FreeCalypso > hg > freecalypso-tools
view loadtools/scripts/fcfam.config @ 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 | e7502631a0f9 |
children | 49ee210fc4fb |
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# This loadtool target configuration is intended to be applicable to all # original hardware designs created within the FreeCalypso project, # starting with FCDEV3B. Specifically, it should fit all targets that # satisfy the following criteria: # # The DBB chip is Calypso C035 # The RF block is Rita (26 MHz VCXO) # Spansion S71PL129NC0 used for flash and XRAM, copied from Pirelli DP-L10 # The 2nd flash chip select is wired to nCS2 # The following parameters go into the <p command sent to the boot ROM pll-config 4/1 # 26 MHz in, PLL&DSP @ 104 MHz, ARM @ 52 MHz rhea-cntl 0x00 # good for all Calypso platforms # The remaining settings are carried out via loadagent commands init-script cs2-4ws-8mb.init # Flash type and chip select base addresses flash pl129n 0x03000000 0x01800000 # Perform a Iota poweroff when we are done exit-mode iota-off