diff options
| -rw-r--r-- | src/jtag/drivers/xds110.c | 158 | ||||
| -rw-r--r-- | tcl/board/ti_cc13x0_launchpad.cfg | 2 | ||||
| -rw-r--r-- | tcl/board/ti_cc13x2_launchpad.cfg | 2 | ||||
| -rw-r--r-- | tcl/board/ti_cc26x0_launchpad.cfg | 2 | ||||
| -rw-r--r-- | tcl/board/ti_cc26x2_launchpad.cfg | 2 | ||||
| -rw-r--r-- | tcl/board/ti_cc3220sf_launchpad.cfg | 2 | ||||
| -rw-r--r-- | tcl/board/ti_cc32xx_launchpad.cfg | 2 | ||||
| -rw-r--r-- | tcl/board/ti_msp432_launchpad.cfg | 2 |
8 files changed, 119 insertions, 53 deletions
diff --git a/src/jtag/drivers/xds110.c b/src/jtag/drivers/xds110.c index 69d9895..085d85f 100644 --- a/src/jtag/drivers/xds110.c +++ b/src/jtag/drivers/xds110.c @@ -41,6 +41,12 @@ #define OCD_FIRMWARE_UPGRADE \ "XDS110: upgrade to version 2.3.0.11+ for improved support" +/* Firmware version that introduced improved TCK performance */ +#define FAST_TCK_FIRMWARE_VERSION 0x03000000 + +/* Firmware version that introduced 10 MHz and 12 MHz TCK support */ +#define FAST_TCK_PLUS_FIRMWARE_VERSION 0x03000003 + /*************************************************************************** * USB Connection Buffer Definitions * ***************************************************************************/ @@ -91,8 +97,17 @@ /* TCK frequency limits */ #define XDS110_MIN_TCK_SPEED 100 /* kHz */ -#define XDS110_MAX_TCK_SPEED 2500 /* kHz */ -#define XDS110_TCK_PULSE_INCREMENT 66.0 +#define XDS110_MAX_SLOW_TCK_SPEED 2500 /* kHz */ +#define XDS110_MAX_FAST_TCK_SPEED 14000 /* kHz */ +#define XDS110_DEFAULT_TCK_SPEED 2500 /* kHz */ + +/* Fixed TCK delay values for "Fast" TCK frequencies */ +#define FAST_TCK_DELAY_14000_KHZ 0 +#define FAST_TCK_DELAY_10000_KHZ 0xfffffffd +#define FAST_TCK_DELAY_12000_KHZ 0xfffffffe +#define FAST_TCK_DELAY_8500_KHZ 1 +#define FAST_TCK_DELAY_5500_KHZ 2 +/* For TCK frequencies below 5500 kHz, use calculated delay */ /* Scan mode on connect */ #define MODE_JTAG 1 @@ -249,7 +264,7 @@ static struct xds110_info xds110 = { .is_cmapi_acquired = false, .is_swd_mode = false, .is_ap_dirty = false, - .speed = XDS110_MAX_TCK_SPEED, + .speed = XDS110_DEFAULT_TCK_SPEED, .delay_count = 0, .serial = {0}, .voltage = 0, @@ -1846,6 +1861,8 @@ static int xds110_execute_queue(void) static int xds110_speed(int speed) { + double freq_to_use; + uint32_t delay_count; bool success; if (speed == 0) { @@ -1853,61 +1870,110 @@ static int xds110_speed(int speed) return ERROR_JTAG_NOT_IMPLEMENTED; } - if (speed > XDS110_MAX_TCK_SPEED) { - LOG_INFO("XDS110: reduce speed request: %dkHz to %dkHz maximum", - speed, XDS110_MAX_TCK_SPEED); - speed = XDS110_MAX_TCK_SPEED; - } - if (speed < XDS110_MIN_TCK_SPEED) { - LOG_INFO("XDS110: increase speed request: %dkHz to %dkHz minimum", + LOG_INFO("XDS110: increase speed request: %d kHz to %d kHz minimum", speed, XDS110_MIN_TCK_SPEED); speed = XDS110_MIN_TCK_SPEED; } - /* The default is the maximum frequency the XDS110 can support */ - uint32_t freq_to_use = XDS110_MAX_TCK_SPEED * 1000; /* Hz */ - uint32_t delay_count = 0; + /* Older XDS110 firmware had inefficient scan routines and could only */ + /* achieve a peak TCK frequency of about 2500 kHz */ + if (xds110.firmware < FAST_TCK_FIRMWARE_VERSION) { - if (XDS110_MAX_TCK_SPEED != speed) { - freq_to_use = speed * 1000; /* Hz */ + /* Check for request for top speed or higher */ + if (speed >= XDS110_MAX_SLOW_TCK_SPEED) { - /* Calculate