54 lines
2.0 KiB
Plaintext
54 lines
2.0 KiB
Plaintext
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Name:
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=====
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flash_selftest
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Description:
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============
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An example to test all onboard flash.
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Purpose:
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This example runs a series of test patterns on all instances of the device
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flash. It performs many of the same tests that the hardware BIST (built
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in self test) uses at production test.
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Results are saved in coded form to a defined data word (g_result) which
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tracks any failure. Further, g_result can be given an absolute address
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location so that an outside system will know where to find the results.
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Results output is also configurable such that the simplified results
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(pass/fail, done, etc.) can be output to GPIO bits.
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The test must be loaded and executed in SRAM. Therefore a J-Link Commander
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batch file is provided here to assist with that.
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Alternatively the program can be loaded with a debugger and run from there.
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Printing takes place over the ITM at 1M Baud.
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Additional Information:
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=======================
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Using the J-Link Commander batch file on an Apollo3 Blue EVB:
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- The Commander script file is one of either selftest_commander_gcc.jlink,
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selftest_commander_iar.jlink, or selftest_commander_keil.jlink.
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- Requires Segger J-Link v6.60 or later.
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- As shipped in the SDK, the J-Link Commander scripts should be correctly
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configured to run the given binary. If the test is modified, the commander
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script may need an update of the SP and PC. The first two word values in
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the vector table of your compiled binary determine the required values.
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- Use the following command line at a DOS prompt.
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jlink -CommanderScript selftest_commander_xxx.jlink
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- The flash self test stores results to address 0x10030000.
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0xFAE00000 = Pass, the flash tested good.
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0xFAE0xxxx = Fail, where xxxx is a failure code.
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- If USE_TIMER is enabled, the run time of the selftest is stored in two
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words at 0x10030004 and 0x1003008. The first word is the whole number
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of seconds, the second is the fractional part to 3 decimals. Therefore
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the two values show the total run time in the form: ss.fff
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******************************************************************************
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