summaryrefslogtreecommitdiff
path: root/uart/voltcraft_vc940/README
diff options
context:
space:
mode:
Diffstat (limited to 'uart/voltcraft_vc940/README')
-rw-r--r--uart/voltcraft_vc940/README33
1 files changed, 33 insertions, 0 deletions
diff --git a/uart/voltcraft_vc940/README b/uart/voltcraft_vc940/README
new file mode 100644
index 0000000..8126c53
--- /dev/null
+++ b/uart/voltcraft_vc940/README
@@ -0,0 +1,33 @@
+-------------------------------------------------------------------------------
+Voltcraft VC-940 multimeter
+-------------------------------------------------------------------------------
+
+This is a set of example captures of various communication channels in a
+Voltcraft VC-940 multimeter:
+
+ - Texas Instruments MSP430F149: UART
+ - IR transmitter diode: UART
+ - Cyrustek ES51966F: custom 3-wire protocol (SCLK, STATUS, EOC)
+ - 24LC515: I²C
+
+Details:
+http://sigrok.org/wiki/Voltcraft_VC-940
+
+
+Logic analyzer setup
+--------------------
+
+The logic analyzer used was a Saleae Logic16 (at 500kHz / 1MHz / 4MHz):
+
+ Probe Voltcraft VC-940
+ ----------------------------
+ 0 M430F149 UTXD1
+ 1 M430F149 URXD1
+ 2 ES51966F STATUS
+ 3 ES51966F SCLK
+ 4 ES51966F EOC
+ 5 TX1 (IR)
+ 6 24LC515 SDA
+ 7 24LC515 SCL
+ 8 24LC515 WP
+