FreeCalypso > hg > freecalypso-tools

annotate target-utils/libload/cmd_blankchk.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 e7502631a0f9
children
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1 /*
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2 * Flash blank check command
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3 */
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4
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5 #include <sys/types.h>
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6 #include "types.h"
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7
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8 void
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9 cmd_blankchk(argbulk)
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10 char *argbulk;
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11 {
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12 char *argv[3];
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13 u_long start, length;
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14 u_long addr;
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15 int c;
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16
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17 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
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18 return;
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19 if (parse_hexarg(argv[0], 8, &start) < 0) {
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20 printf("ERROR: arg1 must be a valid 32-bit hex address\n");
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21 return;
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22 }
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23 if (parse_hexarg(argv[1], 8, &length) < 0) {
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24 printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n");
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25 return;
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26 }
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27 for (addr = start; addr < start + length; addr++) {
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28 c = *(volatile u8 *)addr;
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29 if (c != 0xFF) {
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30 printf("Not blank: %02X at %08X\n", c, addr);
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31 return;
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32 }
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33 }
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34 printf("OK\n");
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35 }