FreeCalypso > hg > freecalypso-tools

annotate loadtools/compalram.c @ 497:74610c4f10f7

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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 8c011177adb9
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1 /*
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2 * This module contains the main() function for fc-compalram, a trivial
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3 * utility that feeds a binary download image to Compal's bootloader
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4 * and then switches into serial tty pass-through.
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5 */
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7 #include <stdio.h>
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8 #include <stdlib.h>
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10 char *target_ttydev;
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12 main(argc, argv)
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13 char **argv;
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14 {
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15 if (argc != 3) {
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16 fprintf(stderr, "usage: fc-compalram ttyport image.bin\n");
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17 exit(1);
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18 }
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19 target_ttydev = argv[1];
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20 set_compalstage_fullpath(argv[2]);
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22 open_serial_port(target_ttydev);
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23 perform_compal_stage();
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24 tty_passthru();
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25 exit(0);
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26 }