From: Uwe Hermann Date: Sat, 2 Jun 2012 22:32:23 +0000 (+0200) Subject: Add I2C pullups (2.2kOhm). X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=030755986fbb13ef1f4a6132d9553a4e725cf10f;p=fx2grok.git Add I2C pullups (2.2kOhm). Yes, they're needed even though we don't have an I2C EEPROM, see FX2 docs. --- diff --git a/hardware/fx2grok-cube/0.1/fx2grok-cube.sch b/hardware/fx2grok-cube/0.1/fx2grok-cube.sch index 73aa313..de75757 100644 --- a/hardware/fx2grok-cube/0.1/fx2grok-cube.sch +++ b/hardware/fx2grok-cube/0.1/fx2grok-cube.sch @@ -1,4 +1,4 @@ -EESchema Schematic File Version 2 date Fri 01 Jun 2012 07:19:58 PM CEST +EESchema Schematic File Version 2 date Sun 03 Jun 2012 12:31:54 AM CEST LIBS:power LIBS:device LIBS:transistors @@ -37,7 +37,7 @@ $Descr A4 11700 8267 encoding utf-8 Sheet 1 1 Title "" -Date "1 jun 2012" +Date "2 jun 2012" Rev "" Comp "" Comment1 "" @@ -45,10 +45,34 @@ Comment2 "" Comment3 "" Comment4 "" $EndDescr -Text Label 4400 3200 2 60 ~ 0 -DM -Text Label 4400 3100 2 60 ~ 0 -DP +Text Notes 2300 4900 0 60 ~ 0 +I2C pullups +Text Label 2900 4700 0 60 ~ 0 +SDA +Text Label 2900 4450 0 60 ~ 0 +SCL +Text Label 4500 3800 2 60 ~ 0 +SDA +Text Label 4500 3700 2 60 ~ 0 +SCL +$Comp +L +3.3V #PWR? +U 1 1 4FCA93DC +P 2200 4350 +F 0 "#PWR?" H 2200 4310 30 0001 C CNN +F 1 "+3.3V" H 2200 4460 30 0000 C CNN + 1 2200 4350 + 1 0 0 -1 +$EndComp +Connection ~ 2200 4450 +Wire Wire Line + 2200 4450 2300 4450 +Wire Wire Line + 2300 4700 2200 4700 +Wire Wire Line + 2800 4700 2900 4700 +Wire Wire Line + 4600 3800 4500 3800 Wire Wire Line 4600 3200 4400 3200 Wire Wire Line @@ -166,6 +190,34 @@ Wire Wire Line Connection ~ 5600 5400 Wire Wire Line 4600 3100 4400 3100 +Wire Wire Line + 4600 3700 4500 3700 +Wire Wire Line + 2800 4450 2900 4450 +Wire Wire Line + 2200 4700 2200 4350 +$Comp +L R R? +U 1 1 4FCA93C6 +P 2550 4700 +F 0 "R?" V 2630 4700 50 0000 C CNN +F 1 "2K2" V 2550 4700 50 0000 C CNN + 1 2550 4700 + 0 -1 -1 0 +$EndComp +$Comp +L R R? +U 1 1 4FCA93BD +P 2550 4450 +F 0 "R?" V 2630 4450 50 0000 C CNN +F 1 "2K2" V 2550 4450 50 0000 C CNN + 1 2550 4450 + 0 -1 -1 0 +$EndComp +Text Label 4400 3200 2 60 ~ 0 +DM +Text Label 4400 3100 2 60 ~ 0 +DP NoConn ~ 7300 3200 NoConn ~ 7300 3100 NoConn ~ 7300 3000