#include "libsigrok-internal.h"
#include "protocol.h"
+extern struct dmm_info udmms[];
+
/*
* Driver for various UNI-T multimeters (and rebranded ones).
*
* f0 00 00 00 00 00 00 00 (no data bytes)
* f2 55 77 00 00 00 00 00 (2 data bytes, 0x55 and 0x77)
* f1 d1 00 00 00 00 00 00 (1 data byte, 0xd1)
- *
- * Chips and serial settings used in UNI-T DMMs (and rebranded ones):
- * - Tecpel DMM-8061: ? (very likely Fortune Semiconductor FS9721_LP3)
- * - UNI-T UT108: ?
- * - UNI-T UT109: ?
- * - UNI-T UT30A: ?
- * - UNI-T UT30E: ?
- * - UNI-T UT60A: Fortune Semiconductor FS9721_LP3 (?)
- * - UNI-T UT60E: Fortune Semiconductor FS9721_LP3 (?)
- * - UNI-T UT60G: ?
- * - UNI-T UT61B: ?
- * - UNI-T UT61C: ?
- * - UNI-T UT61D: Fortune Semiconductor FS9922-DMM4
- * - UNI-T UT61E: Cyrustek ES51922
- * - UNI-T UT70B: ?
- * - Voltcraft VC-820: Fortune Semiconductor FS9721_LP3
- * - Voltcraft VC-830: Fortune Semiconductor FS9922-DMM4
- * - Voltcraft VC-840: Fortune Semiconductor FS9721_LP3
- * - ...
*/
static void decode_packet(struct sr_dev_inst *sdi, int dmm, const uint8_t *buf,
udmms[dmm].dmm_details(&analog, info);
/* Send a sample packet with one analog value. */
- analog.probes = sdi->probes;
+ analog.channels = sdi->channels;
analog.num_samples = 1;
analog.data = &floatval;
packet.type = SR_DF_ANALOG;
devc->bufoffset = 0;
- /* Append the 1-7 data bytes of this chunk to pbuf. */
+ /*
+ * Append the 1-7 data bytes of this chunk to pbuf.
+ *
+ * Special case:
+ * DMMs with Cyrustek ES51922 chip need serial settings of
+ * 19230/7o1. The WCH CH9325 UART to USB/HID chip used in (some
+ * versions of) the UNI-T UT-D04 cable however, will also send
+ * the parity bit to the host in the 8-byte data chunks. This bit
+ * is encoded in bit 7 of each of the 1-7 data bytes and must thus
+ * be removed in order for the actual ES51922 protocol parser to
+ * work properly.
+ */
num_databytes_in_chunk = buf[0] & 0x0f;
- for (i = 0; i < num_databytes_in_chunk; i++)
- pbuf[devc->buflen++] = buf[1 + i];
+ for (i = 0; i < num_databytes_in_chunk; i++, devc->buflen++) {
+ pbuf[devc->buflen] = buf[1 + i];
+ if (udmms[dmm].packet_parse == sr_es519xx_19200_14b_parse)
+ pbuf[devc->buflen] &= ~(1 << 7);
+ }
/* Now look for packets in that data. */
while ((devc->buflen - devc->bufoffset) >= udmms[dmm].packet_size) {
RECEIVE_DATA(TECPEL_DMM_8061, fs9721)
RECEIVE_DATA(UNI_T_UT60A, fs9721)
RECEIVE_DATA(UNI_T_UT60E, fs9721)
+RECEIVE_DATA(UNI_T_UT60G, es519xx)
+RECEIVE_DATA(UNI_T_UT61B, fs9922)
+RECEIVE_DATA(UNI_T_UT61C, fs9922)
RECEIVE_DATA(UNI_T_UT61D, fs9922)
-RECEIVE_DATA(UNI_T_UT61E, es51922)
+RECEIVE_DATA(UNI_T_UT61E, es519xx)
RECEIVE_DATA(VOLTCRAFT_VC820, fs9721)
RECEIVE_DATA(VOLTCRAFT_VC830, fs9922)
RECEIVE_DATA(VOLTCRAFT_VC840, fs9721)
+RECEIVE_DATA(TENMA_72_7745, es519xx)
+RECEIVE_DATA(TENMA_72_7750, es519xx)