auracaster/openocd
3
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

xvsf player fixes by Dick Hollenbeck <dick@softplc.com>

Browse Source 
git-svn-id: svn://svn.berlios.de/openocd/trunk@1360 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
kc8apf
2009-01-23 07:10:11 +00:00
parent 6f612fb959
commit d5209daeb1
5 changed files with 122 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
src/jtag/ft2232.c
View File

@@ -1415,22 +1415,9 @@ int ft2232_execute_queue()
break;
case JTAG_STABLECLOCKS:
/* "if (tap_move_map[cur_state] != -1)" is of no help when cur_state==TAP_IDLE */
switch(cur_state)
{
case TAP_DRSHIFT:
case TAP_IDLE:
case TAP_RESET:
case TAP_DRPAUSE:
case TAP_IRSHIFT:
case TAP_IRPAUSE:
break; /* above stable states are OK */
default:
LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
jtag_state_name(cur_state) );
retval = ERROR_JTAG_QUEUE_FAILED;
}
/* this is only allowed while in a stable state. A check for a stable
* state was done in jtag_add_clocks()
*/
if (ft2232_stableclocks(cmd->cmd.stableclocks->num_cycles, cmd) != ERROR_OK)
retval = ERROR_JTAG_QUEUE_FAILED;
#ifdef _DEBUG_JTAG_IO_
@@ -2336,11 +2323,15 @@ static int ft2232_stableclocks(int num_cycles, jtag_command_t *cmd)
{
int retval = 0;
/* 7 bits of either ones or zeros. */
u8 tms = (cur_state == TAP_RESET ? 0x7F : 0x00);
while (num_cycles > 0)
{
/* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles
* at most 7 bits per invocation. Here we invoke it potentially
* several times.
* see: http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf
*/
int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;
@@ -2358,8 +2349,8 @@ static int ft2232_stableclocks(int num_cycles, jtag_command_t *cmd)
/* scan 7 bit */
BUFFER_ADD = bitcount_per_command - 1;
/* TMS data bits are all zeros to stay in the current stable state */
BUFFER_ADD = 0x0;
/* TMS data bits are either all zeros or ones to stay in the current stable state */
BUFFER_ADD = tms;
require_send = 1;