my debugger shows the value "0x2000_0660" . Thats the value of the...