Downloading .hex Files to Flash

After .hex files are generated, you need to download these files to Flash. Specific steps are provided below:

1. Configure Keil Flash programming algorithm.
   1. Copy the GR5xxx_16MB_Flash.FLM in SDK_Folder\build\keil to Keil_Folder\ARM\Flash.
   2. Click (Options for Target) on the Keil toolbar, open the Options for Target ‘GRxx_Soc’ dialog box, and select Debug tab. Click Settings on the right side of Use: J-LINK/J-TRACE Cortex.

      

   3. In the Cortex JLink/JTrace Target Driver Setup window, select Flash Download. In the Download Function pane, you can set the erase type and check optional items: Program, Verify, and Reset and Run. Default configurations of Keil are shown below:

      

      Note:

      If the Bootloader is in Mirror mode, you should change the erase type to Erase Full Chip.

   4. Click Add to add the GR5xxx_16MB_Flash.FLM to the Programming Algorithm.

      

   5. Configure RAM for Algorithm, which defines address space to load and implement the programming algorithm. Enter the start address of RAM in GR551x in the Start input field: 0x30000000. Enter 0xF000 in the Size input field.

      

   6. Click OK to save the settings.
2. Download the .hex file.

   After completing configuration, click (Download) on the Keil toolbar to download the .hex file to Flash. After download is completed, the following results are displayed in the Build Output window of Keil.