Ryan Malloy
3d2cd477b2
Firmware: Rewrite skywalker1.c for EEPROM boot experiment — tests whether I2C hardware controller works after FX2 boot ROM completes EEPROM load (bypassing the CPUCS restart that triggers BERR). Tools: - fw_load.py: Add I2C cleanup stub, pre-halt register flush, improved error handling and segment loading - eeprom_write.py: Add IHX→C2 EEPROM image converter (16KB format with length-prefixed segments, checksum) - eeprom_dump.py: Refactor for cleaner output, better hex display - skywalker_lib.py: Minor I2C register constant updates Docs: - EEPROM-RECOVERY.md: Four recovery options for soft-bricked device (SOIC clip, SDA pull-up, desolder, wait-for-timeout) - Master reference: Updated with EEPROM boot findings Status: EEPROM flash blocked — stock firmware I2C proxy returns pipe errors, host-side 0xA0 writes proven unable to drive peripheral bus. Device boot ROM intermittently hangs on EEPROM I2C read (~3-6% success).
17 lines
401 B
Makefile
17 lines
401 B
Makefile
FX2LIBDIR=fx2lib/
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BASENAME=skywalker1
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SOURCES=skywalker1.c
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A51_SOURCES=dscr.a51
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VID=0x09C0
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PID=0x0203
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CODE_SIZE=--code-size 0x3c00
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include $(FX2LIBDIR)lib/fx2.mk
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load: $(BUILDDIR)/$(BASENAME).bix
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../tools/fw_load.py load $(BUILDDIR)/$(BASENAME).ihx
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eeprom: $(BUILDDIR)/$(BASENAME).ihx
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python3 ../tools/eeprom_write.py convert $(BUILDDIR)/$(BASENAME).ihx \
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-o $(BUILDDIR)/$(BASENAME)_eeprom.bin
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