Author: oharboe
Date: 2009-05-11 11:18:02 +0200 (Mon, 11 May 2009)
New Revision: 1740
Modified:
trunk/src/pld/virtex2.c
Log:
switch to jtag_add_dr_scan() from the synchronous version - USB performance fix
Modified: trunk/src/pld/virtex2.c
===================================================================
--- trunk/src/pld/virtex2.c 2009-05-11 09:14:47 UTC (rev 1739)
+++ trunk/src/pld/virtex2.c 2009-05-11 09:18:02 UTC (rev 1740)
@@ -92,6 +92,10 @@
return ERROR_OK;
}
+static __inline__ void virtexflip32(u8 *in)
+{
+ *((u32 *)in)=flip_u32(le_to_h_u32(in), 32);
+}
int virtex2_receive_32(struct pld_device_s *pld_device, int num_words, u32 *words)
{
@@ -101,16 +105,19 @@
scan_field.tap = virtex2_info->tap;
scan_field.num_bits = 32;
scan_field.out_value = NULL;
- u8 tmp[4];
- scan_field.in_value = tmp;
+ scan_field.in_value = NULL;
virtex2_set_instr(virtex2_info->tap, 0x4); /* CFG_OUT */
while (num_words--)
{
- jtag_add_dr_scan_now(1, &scan_field, TAP_DRPAUSE);
+ scan_field.in_value = (u8 *)words;
+
+ jtag_add_dr_scan(1, &scan_field, TAP_DRPAUSE);
- *words++=flip_u32(le_to_h_u32(tmp), 32);
+ jtag_add_callback(virtexflip32, (u8 *)words);
+
+ words++;;
}
return ERROR_OK;
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