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// THIS FILE IS IN THE PUBLIC DOMAIN. // IT IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT // NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. #ifndef _TTM_PowerH_ #define _TTM_PowerH_ //#include "shunt_ovp.h" #include "multiswitch.h" #include "headers.h" // CM_Power: // This design can tolerate an absolute max of 6.0 V on BK.VPOS3_3. // The user must supply all desired decoupling capacitors on output voltages. // The backplane subsystem supplies decoupling capacitors on: // BK.VPOS3_3 class CM_Power : public TModule { // Power subsystem public: // ***** member bundles ***** // CB_PWR_Back BK; // interface to backplane: voltages from the backplane (inputs to this subsystem) // ***** member ports ***** // // supply voltage (output from this subsystem) port VCC; // 3.3 V port GND; // ***** member modules and parts ***** // CP_HEADER10X2CS AuxPower; // auxiliary power connector: 9A max per voltage <<< Label this header on the silkscreen: "AUX Power" // Power switches // list these last in case switch counts change CM_MultiSwitch4 SW_VCC; CP_HEADER2 JumperVCC_EN; // jumper enables VCC when installed <<< Label this header on the silkscreen: "VCC Enable" virtual void Register() { // bundles reg( BK ); // interface to backplane // ports reg( VCC ); reg( GND ); // parts and modules reg( AuxPower ); reg( SW_VCC ); reg( JumperVCC_EN ); } virtual void Connect() { wireall( GND ); // the installed connector may be either a 10x1 x 3-amp or 10x2 x 1-amp connector // aux power connector: // cols 1 row x 3A/pin 2 row x 1A/pin merge( "/NC", AuxPower.P( 6, 1 ) ); // 3 9A 6A // 5V: not used by TTM merge( GND, AuxPower.P( 16, 7 ) ); // 5 15A 10A merge( BK.VPOS3_3, AuxPower.P( 20, 17 ) ); // 2 6A 4A // switch connections BK.VPOS3_3 << SW_VCC.IN; VCC << SW_VCC.OUT; BK.VCC_EN << SW_VCC.EN; // VCC_EN pulldown is in Backplane subsystem resistor pack BK.VCC_EN << JumperVCC_EN.P( 1 ); // install jumper to force VCC on, e.g., when no ROD present JumperVCC_EN.P( 2 ) << BK.VPOS3_3; } }; #endif
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