From 2589b176405ad5024f1f4d041efea5b179f152f6 Mon Sep 17 00:00:00 2001 From: MCUdude <hansibull@gmail.com> Date: Thu, 17 Feb 2022 11:24:59 +0100 Subject: [PATCH] Add support for memory "fill" mode Syntax: write <memtype> <start addr> <no. byte to write> <byte to write> ... --- src/term.c | 48 +++++++++++++++++++++++++++++++++++++----------- src/term.h | 4 ++++ 2 files changed, 41 insertions(+), 11 deletions(-) diff --git a/src/term.c b/src/term.c index 5c91931c..295ae612 100644 --- a/src/term.c +++ b/src/term.c @@ -336,11 +336,13 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p, unsigned char b; int rc; int werror; + int write_mode; AVRMEM * mem; if (argc < 4) { - avrdude_message(MSG_INFO, "Usage: write <memtype> <addr> <byte1> " - "<byte2> ... <byteN>\n"); + avrdude_message(MSG_INFO, + "Usage: write <memtype> <start addr> <data1> <data2> <dataN>\n" + " write <memtype> <start addr> <no. bytes> <data1> <dataN> <...>\n"); return -1; } @@ -368,8 +370,19 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p, return -1; } - /* number of bytes to write at the specified address */ - len = argc - 3; + // Figure out how many bytes to write to memory + if(strcmp(argv[5], "...") == 0) { + write_mode = WRITE_MODE_FILL; + len = strtoul(argv[3], &e, 0); + if (*e || (e == argv[3])) { + avrdude_message(MSG_INFO, "%s (write ...): can't parse address \"%s\"\n", + progname, argv[3]); + return -1; + } + } else { + write_mode = WRITE_MODE_STANDARD; + len = argc - 3; + } if ((addr + len) > maxsize) { avrdude_message(MSG_INFO, "%s (write): selected address and # bytes exceed " @@ -384,13 +397,26 @@ static int cmd_write(PROGRAMMER * pgm, struct avrpart * p, return -1; } - for (i=3; i<argc; i++) { - buf[i-3] = strtoul(argv[i], &e, 0); - if (*e || (e == argv[i])) { - avrdude_message(MSG_INFO, "%s (write): can't parse byte \"%s\"\n", - progname, argv[i]); - free(buf); - return -1; + if(write_mode == WRITE_MODE_STANDARD) { + for (i=3; i<argc; i++) { + buf[i-3] = strtoul(argv[i], &e, 0); + if (*e || (e == argv[i])) { + avrdude_message(MSG_INFO, "%s (write): can't parse byte \"%s\"\n", + progname, argv[i]); + free(buf); + return -1; + } + } + } else if(write_mode == WRITE_MODE_FILL) { + unsigned char fill_val = strtoul(argv[4], &e, 0); + if (*e || (e == argv[4])) { + avrdude_message(MSG_INFO, "%s (write ...): can't parse byte \"%s\"\n", + progname, argv[4]); + free(buf); + return -1; + } + for (i = 0; i < len; i++) { + buf[i] = fill_val; } } diff --git a/src/term.h b/src/term.h index fca3aac8..fc5ad4f4 100644 --- a/src/term.h +++ b/src/term.h @@ -27,6 +27,10 @@ extern "C" { #endif +// Macros for determining write mode +#define WRITE_MODE_STANDARD 0 +#define WRITE_MODE_FILL 1 + int terminal_mode(PROGRAMMER * pgm, struct avrpart * p); char * terminal_get_input(const char *prompt);