the delay count value */ - double one_giga = 1000000000; - /* Get the pulse duration for the maximum frequency supported in ns */ - double max_freq_pulse_duration = one_giga / - (XDS110_MAX_TCK_SPEED * 1000); + /* Inform user that speed was adjusted down to max possible */ + if (speed > XDS110_MAX_SLOW_TCK_SPEED) { + LOG_INFO( + "XDS110: reduce speed request: %d kHz to %d kHz maximum", + speed, XDS110_MAX_SLOW_TCK_SPEED); + speed = XDS110_MAX_SLOW_TCK_SPEED; + } + delay_count = 0; - /* Convert frequency to pulse duration */ - double freq_to_pulse_width_in_ns = one_giga / freq_to_use; + } else { - /* - * Start with the pulse duration for the maximum frequency. Keep - * decrementing the time added by each count value till the requested - * frequency pulse is less than the calculated value. - */ - double current_value = max_freq_pulse_duration; + const double XDS110_TCK_PULSE_INCREMENT = 66.0; + freq_to_use = speed * 1000; /* Hz */ + delay_count = 0; + + /* Calculate the delay count value */ + double one_giga = 1000000000; + /* Get the pulse duration for the max frequency supported in ns */ + double max_freq_pulse_duration = one_giga / + (XDS110_MAX_SLOW_TCK_SPEED * 1000); + + /* Convert frequency to pulse duration */ + double freq_to_pulse_width_in_ns = one_giga / freq_to_use; - while (current_value < freq_to_pulse_width_in_ns) { - current_value += XDS110_TCK_PULSE_INCREMENT; - ++delay_count; + /* + * Start with the pulse duration for the maximum frequency. Keep + * decrementing time added by each count value till the requested + * frequency pulse is less than the calculated value. + */ + double current_value = max_freq_pulse_duration; + + while (current_value < freq_to_pulse_width_in_ns) { + current_value += XDS110_TCK_PULSE_INCREMENT; + ++delay_count; + } + + /* + * Determine which delay count yields the best match. + * The one obtained above or one less. + */ + if (delay_count) { + double diff_freq_1 = freq_to_use - + (one_giga / (max_freq_pulse_duration + + (XDS110_TCK_PULSE_INCREMENT * delay_count))); + double diff_freq_2 = (one_giga / (max_freq_pulse_duration + + (XDS110_TCK_PULSE_INCREMENT * (delay_count - 1)))) - + freq_to_use; + + /* One less count value yields a better match */ + if (diff_freq_1 > diff_freq_2) + --delay_count; + } } - /* - * Determine which delay count yields the best match. - * The one obtained above or one less. - */ - if (delay_count) { - double diff_freq_1 = freq_to_use - - (one_giga / (max_freq_pulse_duration + - (XDS110_TCK_PULSE_INCREMENT * delay_count))); - double diff_freq_2 = (one_giga / (max_freq_pulse_duration + - (XDS110_TCK_PULSE_INCREMENT * (delay_count - 1)))) - - freq_to_use; - - /* One less count value yields a better match */ - if (diff_freq_1 > diff_freq_2) - --delay_count; + /* Newer firmware has reworked TCK routines that are much more efficient */ + /* and can now achieve a peak TCK frequency of 14000 kHz */ + } else { + + if (speed >= XDS110_MAX_FAST_TCK_SPEED) { + if (speed > XDS110_MAX_FAST_TCK_SPEED) { + LOG_INFO( + "XDS110: reduce speed request: %d kHz to %d kHz maximum", + speed, XDS110_MAX_FAST_TCK_SPEED); + speed = XDS110_MAX_FAST_TCK_SPEED; + } + delay_count = 0; + } else if (speed >= 12000 && xds110.firmware >= + FAST_TCK_PLUS_FIRMWARE_VERSION) { + delay_count = FAST_TCK_DELAY_12000_KHZ; + } else if (speed >= 10000 && xds110.firmware >= + FAST_TCK_PLUS_FIRMWARE_VERSION) { + delay_count = FAST_TCK_DELAY_10000_KHZ; + } else if (speed >= 8500) { + delay_count = FAST_TCK_DELAY_8500_KHZ; + } else if (speed >= 5500) { + delay_count = FAST_TCK_DELAY_5500_KHZ; + } else { + /* Calculate the delay count to set the frequency */ + /* Formula determined by measuring the waveform on Saeleae logic */ + /* analyzer using known values for delay count */ + const double m = 17100000.0; /* slope */ + const double b = -1.02; /* y-intercept */ + + freq_to_use = speed * 1000; /* Hz */ + double period = 1.0/freq_to_use; + double delay = m * period + b; + + if (delay < 1.0) + delay_count = 1; + else + delay_count = (uint32_t)delay; } } diff --git a/tcl/board/ti_cc13x0_launchpad.cfg b/tcl/board/ti_cc13x0_launchpad.cfg index d2d0c68..4fbce41 100644 --- a/tcl/board/ti_cc13x0_launchpad.cfg +++ b/tcl/board/ti_cc13x0_launchpad.cfg @@ -3,5 +3,5 @@ # source [find interface/xds110.cfg] transport select jtag -adapter speed 2500 +adapter speed 5500 source [find target/ti_cc13x0.cfg] diff --git a/tcl/board/ti_cc13x2_launchpad.cfg b/tcl/board/ti_cc13x2_launchpad.cfg index 706bb72..dc0c182 100644 --- a/tcl/board/ti_cc13x2_launchpad.cfg +++ b/tcl/board/ti_cc13x2_launchpad.cfg @@ -2,6 +2,6 @@ # TI CC13x2 LaunchPad Evaluation Kit # source [find interface/xds110.cfg] -adapter speed 2500 +adapter speed 5500 transport select jtag source [find target/ti_cc13x2.cfg] diff --git a/tcl/board/ti_cc26x0_launchpad.cfg b/tcl/board/ti_cc26x0_launchpad.cfg index c16fa4c..372e57c 100644 --- a/tcl/board/ti_cc26x0_launchpad.cfg +++ b/tcl/board/ti_cc26x0_launchpad.cfg @@ -2,6 +2,6 @@ # TI CC26x0 LaunchPad Evaluation Kit # source [find interface/xds110.cfg] -adapter speed 2500 +adapter speed 5500 transport select jtag source [find target/ti_cc26x0.cfg] diff --git a/tcl/board/ti_cc26x2_launchpad.cfg b/tcl/board/ti_cc26x2_launchpad.cfg index e794191..c8057ad 100644 --- a/tcl/board/ti_cc26x2_launchpad.cfg +++ b/tcl/board/ti_cc26x2_launchpad.cfg @@ -2,6 +2,6 @@ # TI CC26x2 LaunchPad Evaluation Kit # source [find interface/xds110.cfg] -adapter speed 2500 +adapter speed 5500 transport select jtag source [find target/ti_cc26x2.cfg] diff --git a/tcl/board/ti_cc3220sf_launchpad.cfg b/tcl/board/ti_cc3220sf_launchpad.cfg index 30255c7..7c8310a 100644 --- a/tcl/board/ti_cc3220sf_launchpad.cfg +++ b/tcl/board/ti_cc3220sf_launchpad.cfg @@ -2,6 +2,6 @@ # TI CC3220SF-LaunchXL LaunchPad Evaluation Kit # source [find interface/xds110.cfg] -adapter speed 2500 +adapter speed 8500 transport select swd source [find target/ti_cc3220sf.cfg] diff --git a/tcl/board/ti_cc32xx_launchpad.cfg b/tcl/board/ti_cc32xx_launchpad.cfg index 6676e5d..1df461a 100644 --- a/tcl/board/ti_cc32xx_launchpad.cfg +++ b/tcl/board/ti_cc32xx_launchpad.cfg @@ -2,6 +2,6 @@ # TI CC32xx-LaunchXL LaunchPad Evaluation Kit # source [find interface/xds110.cfg] -adapter speed 2500 +adapter speed 8500 transport select swd source [find target/ti_cc32xx.cfg] diff --git a/tcl/board/ti_msp432_launchpad.cfg b/tcl/board/ti_msp432_launchpad.cfg index f7c96ee..6d2b15d 100644 --- a/tcl/board/ti_msp432_launchpad.cfg +++ b/tcl/board/ti_msp432_launchpad.cfg @@ -2,6 +2,6 @@ # TI MSP432 LaunchPad Evaluation Kit # source [find interface/xds110.cfg] -adapter speed 2500 +adapter speed 10000 transport select swd source [find target/ti_msp432.cfg] |