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Zach Welch <zw@superlucidity.net> do not pad TMS 

git-svn-id: svn://svn.berlios.de/openocd/trunk@1509 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2009-04-22 13:54:04 +00:00
parent f6fd9bc823
commit 779c44125a
1 changed files with 6 additions and 9 deletions
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15
src/jtag/jlink.c
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@ -623,6 +623,10 @@ static void jlink_tap_append_step(int tms, int tdi)
int bit_index = tap_length % 8; int bit_index = tap_length % 8;
u8 bit = 1 << bit_index; u8 bit = 1 << bit_index;
// we do not pad TMS, so be sure to initialize all bits
if (0 == bit_index)
tms_buffer[index] = tdi_buffer[index] = 0;
if (tms) if (tms)
tms_buffer[index] |= bit; tms_buffer[index] |= bit;
else else
@ -669,15 +673,8 @@ static int jlink_tap_execute(void)
if (!tap_length) if (!tap_length)
return ERROR_OK; return ERROR_OK;
/* Pad last byte so that tap_length is divisible by 8 */ // number of full bytes (plus one if some would be left over)
while (tap_length % 8 != 0) byte_length = tap_length / 8 + !!(tap_length % 8);
{
/* More of the last TMS value keeps us in the same state,
* analogous to free-running JTAG interfaces. */
jlink_tap_append_step(last_tms, 0);
}
byte_length = tap_length / 8;
usb_out_buffer[0] = EMU_CMD_HW_JTAG3; usb_out_buffer[0] = EMU_CMD_HW_JTAG3;
usb_out_buffer[1] = 0; usb_out_buffer[1] = 0;