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JTAG: support KT-LINK adapter

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
tags/v0.4.0-rc1
Krzysztof Kajstura 12 years ago
committed by David Brownell
parent
commit
2970696e89
3 changed files with 143 additions and 0 deletions
  1. +2
    -0
      NEWS
  2. +131
    -0
      src/jtag/ft2232.c
  3. +10
    -0
      tcl/interface/kt-link.cfg

+ 2
- 0
NEWS View File

@@ -4,6 +4,8 @@ history for details about what changed, including bugfixes
and other issues not mentioned here.

JTAG Layer:
Support KT-Link JTAG adapter.

Boundary Scan:
Target Layer:
Flash Layer:


+ 131
- 0
src/jtag/ft2232.c View File

@@ -149,6 +149,7 @@ static int sheevaplug_init(void);
static int icebear_jtag_init(void);
static int cortino_jtag_init(void);
static int signalyzer_h_init(void);
static int ktlink_init(void);

/* reset procedures for supported layouts */
static void usbjtag_reset(int trst, int srst);
@@ -162,12 +163,14 @@ static void axm0432_jtag_reset(int trst, int srst);
static void sheevaplug_reset(int trst, int srst);
static void icebear_jtag_reset(int trst, int srst);
static void signalyzer_h_reset(int trst, int srst);
static void ktlink_reset(int trst, int srst);

/* blink procedures for layouts that support a blinking led */
static void olimex_jtag_blink(void);
static void flyswatter_jtag_blink(void);
static void turtle_jtag_blink(void);
static void signalyzer_h_blink(void);
static void ktlink_blink(void);

static const ft2232_layout_t ft2232_layouts[] =
{
@@ -188,6 +191,7 @@ static const ft2232_layout_t ft2232_layouts[] =
{ "icebear", icebear_jtag_init, icebear_jtag_reset, NULL },
{ "cortino", cortino_jtag_init, comstick_reset, NULL },
{ "signalyzer-h", signalyzer_h_init, signalyzer_h_reset, signalyzer_h_blink },
{ "ktlink", ktlink_init, ktlink_reset, ktlink_blink },
{ NULL, NULL, NULL, NULL },
};

@@ -3897,3 +3901,130 @@ static void signalyzer_h_blink(void)
{
signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_RED, 100, 0, 1);
}

/********************************************************************
* Support for KT-LINK
* JTAG adapter from KRISTECH
* http://www.kristech.eu
*******************************************************************/
static int ktlink_init(void)
{
uint8_t buf[3];
uint32_t bytes_written;
uint8_t swd_en = 0x20; //0x20 SWD disable, 0x00 SWD enable (ADBUS5)

low_output = 0x08 | swd_en; // value; TMS=1,TCK=0,TDI=0,SWD=swd_en
low_direction = 0x3B; // out=1; TCK/TDI/TMS=out,TDO=in,SWD=out,RTCK=in,SRSTIN=in

// initialize low port
buf[0] = 0x80; // command "set data bits low byte"
buf[1] = low_output;
buf[2] = low_direction;
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);

if ( ( ( ft2232_write(buf, 3, &bytes_written) ) != ERROR_OK ) || (bytes_written != 3) )
{
LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
return ERROR_JTAG_INIT_FAILED;
}

nTRST = 0x01;
nSRST = 0x02;
nTRSTnOE = 0x04;
nSRSTnOE = 0x08;

high_output = 0x80; // turn LED on
high_direction = 0xFF; // all outputs

enum reset_types jtag_reset_config = jtag_get_reset_config();

if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
{
high_output |= nTRSTnOE;
high_output &= ~nTRST;
}
else
{
high_output &= ~nTRSTnOE;
high_output |= nTRST;
}

if (jtag_reset_config & RESET_SRST_PUSH_PULL)
{
high_output &= ~nSRSTnOE;
high_output |= nSRST;
}
else
{
high_output |= nSRSTnOE;
high_output &= ~nSRST;
}

// initialize high port
buf[0] = 0x82; // command "set data bits high byte"
buf[1] = high_output; // value
buf[2] = high_direction;
LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);

if ( ( ( ft2232_write(buf, 3, &bytes_written) ) != ERROR_OK ) || (bytes_written != 3) )
{
LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
return ERROR_JTAG_INIT_FAILED;
}

return ERROR_OK;
}

static void ktlink_reset(int trst, int srst)
{
enum reset_types jtag_reset_config = jtag_get_reset_config();

if (trst == 1)
{
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
high_output &= ~nTRSTnOE;
else
high_output &= ~nTRST;
}
else if (trst == 0)
{
if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
high_output |= nTRSTnOE;
else
high_output |= nTRST;
}

if (srst == 1)
{
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
high_output &= ~nSRST;
else
high_output &= ~nSRSTnOE;
}
else if (srst == 0)
{
if (jtag_reset_config & RESET_SRST_PUSH_PULL)
high_output |= nSRST;
else
high_output |= nSRSTnOE;
}

buffer_write(0x82); // command "set data bits high byte"
buffer_write(high_output);
buffer_write(high_direction);
LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,high_direction);
}

static void ktlink_blink(void)
{
/*LED connected to ACBUS7 */
if (high_output & 0x80)
high_output &= 0x7F;
else
high_output |= 0x80;

buffer_write(0x82); // command "set data bits high byte"
buffer_write(high_output);
buffer_write(high_direction);
}


+ 10
- 0
tcl/interface/kt-link.cfg View File

@@ -0,0 +1,10 @@
#
# Kristech KT-Link
#
# http://www.kristech.eu
#

interface ft2232
ft2232_device_desc "KT-LINK"
ft2232_layout ktlink
ft2232_vid_pid 0x0403 0xBBE2

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