Hi,
a little change... a great effect...
I just tested your changes on a local copy of openocd and now I get my
Altera USB-Blaster at work.
Now it's possible to detect the jtag tap of my device. (without the
patch i got errorss like "all ones and zeros"...)
But it seems to be very slow. I got a lot of packet errors, when
loading a binary... I will check my configuration files tomorrow and
try to get a binary loaded and debugged.
Best regards!
Stefan
Zitat von Felix <dg1...@gmx.de>:
Can you git bisect to find the problem commit?
After having a look at the git commits, it seems that the first
commit from 2009-12-29 already has the broken version.
The sane version I was referring to, was passed to the mailing list
by Catalin Patulea (cat at vv.carleton.ca) on Sun Dec 20 09:25:38
CET 2009
(http://lists.berlios.de/pipermail/openocd-development/2009-December/013731.html). I thought this to be the same version that was committed s initial version, but unfortunatly it
wasnt.
Maybe I can help out with this patch (I'm quit new to git, I hope I
didnt mess up something ;) )
index 1679040..b0df7d3 100644
--- a/src/jtag/drivers/usb_blaster.c
+++ b/src/jtag/drivers/usb_blaster.c
@@ -234,7 +234,7 @@ usb_blaster_buf_read(uint8_t *buf, unsigned
size, uint32_t *bytes_read)
#define NCE (1 << 2)
#define NCS (1 << 3)
#define TDI (1 << 4)
-#define LED (1 << 5)
+#define LED_OE (1 << 5)
#define READ (1 << 6)
#define SHMODE (1 << 7)
#define OTHERS ((1 << 2) | (1 << 3) | (1 << 5))
@@ -277,6 +277,9 @@ static void usb_blaster_write(int tck, int tms, int tdi)
if (tdi)
out_value |= TDI;
+ // enable output of CPLD
+ out_value |= LED_OE;
+
usb_blaster_write_data();
}
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