FreeCalypso > hg > fc-magnetite
view src/gpf2/tst/drv/stack1_Serial.h @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 25 Jun 2020 03:17:43 +0000 |
parents | cd37d228dae0 |
children |
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/*============================================================================= * Copyright 1996-2001 Texas Instruments Inc. All rights reserved. */ #ifndef STACK1_SERIAL_HEADER #define STACK1_SERIAL_HEADER //#include "puf_PrimHdr.h" /*============================================================================= * Description: */ //typedef struct{ // Puf_PrimHdr primHdr; //}Stack1_Serial_RxInd; typedef void (*SERIAL_CALLBACK_FUNC)(void); /*=========================================================================== * Description: * Install the Uart interrupt handlers and initialize the Uart. */ int stack1_Serial_PowerUp( SERIAL_CALLBACK_FUNC callback ); /*=========================================================================== * Description: * Copy the data from the Rx buffer into the passed in buffer. If there * aren't dataLen bytes in the Rx buffer all the bytes currently in the rx * buffer are returned. */ unsigned long stack1_Serial_receiveData( unsigned char *dataPtr, unsigned long dataLen ); /*=========================================================================== * Description: * Copy the data to be transmitted into the Tx Buffer and enable the Uart Tx * interrupt. If the Tx buffer is full, discard the data and return a buffer * full indication. */ int stack1_Serial_sendData( unsigned char *dataPtr, unsigned long dataLen ); #endif