FreeCalypso > hg > freecalypso-tools
view rvinterf/etmsync/memcmd.c @ 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 |
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/* * User commands for reading memory regions and Calypso die ID via ETM */ #include <sys/types.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include "etm.h" #include "tm3.h" #include "limits.h" #include "localtypes.h" #include "exitcodes.h" static void memdump_line(addr, buf, len) u32 addr; u_char *buf; { int i, c; printf("%08X: ", addr); for (i = 0; i < 16; i++) { if (i < len) printf("%02X ", buf[i]); else fputs(" ", stdout); if (i == 7 || i == 15) putchar(' '); } for (i = 0; i < len; i++) { c = buf[i]; if (c < ' ' || c > '~') c = '.'; putchar(c); } putchar('\n'); } cmd_memdump(argc, argv) char **argv; { u_char databuf[MAX_MEMREAD_BYTES]; u32 memaddr; int rc, sz, off, l; memaddr = strtoul(argv[1], 0, 16); sz = strtoul(argv[2], 0, 16); rc = do_memory_read(memaddr, databuf, sz); if (rc) return(rc); for (off = 0; off < sz; off += 16) { l = sz - off; if (l > 16) l = 16; memdump_line(memaddr + off, databuf + off, l); } return(0); } cmd_omemdump(argc, argv) char **argv; { u_char databuf[TM3_MEMREAD_MAX]; u32 memaddr; int rc, sz, off, l; memaddr = strtoul(argv[1], 0, 16); sz = strtoul(argv[2], 0, 16); rc = do_memory_read_tm3(memaddr, databuf, sz); if (rc) return(rc); for (off = 0; off < sz; off += 16) { l = sz - off; if (l > 16) l = 16; memdump_line(memaddr + off, databuf + off, l); } return(0); } cmd_dieid() { u_char buf[8]; int rc; rc = do_dieid_read(buf); if (rc) return(rc); printf("%02X %02X %02X %02X %02X %02X %02X %02X\n", buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7]); return(0); }