summaryrefslogtreecommitdiff
path: root/i2c.h
diff options
context:
space:
mode:
authorMichael J. Chudobiak <mjc@avtechpulse.com>2015-10-29 14:25:39 -0400
committerMichael J. Chudobiak <mjc@avtechpulse.com>2015-10-29 14:25:39 -0400
commit31e63ddbf9ddd56f8bd08744dc03d24e9d935818 (patch)
tree9ab4d3d8becfb0d33fd19b7c1afa4b938d275b81 /i2c.h
parentc7d7c63ab0bc7e3b8adb9722d758106dbd5f99fc (diff)
reserve I2C address for octal relay driver PCB 244A
Diffstat (limited to 'i2c.h')
-rw-r--r--i2c.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/i2c.h b/i2c.h
index 9526aca..75b7d72 100644
--- a/i2c.h
+++ b/i2c.h
@@ -5,6 +5,7 @@
#define Second_Dly_Port 1 /* PCF8574 at three-bit address 1 is for dual delay board (obsolete, was for AVX-DD-A3-PS-TC) */
#define To_Self_Cal_Port 2 /* PCF8574 at three-bit address 2 is for self-cal PCB 226A */
#define From_Self_Cal_Port 3 /* PCF8574 at three-bit address 3 is for self-cal PCB 226A */
+#define Octal_Relay_Driver 4 /* PCF8574 at three-bit address 4 is for octal relay driver, PCB 244A */
#define PCF8574A 0x38 /* Main I2C peripheral device */
#define Button_Press_Port 0 /* PCF8574A at three-bit address 0 is for detecting button presses */