Serial flash loader, Boot loader, LM Flash pogrammer PP090329

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2 Winner 2

3 Serial flash loader, Boot loader, LM Flash pogrammer

4 Stellaris Serial Flash Loader In-System Programming Options Small piece of code that allows programming of the flash without the need for a debugger interface. All Stellaris MCUs ship with this pre-loaded in flash Interface options include UART or SSI Luminary Micro supplies a Windows application (GUI or command line) that makes full use of all commands supported by the serial flash loader (LMflash.exe) See application note AN01242

5 SSI and UART connections

6 Command Definitions COMMAND_PING (0x20) COMMAND_GET_STATUS (0x23) COMMAND_DOWNLOAD (0x21) COMMAND_SEND_DATA (0x24) COMMAND_RUN (0x22) COMMAND_RESET (0x25)

7 User application The first is to completely overwrite the flash loader with a new application. The second method involves programming the application to an address not used by the flash loader(0x800 or later), and then executing this application by issuing a run command.

8 Serial flash loader binary file Down the file serial_flash_loader.bin from web side Reprogram this BIN file to the device by LM flash programmer to do the testing

9 Reprogram serial_flash_loader.bin to device-1 Select the JTAG FTDI interface JTAG FTDI

10 Reprogram serial_flash_loader.bin to device-2 Select the serial_flash_loader.bin Program

11 Program the device via UART0 with serial flash loader-1 COM5? Auto baud rate Transfer size=60 *Use device manager to check your visual COM port

12 Program the device via UART0 with serial flash loader-2 Select your user code to download Address will start from 0x00.

13 Stellaris Boot Loader Small piece of code that can be programmed at the beginning of flash to act as an application loader Also used as an update mechanism for an application running on a Stellaris microcontroller. Interface options include UART (default), I 2 C, SSI, Ethernet, USB Included in the Stellaris Peripheral Driver Library with full applications examples See application note AN01248 Preloaded in ROM on select Stellaris Microcontrollers

14 User Applications On the Stellaris microcontrollers, minimum size of a flash block is 1024-byte,this is a1024-byte boundary, The boot loader at least need one flash block, so it requires that the application start at offset 2048 (0x0800) or more into the flash.

15 Connections UART0 (default) I 2 C SSI Ethernet USB(DFU)

16 Bl_config.h SW-LM3S-4781\boards\ek-lm3s8962\boot_serial #ifndef BL_CONFIG_H #define BL_CONFIG_H #define CRYSTAL_FREQ #define APP_START_ADDRESS 0x1000 #define STACK_SIZE 48 #define BUFFER_SIZE 20 #define UART_ENABLE_UPDATE #define UART_FIXED_BAUDRATE

17 Download boot_serial.bin via JTAG interface JTAG FTDI

18 Program the falsh via boot_serial with UART0 Select your code boot_demo1 for download Flash=boot_serial+ boot_demo1(user code) Offset 0x1000 *ISP function

19 Update the user code via call boot_loader with UART0-1 Update boot_demo1 with other user code,as boot_demo2. *IAP function

20 Update the user code via call boot_loader with UART0-2 Flash=boot_serial+ boot_demo2(user code) *IAP function

21 boot_eth Import the examples for the EK-LM3S8962 D:\ SW-LM3S-4781\boards\ek-lm3s8962\boot_eth The boot_eth is a small piece of code that can be programmed at the beginning of flash to act as an application loader as well as an update mechanism for an application running on a Stellaris Microcontroller.

22 Download boot_eth.bin via LM Flash programmer

23 Download boot_demo1.bin to flash via JTAG

24 Get current MAC address

25 Configure your PC to static IP

26 Configure the Client IP,MAC address

27 Program via Ethernet

28 Boot_usb Import the examples for the EK-LM3S3748 D:\ SW-LM3S-4781\boards\ek-lm3s3748 The boot_usb is a small piece of code that can be programmed at the beginning of flash to act as an application loader as well as an update mechanism for an application running on a Stellaris Microcontroller.

29 Download the boot_usb to EK-LM3S3748 Download the code boot_usb.bin via JTAG FTDI

30 Install USB windrivers for USB device_1 From SW-USB-windrivers-4781.zip

31 Install USB windrivers for USB device_2

32 Connect the USB device to your PC

33 Download your user code via DFU Usb_boot_demo2 is user code,which start address is from 0x1800

34 Exercise For boot_serial code,please change the UART0 to UART 1 to act as the default