FreeCalypso > hg > freecalypso-tools
view target-utils/env/compalram.lds @ 497:74610c4f10f7
target-utils: added 10 ms delay at the end of abb_power_off()
The deosmification of the ABB access code (replacement of osmo_delay_ms()
bogus delays with correctly-timed ones, which are significantly shorter)
had one annoying side effect: when executing the poweroff command from
any of the programs, one last '=' prompt character was being sent (and
received by the x86 host) as the Calypso board powers off. With delays
being shorter now, the abb_power_off() function was returning and the
standalone program's main loop was printing its prompt before the Iota chip
fully executed the switch-off sequence!
I thought about inserting an endless tight loop at the end of the
abb_power_off() function, but the implemented solution of a 10 ms delay
is a little nicer IMO because if the DEVOFF operation doesn't happen for
some reason in a manual hacking scenario, there won't be an artificial
blocker in the form of a tight loop keeping us from further poking around.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 25 May 2019 20:44:05 +0000 |
parents | 21eec7569eb8 |
children |
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OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") OUTPUT_ARCH(arm) ENTRY(_entry) SECTIONS { /* code */ . = 0x800100; .text : { /* regular code */ *(.text*) /* gcc voodoo */ *(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx) . = ALIGN(4); } /* read-only data */ . = ALIGN(4); .rodata : { *(.rodata*) } /* initialized data */ . = ALIGN(4); .data : { *(.data) } PROVIDE(edata = .); /* magic signature for C139/140 bootloader */ .magic 0x803ce0 : { LONG(0x34303031) } /* uninitialized data */ .bss (NOLOAD) : { . = ALIGN(4); __bss_start = .; *(.bss) } . = ALIGN(4); __bss_end = .; /* end of image */ _end = .; PROVIDE(end = .); } stack_bottom = 0x83FFFC;