jtagonizer

commit 21691b0e42ee2516d167b82055a5d81816207976
parent 78b9d670e2acc9eee180607decfc0b01b9e71e0a
Author: Brian Swetland <swetland@frotz.net>
Date:   Sun, 21 Sep 2014 21:38:00 -0700

jtag: bigger stress test

Diffstat:
M
jtag.c
 | 
36
++++++++++++++++++++++++++++++++++++

1 file changed, 36 insertions(+), 0 deletions(-)
diff --git a/jtag.c b/jtag.c
@@ -10,6 +10,9 @@ int main(int argc, char **argv) {
 	unsigned p1 = 0x12345678;
 	unsigned p2 = 0xaabbccdd;
 	unsigned x0, x1, x2;
+	unsigned char b0[8192], b1[8192];
+	unsigned n, i;
+	unsigned char C;
 	JTAG *jtag;
 
 	if (jtag_mpsse_open(&jtag)) {
@@ -17,6 +20,12 @@ int main(int argc, char **argv) {
 		return -1;
 	}
 
+	jtag_goto(jtag, JTAG_RESET);
+	jtag_goto(jtag, JTAG_RESET);
+	jtag_goto(jtag, JTAG_RESET);
+	jtag_goto(jtag, JTAG_RESET);
+	jtag_commit(jtag);
+
 	ir = 9;
 	jtag_set_dr_idle(jtag, JTAG_DRPAUSE);
 	jtag_goto(jtag, JTAG_RESET);
@@ -30,5 +39,32 @@ int main(int argc, char **argv) {
 
 	fprintf(stderr,"%x %x %x %x\n", x, x0, x1, x2);
 
+#if 1 
+	for (i = 0; i < 1000; i++) {
+	C = i;
+#define XX 8000
+	memset(b0,C,XX);
+	//for (n = 0; n < 256; n++) b0[n] = n;
+	jtag_goto(jtag, JTAG_RESET);
+	jtag_goto(jtag, JTAG_RESET);
+	jtag_ir_wr(jtag, 6, &ir);
+	jtag_dr_io(jtag, XX*8, b0, b1);
+	jtag_commit(jtag);
+
+	if ((b1[0] != 0x93) || (b1[1] != 0x10) || (b1[2] != 0x63) || (b1[3] != 0x13)) {
+		fprintf(stderr,"OOPS\n");
+		for (n = 0; n < XX; n++) printf("%02x ", b1[n]);
+		return -1;
+	}
+	for (n = 4; n < XX; n++) {
+		if (b1[n] != C) {
+			fprintf(stderr,"OOPS @ %d\n", n);
+			for (n = 0; n < XX; n++) printf("%02x ", b1[n]);
+			return -1;
+		}
+	}
+	}
+	fprintf(stderr,"success!\n");
+#endif
 	return 0;
 }