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view src/cs/system/bootloader/inc/optboot.h @ 680:ee3ac8c617cb

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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 945cf7f506b2
children
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/*******************************************************************************
 *
 * OPTBOOT.H
 *
 * This module contains functions which build a confirmation for each option:
 *  - get the chip id,
 *  - get the monitor id,
 *  - get the board_id.
 *
 * (C) Texas Instruments 1999
 *
 ******************************************************************************/

#ifndef __OPTBOOT_H__
#define __OPTBOOT_H__

#include "command.h"


extern void opt_get_monitor_id (t_com_request *request,
                                t_com_confirmation *confirmation);

extern void
opt_load_application (t_com_request *request, t_com_confirmation *confirmation, SYS_UWORD8 device_id);

extern unsigned long
opt_get_running_address (t_com_request *request, t_com_confirmation *confirmation);


#endif /* __OPTBOOT_H__ */