diff options
| author | Mateusz Manowiecki <segmentation@fault.pl> | 2015-01-23 21:58:19 +0100 |
|---|---|---|
| committer | Paul Fertser <fercerpav@gmail.com> | 2015-03-09 06:25:21 +0000 |
| commit | ef0fa97a717e7f1d7af276f7d67897803c505d35 (patch) | |
| tree | 840e081df4a5249ba7cd8798ae9c9f04d3c479e8 /src/jtag/drivers | |
| parent | e3b43b77e9fa5db22c196f82044725783e6fd200 (diff) | |
jtag/drivers/buspirate: add JTAG_STABLECLOCKS cmd
Solution found on the internet
Change-Id: Ied6f7d9b28131a7ac83b203e4c64d4e9ffec0595
Signed-off-by: Mateusz Manowiecki <segmentation@fault.pl>
Reviewed-on: http://openocd.zylin.com/2496
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Diffstat (limited to 'src/jtag/drivers')
| -rw-r--r-- | src/jtag/drivers/buspirate.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/jtag/drivers/buspirate.c b/src/jtag/drivers/buspirate.c index 12d34b9d..554d3e0e 100644 --- a/src/jtag/drivers/buspirate.c +++ b/src/jtag/drivers/buspirate.c @@ -42,6 +42,7 @@ static void buspirate_path_move(int num_states, tap_state_t *path); static void buspirate_runtest(int num_cycles); static void buspirate_scan(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, struct scan_command *command); +static void buspirate_stableclocks(int num_cycles); #define CMD_UNKNOWN 0x00 #define CMD_PORT_MODE 0x01 @@ -192,6 +193,10 @@ static int buspirate_execute_queue(void) buspirate_tap_execute(); jtag_sleep(cmd->cmd.sleep->us); break; + case JTAG_STABLECLOCKS: + DEBUG_JTAG_IO("stable clock %i cycles", cmd->cmd.stableclocks->num_cycles); + buspirate_stableclocks(cmd->cmd.stableclocks->num_cycles); + break; default: LOG_ERROR("BUG: unknown JTAG command type encountered"); exit(-1); @@ -602,6 +607,16 @@ static void buspirate_scan(bool ir_scan, enum scan_type type, buspirate_state_move(); } +static void buspirate_stableclocks(int num_cycles) +{ + int i; + int tms = (tap_get_state() == TAP_RESET ? 1 : 0); + + buspirate_tap_make_space(0, num_cycles); + + for (i = 0; i < num_cycles; i++) + buspirate_tap_append(tms, 0); +} /************************* TAP related stuff **********/ |