+/**
+ * Decode the version bits, originally from -sg, verified with usb
+ * @param sl stlink context, assumed to contain valid data in the buffer
+ * @param slv output parsed version object
+ */
+void _parse_version(stlink_t *sl, stlink_version_t *slv) {
+ uint32_t b0 = sl->q_buf[0]; //lsb
+ uint32_t b1 = sl->q_buf[1];
+ uint32_t b2 = sl->q_buf[2];
+ uint32_t b3 = sl->q_buf[3];
+ uint32_t b4 = sl->q_buf[4];
+ uint32_t b5 = sl->q_buf[5]; //msb
+
+ // b0 b1 || b2 b3 | b4 b5
+ // 4b | 6b | 6b || 2B | 2B
+ // stlink_v | jtag_v | swim_v || st_vid | stlink_pid
+
+ slv->stlink_v = (b0 & 0xf0) >> 4;
+ slv->jtag_v = ((b0 & 0x0f) << 2) | ((b1 & 0xc0) >> 6);
+ slv->swim_v = b1 & 0x3f;
+ slv->st_vid = (b3 << 8) | b2;
+ slv->stlink_pid = (b5 << 8) | b4;
+ return;
+}
+