interesting
/
riscv-openocd
mirror of https://github.com/riscv/riscv-openocd.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

clock 1/0 in idle now configurable. 

git-svn-id: svn://svn.berlios.de/openocd/trunk@687 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-05-26 11:46:05 +00:00
parent 6945fb26c8
commit e0d6a125c4
1 changed files with 9 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/jtag/bitbang.c
View File

@ -36,6 +36,10 @@
bitbang_interface_t *bitbang_interface; bitbang_interface_t *bitbang_interface;
/* should the clock be high or low in idle? */
#define CLOCK_IDLE() 0
int bitbang_execute_queue(void); int bitbang_execute_queue(void);
/* The bitbang driver leaves the TCK 0 when in idle */ /* The bitbang driver leaves the TCK 0 when in idle */
@ -62,7 +66,7 @@ void bitbang_state_move(void) {
bitbang_interface->write(0, tms, 0); bitbang_interface->write(0, tms, 0);
bitbang_interface->write(1, tms, 0); bitbang_interface->write(1, tms, 0);
} }
bitbang_interface->write(0, tms, 0); bitbang_interface->write(CLOCK_IDLE(), tms, 0);
cur_state = end_state; cur_state = end_state;
} }
@ -98,7 +102,7 @@ void bitbang_path_move(pathmove_command_t *cmd)
num_states--; num_states--;
} }
bitbang_interface->write(0, tms, 0); bitbang_interface->write(CLOCK_IDLE(), tms, 0);
end_state = cur_state; end_state = cur_state;
} }
@ -117,12 +121,12 @@ void bitbang_runtest(int num_cycles)
} }
/* execute num_cycles */ /* execute num_cycles */
bitbang_interface->write(0, 0, 0);
for (i = 0; i < num_cycles; i++) for (i = 0; i < num_cycles; i++)
{ {
bitbang_interface->write(1, 0, 0);
bitbang_interface->write(0, 0, 0); bitbang_interface->write(0, 0, 0);
bitbang_interface->write(1, 0, 0);
} }
bitbang_interface->write(CLOCK_IDLE(), 0, 0);
/* finish in end_state */ /* finish in end_state */
bitbang_end_state(saved_end_state); bitbang_end_state(saved_end_state);
@ -187,7 +191,7 @@ void bitbang_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
*/ */
bitbang_interface->write(0, 0, 0); bitbang_interface->write(0, 0, 0);
bitbang_interface->write(1, 0, 0); bitbang_interface->write(1, 0, 0);
bitbang_interface->write(0, 0, 0); bitbang_interface->write(CLOCK_IDLE(), 0, 0);
if (ir_scan) if (ir_scan)
cur_state = TAP_PI; cur_state = TAP_PI;