Re: [Openocd-development] stellaris oddity

[Ø. H. <oyv...@zy...>]

I've committed this change/workaround/comment:



Index: C:/workspace/openocd/src/target/cortex_swjdp.c
===================================================================
--- C:/workspace/openocd/src/target/cortex_swjdp.c	(revision 978)
+++ C:/workspace/openocd/src/target/cortex_swjdp.c	(working copy)
@@ -177,7 +177,17 @@

 	keep_alive();
 	
+	/* Danger!!!! BROKEN!!!! */
 	scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ,
0, &ctrlstat);
+	/* Danger!!!! BROKEN!!!! Why will jtag_execute_queue() fail here????
+	R956 introduced the check on return value here and now Michael
Schwingen reports
+	that this code no longer works....
+	*/
+	if ((retval=jtag_execute_queue())!=ERROR_OK)
+	{
+		LOG_ERROR("BUG: Why does this fail the first time????");
+	}
+	/* Why??? second time it works??? */
 	scan_inout_check_u32(swjdp, SWJDP_IR_DPACC, DP_CTRL_STAT, DPAP_READ,
0, &ctrlstat);
 	if ((retval=jtag_execute_queue())!=ERROR_OK)
 		return retval;


-- 
Øyvind Harboe
http://www.zylin.com/zy1000.html
ARM7 ARM9 XScale Cortex
JTAG debugger and flash programmer