FreeCalypso > hg > fc-tourmaline

annotate makefile-frags/m0-to-bin-c155 @ 261:841a848ba762

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SPI SWE: clear any pending boot-time interrupts in spi_init() Charger plug/unplug hw logic in the Iota ABB has no built-in debouncing, thus electrical contact bounce on the charging power connection interface produces a lot of charger plug/unplug interrupts. When we boot in charging mode (charging power present at boot time and is presumably the cause of Switch-ON), some bounce may occur between the initial Iota Switch-ON action and Calypso firmware booting. By clearing any accumulated ITSTATREG interrupts on boot, we prevent these pre-boot interrupts from generating charger plug/unplug events to FCHG, which would upset smooth from-boot charging.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 May 2021 02:49:05 +0000
parents 94ee95dad595
children
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94ee95dad595 makefile-frags: adapted from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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1 fwimage.intbin: fwimage.m0
94ee95dad595 makefile-frags: adapted from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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2 ../helpers/mokosrec2bin $< $@ FF
94ee95dad595 makefile-frags: adapted from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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3
94ee95dad595 makefile-frags: adapted from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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4 fwimage.bin: fwimage.intbin
94ee95dad595 makefile-frags: adapted from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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5 dd if=$< of=$@ bs=65536 skip=2
94ee95dad595 makefile-frags: adapted from Magnetite
Mychaela Falconia <falcon@freecalypso.org>
parents:
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6