FreeCalypso > hg > fc-magnetite
view src/g23m-aci/uart/uart_dtxf.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 | 53929b40109c |
children |
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/* +----------------------------------------------------------------------------- | Project : | Modul : +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : Definitions for uart_dtxf.c +----------------------------------------------------------------------------- */ #ifndef UART_DTXF_H #define UART_DTXF_H EXTERN T_ESD_STATE dtx_get_esd_state(void); EXTERN void dtx_set_esd_state( T_ESD_STATE new_esd_state ); EXTERN void dtx_init (void); EXTERN void dtx_free_resources (void); EXTERN void dtx_exit (void); EXTERN void dtx_allocate_resources (void); EXTERN void dtx_calculate_size_multiplier (T_desc2* desc_to_send, T_DATA_FLOW_STATE data_flow); #ifndef DTILIB EXTERN UBYTE dtx_get_channel_id(void); #endif /* !DTILIB */ #endif /* !UART_DTXF_H */