xdebug

commit 3671c5ff61aa38f971f4b095bcd029c82a7c56da
parent 72a26a5bc1b2c47dc5cf2bc111c7cbcd1fbaa9f7
Author: Brian Swetland <swetland@frotz.net>
Date:   Thu,  9 Mar 2023 14:09:13 -0800

add setclock to adjust SWD clock frequency

Diffstat:
M
src/commands.c
 | 
15
++++++++++++++-

1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/commands.c b/src/commands.c
@@ -9,12 +9,24 @@
 #include "arm-v7-system-control.h"
 
 
+static uint32_t swd_clock_freq = 1000000;
+
 int do_attach(DC* dc, CC* cc) {
 	uint32_t n;
-	dc_set_clock(dc, 1000000);
+	dc_set_clock(dc, swd_clock_freq);
 	return dc_attach(dc, 0, 0, &n);
 }
 
+int do_setclock(DC* dc, CC* cc) {
+	uint32_t mhz;
+	if ((cmd_arg_u32(cc, 1, &mhz) < 0) || (mhz < 1) || (mhz > 20)) {
+		ERROR("setclock <mhz> -- between 1 and 20\n");
+		return DBG_ERR;
+	}
+	swd_clock_freq = mhz * 1000000;
+	dc_set_clock(dc, swd_clock_freq);
+	return 0;
+}
 
 static uint32_t reglist[20] = {
 	0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
@@ -279,6 +291,7 @@ struct {
 { "regs",       do_regs,       "dump registers" },
 { "download",   do_download,   "write file to memory  download <file> <addr>" },
 { "upload",     do_upload,     "read memory to file   upload <file> <addr> <len>" },
+{ "setclock",   do_setclock,   "set SWD clock freq    setclock <mhz>" },
 { "help",       do_help,       "list commands" },
 { "exit",       do_exit,       "exit debugger" },
 { "quit",       do_exit,       NULL },