FreeCalypso > hg > freecalypso-tools
view libserial-orig/baudtab.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 | cb1ba53a1106 |
children | 39b39b546824 |
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/* * This module contains the table of baud rates supported * by this implementation of FreeCalypso libserial. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> #include <termios.h> #include "baudrate.h" struct baudrate baud_rate_table[] = { /* the first listed rate will be our default */ {"115200", B115200, 0}, {"57600", B57600, 1}, {"38400", B38400, 2}, {"19200", B19200, 4}, /* * Non-standard high baud rates remapped by CP2102 EEPROM programming * or by a hacky patch to the ftdi_sio Linux kernel driver to work * with FTDI adapters. */ {"812500", B921600, -1}, {"406250", B460800, -1}, {"203125", B230400, -1}, /* table search terminator */ {NULL, B0, -1}, }; struct baudrate * find_baudrate_by_name(srch_name) char *srch_name; { struct baudrate *br; for (br = baud_rate_table; br->name; br++) if (!strcmp(br->name, srch_name)) break; if (br->name) return(br); else { fprintf(stderr, "error: baud rate \"%s\" not known\n", srch_name); return(NULL); } }