Sigma: 50 MHZ falling/rising edge trigger support.
Falling/rising edge and value/mask triggers can be combined, e.g.: --triggers 1=0,2=r,3=1,4=1
This commit is contained in:
parent
f758d0744d
commit
c53d793f03
|
@ -49,13 +49,7 @@ static int num_probes = 0;
|
|||
static int samples_per_event = 0;
|
||||
static int capture_ratio = 50;
|
||||
|
||||
/* Single-pin trigger support (100 and 200 MHz).*/
|
||||
static uint8_t triggerpin = 1;
|
||||
static uint8_t triggerfall = 0;
|
||||
|
||||
/* Simple trigger support (<= 50 MHz). */
|
||||
static uint16_t triggermask = 1;
|
||||
static uint16_t triggervalue = 1;
|
||||
static struct sigma_trigger trigger;
|
||||
|
||||
static uint64_t supported_samplerates[] = {
|
||||
KHZ(200),
|
||||
|
@ -570,15 +564,21 @@ static int set_samplerate(struct sigrok_device_instance *sdi, uint64_t samplerat
|
|||
return ret;
|
||||
}
|
||||
|
||||
/* Only trigger on single pin supported (in 100-200 MHz modes). */
|
||||
/*
|
||||
* In 100 and 200 MHz mode, only a single pin rising/falling can be
|
||||
* set as trigger. In other modes, two rising/falling triggers can be set,
|
||||
* in addition to value/mask trigger for any number of probes.
|
||||
*
|
||||
* The Sigma supports complex triggers using boolean expressions, but this
|
||||
* has not been implemented yet.
|
||||
*/
|
||||
static int configure_probes(GSList *probes)
|
||||
{
|
||||
struct probe *probe;
|
||||
GSList *l;
|
||||
int trigger_set = 0;
|
||||
|
||||
triggermask = 0;
|
||||
triggervalue = 0;
|
||||
memset(&trigger, 0, sizeof(struct sigma_trigger));
|
||||
|
||||
for (l = probes; l; l = l->next) {
|
||||
probe = (struct probe *)l->data;
|
||||
|
@ -587,16 +587,16 @@ static int configure_probes(GSList *probes)
|
|||
continue;
|
||||
|
||||
if (cur_samplerate >= MHZ(100)) {
|
||||
/* Fast trigger support */
|
||||
/* Fast trigger support. */
|
||||
if (trigger_set) {
|
||||
g_warning("Asix Sigma only supports a single pin trigger "
|
||||
"in 100 and 200 MHz mode.");
|
||||
return SIGROK_ERR;
|
||||
}
|
||||
if (probe->trigger[0] == 'f')
|
||||
triggerfall = 1;
|
||||
trigger.fast_fall = 1;
|
||||
else if (probe->trigger[0] == 'r')
|
||||
triggerfall = 0;
|
||||
trigger.fast_fall = 0;
|
||||
else {
|
||||
g_warning("Asix Sigma only supports "
|
||||
"rising/falling trigger in 100 "
|
||||
|
@ -604,25 +604,34 @@ static int configure_probes(GSList *probes)
|
|||
return SIGROK_ERR;
|
||||
}
|
||||
|
||||
triggerpin = probe->index - 1;
|
||||
} else {
|
||||
/* Normal trigger support */
|
||||
triggermask |= 1 << (probe->index - 1);
|
||||
trigger.fast_pin = probe->index - 1;
|
||||
|
||||
if (probe->trigger[0] == '1')
|
||||
triggervalue |= 1 << (probe->index - 1);
|
||||
else if (probe->trigger[0] == '0')
|
||||
triggervalue |= 0 << (probe->index - 1);
|
||||
else {
|
||||
g_warning("Asix Sigma only supports "
|
||||
"trigger values in <= 50"
|
||||
" MHz mode.");
|
||||
return SIGROK_ERR;
|
||||
++trigger_set;
|
||||
} else {
|
||||
/* Simple trigger support (event). */
|
||||
if (probe->trigger[0] == '1') {
|
||||
trigger.simplevalue |= 1 << (probe->index - 1);
|
||||
trigger.simplemask |= 1 << (probe->index - 1);
|
||||
}
|
||||
else if (probe->trigger[0] == '0') {
|
||||
trigger.simplevalue |= 0 << (probe->index - 1);
|
||||
trigger.simplemask |= 1 << (probe->index - 1);
|
||||
}
|
||||
else if (probe->trigger[0] == 'f') {
|
||||
trigger.fallingmask |= 1 << (probe->index - 1);
|
||||
++trigger_set;
|
||||
}
|
||||
else if (probe->trigger[0] == 'r') {
|
||||
trigger.risingmask |= 1 << (probe->index - 1);
|
||||
++trigger_set;
|
||||
}
|
||||
|
||||
if (trigger_set > 2) {
|
||||
g_warning("Asix Sigma only supports 2 rising/"
|
||||
"falling triggers.");
|
||||
return SIGROK_ERR;
|
||||
}
|
||||
}
|
||||
|
||||
++trigger_set;
|
||||
}
|
||||
|
||||
return SIGROK_OK;
|
||||
|
@ -917,25 +926,14 @@ static int receive_data(int fd, int revents, void *user_data)
|
|||
return TRUE;
|
||||
}
|
||||
|
||||
/*
|
||||
* Build trigger LUTs used by 50 MHz and lower sample rates for supporting
|
||||
* simple pin change and state triggers. Only two transitions (rise/fall) can be
|
||||
* set at any time, but a full mask and value can be set (0/1).
