DA8xx SPI Flash writer for DSP only device

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DSP-based SPI writer (SPIwriter.out) 

• Locate the pa_bdk_da8xx_yymmdd.zip package in the unzipped "DA8xx SDK YYMMDD".
• Unzip the pa_bdk_da8xx_yymmdd.zip package. This will create a "bdk" directory, which contains both a pre-built executable and the source code of the 'SPI writer for DSP only devices'. You can either:
  • Build the SPI-writer executable from source code: In CCSv4, build the project in the bdk\spiflash\spiwriter folder to create SPIwriter.out
  • Or, use the pre-built executable: bdk\spiflash\spiwriter\SPIwriter.out

There's no real compelling reason to build SPIwriter.out - just use the prebuilt.

Receipe to use spiwriter.out

• If the DSKDA830 is powered-up, power it down.
• If the UI board is connected to the DSKDA830, make sure that the UI board's SW1 "BOOT DEVICE" switch is set to [0 0 0 0] for numbers [1 2 3 4] respectively (i.e., all 'OFF').

Pin #	1	2	3	4
Position	0	0	0	0

• Set SW2 ("BOOT") on the DSKDA830 (i.e., the main board) to boot the DA830 'from XDS':
  

ON-ON-ON-ON-OFF-OFF

• If you not already have a flashable image file (for example, pa-ais.bin), create one from the DSP executable (pa.out) using the AISgen tool (instructions here).
• Copy your image file (assumed to be named 'pa-ais.bin' hereafter) to some directory on your C: drive 
• Create a plain text file called “spiwriter.dat” in the root directory of your C: drive (C:\spiwriter.dat). The location and name of spiwriter.dat is critical to the execution of the spiwriter application (SPIwriter.out looks for apiwriter.dat only in C:\, and gives up if it's not found).
• Edit the contents of spiwriter.dat to be simply the complete path/filename of the flashable image file (e.g., c:\myImage\pa-ais.bin) followed by <space>  followed by "0". For example:

C:\work\ais\pa-ais.bin 0 

• Save the file 'C:\spiwriter.dat'
• Power-up the DSKDA830
• Open CCS4, launch the TI debugger, and connect to the c674x DSP.
• Load the spiwriter.out file to the DSP and run.
• The spiwriter application takes several minutes to complete.  Messages indicating operation will be displayed in the CCS console. Note that the 'Reading file' step takes quite a long time, on the order of minutes.  Following is a sample of the messages displayed:

C:\work\ais\pa-ais.bin 0x0
Input file name = C:\work\ais\pa-ais.bin, offset = 0
Reading file C:\work\ais\pa-ais.bin 
Reading Block  0 from file...
Writing Block  0 to flash...
Reading Block  1 from file...
Writing Block  1 to flash...
.......(omitted)..........
SPIFlash is written correctly :-)

• After successful completion, the console will display the message "SPIFlash is written correctly :-)".
• Select “Terminate All” from the “Target” menu and wait for the CCS4 debugger session to completely terminate
• Power-down the DA830 EVM.
• Set the BOOT-SW2 switch on the DSKDA830 to boot from the SPI flash:
  

OFF-ON-OFF-ON-OFF-OFF

• Power-up the DA830.  It should boot from your newly-flashed image.