README.devices: Document MASTECH MS6514 interface enabling.

diff --git a/README.devices b/README.devices
index 303128c32ee62237cd1c179fcae2e4e500391dc6..32e2ffc00efa435a20397490fbd17d8771c8b611 100644 (file)
--- a/README.devices
+++ b/README.devices
@@ -389,6 +389,7 @@ a short list for convenience:
       'SI232 online' (28-29S) or 'SI232 store' (22-26x). The interface must
       be configured to the same baud rate as the host (default 9600).
       Multimeter and interface must be configured to the same address.
+ - MASTECH MS6514: Press the "Setup/PC-Link" button for roughly 3 seconds.
  - Metrix MX56C: Press the PRINT button to have the meter send acquisition
    data via IR. Hold the PRINT button to adjust the meter's transmission
    interval.