|
||||
*/
|
||||
static int build_basic_trigger(struct triggerlut *lut)
|
||||
/* Build a LUT entry used by the trigger functions. */
|
||||
static void build_lut_entry(uint16_t value, uint16_t mask, uint16_t *entry)
|
||||
{
|
||||
int i, j, k, bit;
|
||||
|
||||
memset(lut, 0, sizeof(struct triggerlut));
|
||||
|
||||
/* Unknown */
|
||||
lut->m4 = 0xa000;
|
||||
|
||||
/* Set the LUT for controlling value/maske trigger */
|
||||
|
||||
/* For each quad probe. */
|
||||
for (i = 0; i < 4; ++i) {
|
||||
lut->m2d[i] = 0xffff;
|
||||
entry[i] = 0xffff;
|
||||
|
||||
/* For each bit in LUT. */
|
||||
for (j = 0; j < 16; ++j)
|
||||
|
@ -944,17 +942,140 @@ static int build_basic_trigger(struct triggerlut *lut)
|
|||
for (k = 0; k < 4; ++k) {
|
||||
bit = 1 << (i * 4 + k);
|
||||
|
||||
if ((triggermask & bit) &&
|
||||
((!(triggervalue & bit)) !=
|
||||
/* Set bit in entry */
|
||||
if ((mask & bit) &&
|
||||
((!(value & bit)) !=
|
||||
(!(j & (1 << k)))))
|
||||
lut->m2d[i] &= ~(1 << j);
|
||||
entry[i] &= ~(1 << j);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Add a logical function to LUT mask. */
|
||||
static void add_trigger_function(enum triggerop oper, enum triggerfunc func,
|
||||
int index, int neg, uint16_t *mask)
|
||||
{
|
||||
int i, j;
|
||||
int x[2][2], tmp, a, b, aset, bset, rset;
|
||||
|
||||
memset(x, 0, 4 * sizeof(int));
|
||||
|
||||
/* Trigger detect condition. */
|
||||
switch (oper) {
|
||||
case OP_LEVEL:
|
||||
x[0][1] = 1;
|
||||
x[1][1] = 1;
|
||||
break;
|
||||
case OP_NOT:
|
||||
x[0][0] = 1;
|
||||
x[1][0] = 1;
|
||||
break;
|
||||
case OP_RISE:
|
||||
x[0][1] = 1;
|
||||
break;
|
||||
case OP_FALL:
|
||||
x[1][0] = 1;
|
||||
break;
|
||||
case OP_RISEFALL:
|
||||
x[0][1] = 1;
|
||||
x[1][0] = 1;
|
||||
break;
|
||||
case OP_NOTRISE:
|
||||
x[1][1] = 1;
|
||||
x[0][0] = 1;
|
||||
x[1][0] = 1;
|
||||
break;
|
||||
case OP_NOTFALL:
|
||||
x[1][1] = 1;
|
||||
x[0][0] = 1;
|
||||
x[0][1] = 1;
|
||||
break;
|
||||
case OP_NOTRISEFALL:
|
||||
x[1][1] = 1;
|
||||
x[0][0] = 1;
|
||||
break;
|
||||
}
|
||||
|
||||
/* Transpose if neg is set. */
|
||||
if (neg) {
|
||||
for (i = 0; i < 2; ++i)
|
||||
for (j = 0; j < 2; ++j) {
|
||||
tmp = x[i][j];
|
||||
x[i][j] = x[1-i][1-j];
|
||||
x[1-i][1-j] = tmp;
|
||||
}
|
||||
}
|
||||
|
||||
/* Unused when not triggering on transitions */
|
||||
lut->m3 = 0xffff;
|
||||
/* Update mask with function. */
|
||||
for (i = 0; i < 16; ++i) {
|
||||
a = (i >> (2 * index + 0)) & 1;
|
||||
b = (i >> (2 * index + 1)) & 1;
|
||||
|
||||
/* Triggertype: event */
|
||||
aset = (*mask >> i) & 1;
|
||||
bset = x[b][a];
|
||||
|
||||
if (func == FUNC_AND || func == FUNC_NAND)
|
||||
rset = aset & bset;
|
||||
else if (func == FUNC_OR || func == FUNC_NOR)
|
||||
rset = aset | bset;
|
||||
else if (func == FUNC_XOR || func == FUNC_NXOR)
|
||||
rset = aset ^ bset;
|
||||
|
||||
if (func == FUNC_NAND || func == FUNC_NOR || func == FUNC_NXOR)
|
||||
rset = !rset;
|
||||
|
||||
*mask &= ~(1 << i);
|
||||
|
||||
if (rset)
|
||||
*mask |= 1 << i;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Build trigger LUTs used by 50 MHz and lower sample rates for supporting
|
||||
* simple pin change and state triggers. Only two transitions (rise/fall) can be
|
||||
* set at any time, but a full mask and value can be set (0/1).
