return SR_OK;
}
+/* See http://openhantek.sourceforge.net/doc/namespaceHantek.html#ac1cd181814cf3da74771c29800b39028 */
+static int dso2250_set_trigger_samplerate(const struct sr_dev_inst *sdi)
+{
+ struct dev_context *devc;
+ struct sr_usb_dev_inst *usb;
+ int ret, tmp;
+ int base;
+ uint8_t cmdstring[12];
+
+
+ devc = sdi->priv;
+ usb = sdi->conn;
+
+ memset(cmdstring, 0, sizeof(cmdstring));
+ /* Command */
+ cmdstring[0] = CMD_2250_SET_TRIGGERSOURCE;
+ sr_dbg("Trigger source %s.", devc->triggersource);
+ if (!strcmp("CH2", devc->triggersource))
+ tmp = 3;
+ else if (!strcmp("CH1", devc->triggersource))
+ tmp = 2;
+ else if (!strcmp("EXT", devc->triggersource))
+ tmp = 0;
+ else {
+ sr_err("Invalid trigger source: '%s'.", devc->triggersource);
+ return SR_ERR_ARG;
+ }
+ cmdstring[2] = tmp;
+
+
+ sr_dbg("Trigger slope: %d.", devc->triggerslope);
+ cmdstring[2] |= (devc->triggerslope == SLOPE_NEGATIVE ? 1 : 0) << 3;
+
+ if (send_begin(sdi) != SR_OK)
+ return SR_ERR;
+
+ if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT,
+ cmdstring, 8, &tmp, 100)) != 0) {
+ sr_err("Failed to set trigger/samplerate: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+
+ /* Frame size */
+ sr_dbg("Frame size: %d.", devc->framesize);
+ cmdstring[0] = CMD_2250_SET_RECORD_LENGTH;
+ cmdstring[2] = devc->framesize == FRAMESIZE_SMALL ? 0x01 : 0x02;
+
+ if (send_begin(sdi) != SR_OK)
+ return SR_ERR;
+
+ if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT,
+ cmdstring, 4, &tmp, 100)) != 0) {
+ sr_err("Failed to set record length: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+
+ memset(cmdstring, 0, sizeof(cmdstring));
+ cmdstring[0] = CMD_2250_SET_SAMPLERATE;
+ /* Timebase fast */
+ sr_dbg("Time base index: %d.", devc->timebase);
+ base = 100e6;
+ if (devc->timebase < TIME_40us) {
+ if (devc->framesize != FRAMESIZE_SMALL) {
+ sr_err("Timebase < 40us only supported with 10K buffer.");
+ return SR_ERR_ARG;
+ }
+
+ /* Fast mode on */
+ base = 200e6;
+ cmdstring[2] |= 1;
+ }
+
+ /* Downsampling on */
+ cmdstring[2] |= 2;
+ /* Downsampler = 1comp((Base / Samplerate) - 2)
+ * Base == 100Msa resp. 200MSa
+ *
+ * Example for 500kSa/s:
+ * 100e6 / 500e3 => 200
+ * 200 - 2 => 198
+ * 1comp(198) => ff39 */
+
+ tmp = base * timebase_to_time(devc->timebase);
+ tmp = 200;
+ if (tmp < 0)
+ return SR_ERR_ARG;
+ tmp -= 2;
+ if (tmp < 0)
+ return SR_ERR_ARG;
+ tmp = ~tmp;
+ sr_dbg("sample rate value: 0x%x.", tmp & 0xffff);
+ cmdstring[4] = (tmp >> 0) & 0xff;
+ cmdstring[5] = (tmp >> 8) & 0xff;
+
+ if (send_begin(sdi) != SR_OK)
+ return SR_ERR;
+
+ if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT,
+ cmdstring, 8, &tmp, 100)) != 0) {
+ sr_err("Failed to set sample rate: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+ sr_dbg("Sent CMD_2250_SET_SAMPLERATE.");
+
+
+ /* Enabled channels: 00=CH1 01=CH2 10=both */
+ memset(cmdstring, 0, sizeof(cmdstring));
+ cmdstring[0] = CMD_2250_SET_CHANNELS;
+ sr_dbg("Channels CH1=%d CH2=%d", devc->ch_enabled[0], devc->ch_enabled[1]);
+ cmdstring[2] = (devc->ch_enabled[0] ? 0 : 1) + (devc->ch_enabled[1] ? 2 : 0);
+
+ if (send_begin(sdi) != SR_OK)
+ return SR_ERR;
+
+ if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT,
+ cmdstring, 4, &tmp, 100)) != 0) {
+ sr_err("Failed to set channels: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+ sr_dbg("Sent CMD_2250_SET_CHANNELS.");
+
+
+
+ /* Trigger slope: 0=positive 1=negative */
+ memset(cmdstring, 0, sizeof(cmdstring));
+ cmdstring[0] = CMD_2250_SET_TRIGGERPOS_AND_BUFFER;
+
+ /* TODO for big buffer */
+ /* TODO */
+ sr_dbg("Trigger position: %3.2f.", devc->triggerposition);
+// tmp = 0x77fff + 0x8000 * devc->triggerposition;
+// cmdstring[6] = tmp & 0xff;
+// cmdstring[7] = (tmp >> 8) & 0xff;
+// cmdstring[10] = (tmp >> 16) & 0xff;
+
+ cmdstring[2]=0xff;
+ cmdstring[3]=0xff;
+ cmdstring[4]=0x07;
+
+ cmdstring[6]=0xff;
+ cmdstring[7]=0xd7;
+ cmdstring[8]=0x07;
+
+ if (send_begin(sdi) != SR_OK)
+ return SR_ERR;
+
+ /* TODO: 12 bytes according to documentation? */
+ if ((ret = libusb_bulk_transfer(usb->devhdl, DSO_EP_OUT,
+ cmdstring, 10, &tmp, 100)) != 0) {
+ sr_err("Failed to set trigger position: %s.",
+ libusb_error_name(ret));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
static int dso_set_trigger_samplerate(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
uint16_t timebase_large[] = { 0xffff, 0x0000, 0xfffc, 0xfff7, 0xffe8,
0xffce, 0xff9d, 0xff07, 0xfe0d, 0xfc19, 0xf63d, 0xec79 };
+ devc = sdi->priv;
+ if (devc->profile->fw_pid == 0x2250)
+ return dso2250_set_trigger_samplerate(sdi);
+
sr_dbg("Preparing CMD_SET_TRIGGER_SAMPLERATE.");
- devc = sdi->priv;
usb = sdi->conn;
memset(cmdstring, 0, sizeof(cmdstring));
return SR_OK;
}
+
static int dso_set_filters(const struct sr_dev_inst *sdi)
{
struct dev_context *devc;
memset(cmdstring, 0, sizeof(cmdstring));
cmdstring[0] = CMD_SET_VOLTAGE;
- cmdstring[1] = 0x0f;
- cmdstring[2] = 0x30;
+
+ if (devc->profile->fw_pid == 0x2250) {
+ cmdstring[2] = 0x08;
+ } else {
+ cmdstring[1] = 0x0f;
+ cmdstring[2] = 0x30;
+ }
/* CH1 volts/div is encoded in bits 0-1 */
sr_dbg("CH1 vdiv index: %d.", devc->voltage[0]);
projects / libsigrok.git / blobdiff