FreeCalypso > hg > fc-magnetite
view fcdev3b-hacks/mkromvecs.sh @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Jun 2020 03:17:43 +0000 |
parents | 8d9298e0823a |
children |
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#!/bin/sh set -e cp fwimage.bin fwromvecs.bin xxd -r -c 4 ../fcdev3b-hacks/romvecs.patch fwromvecs.bin ../helpers/mk-flash-script fwromvecs.bin 0 0x40000 > flash-romvecs