|
||||
*/
|
||||
static int build_basic_trigger(struct triggerlut *lut)
|
||||
{
|
||||
int i,j;
|
||||
uint16_t masks[2] = {0, 0};
|
||||
|
||||
memset(lut, 0, sizeof(struct triggerlut));
|
||||
|
||||
/* Contant for simple triggers. */
|
||||
lut->m4 = 0xa000;
|
||||
|
||||
/* Value/mask trigger support. */
|
||||
build_lut_entry(trigger.simplevalue, trigger.simplemask, lut->m2d);
|
||||
|
||||
/* Rise/fall trigger support. */
|
||||
for (i = 0, j = 0; i < 16; ++i) {
|
||||
if (trigger.risingmask & (1 << i) ||
|
||||
trigger.fallingmask & (1 << i))
|
||||
masks[j++] = 1 << i;
|
||||
}
|
||||
|
||||
build_lut_entry(masks[0], masks[0], lut->m0d);
|
||||
build_lut_entry(masks[1], masks[1], lut->m1d);
|
||||
|
||||
/* Add glue logic */
|
||||
if (masks[0] || masks[1]) {
|
||||
/* Transition trigger. */
|
||||
if (masks[0] & trigger.risingmask)
|
||||
add_trigger_function(OP_RISE, FUNC_OR, 0, 0, &lut->m3);
|
||||
if (masks[0] & trigger.fallingmask)
|
||||
add_trigger_function(OP_FALL, FUNC_OR, 0, 0, &lut->m3);
|
||||
if (masks[1] & trigger.risingmask)
|
||||
add_trigger_function(OP_RISE, FUNC_OR, 1, 0, &lut->m3);
|
||||
if (masks[1] & trigger.fallingmask)
|
||||
add_trigger_function(OP_FALL, FUNC_OR, 1, 0, &lut->m3);
|
||||
} else {
|
||||
/* Only value/mask trigger. */
|
||||
lut->m3 = 0xffff;
|
||||
}
|
||||
|
||||
/* Triggertype: event. */
|
||||
lut->params.selres = 3;
|
||||
|
||||
return SIGROK_OK;
|
||||
|
@ -989,8 +1110,8 @@ static int hw_start_acquisition(int device_index, gpointer session_device_id)
|
|||
if (cur_samplerate >= MHZ(100)) {
|
||||
sigma_set_register(WRITE_TRIGGER_SELECT1, 0x81);
|
||||
|
||||
triggerselect = (1 << LEDSEL1) | (triggerfall << 3) |
|
||||
(triggerpin & 0x7);
|
||||
triggerselect = (1 << LEDSEL1) | (trigger.fast_fall << 3) |
|
||||
(trigger.fast_pin & 0x7);
|
||||
|
||||
/* All other modes. */
|
||||
} else if (cur_samplerate <= MHZ(50)) {
|
||||
|
|
|
@ -122,4 +122,43 @@ struct triggerlut {
|
|||
} params;
|
||||
};
|
||||
|
||||
/* Trigger configuration */
|
||||
struct sigma_trigger {
|
||||
/* Single-pin trigger support (100 and 200 MHz).*/
|
||||
uint8_t fast_pin;
|
||||
uint8_t fast_fall;
|
||||
|
||||
/* Simple trigger support (<= 50 MHz). */
|
||||
uint16_t simplemask;
|
||||
uint16_t simplevalue;
|
||||
|
||||
/* Only two probes can be used in mask */
|
||||
uint16_t risingmask;
|
||||
uint16_t fallingmask;
|
||||
|
||||
/* TODO: Advanced trigger support (boolean expressions). */
|
||||
};
|
||||
|
||||
/* Events for trigger operation. */
|
||||
enum triggerop {
|
||||
OP_LEVEL = 1,
|
||||
OP_NOT,
|
||||
OP_RISE,
|
||||
OP_FALL,
|
||||
OP_RISEFALL,
|
||||
OP_NOTRISE,
|
||||
OP_NOTFALL,
|
||||
OP_NOTRISEFALL,
|
||||
};
|
||||
|
||||
/* Logical functions for trigger operation. */
|
||||
enum triggerfunc {
|
||||
FUNC_AND = 1,
|
||||
FUNC_NAND,
|
||||
FUNC_OR,
|
||||
FUNC_NOR,
|
||||
FUNC_XOR,
|
||||
FUNC_NXOR,
|
||||
};
|
||||
|
||||
#endif
|
||||
|
|
Loading…
Reference in New Issue