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view src/cs/riviera/rvt/rvt_env_i.h @ 629:3231dd9b38c1

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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 945cf7f506b2
children
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/*******************************************************************************
 *
 * rvt_env_i.h
 *
 * This file should be included by rvt_env.c ONLY!!!
 * It includes definitions of global variables used for trace.
 *
 * (C) Texas Instruments, all rights reserved
 *
 * Version number	: 0.11
 *
 * History			: 0.1  (7/4/2000) - Created
 *       			: 0.11 (6/13/2002) - Remove useless dependency.
 *
 * Date             : 6/13/2002
 *
 * Author           : Cristian Livadiotti, c-livadiotti@ti.com
 *
 ******************************************************************************/

#ifndef __RVT_ENV_I_H__
#define __RVT_ENV_I_H__


/*
** Environment global variables
*/
extern T_RVF_MB_ID    rvt_mb_id;
extern T_RVF_ADDR_ID  rvt_addr_id;


/*
** Trace Module State
*/
extern T_RVT_STATE    rvt_module_state;

extern char           *p_rvt_lost_msg;
extern char           *p_rvt_sys_time;
extern T_RVT_USER_DB  rvt_user_db [];
extern T_RVT_USER_ID  rv_trace_user_id;

#define RVT_LOST_MSG              ("RVT: Lost Message ")
#define RVT_LOST_MSG_LENGTH       (sizeof (RVT_LOST_MSG) - 1)

#define RVT_SYS_TIME              ("RVT: System Time ")
#define RVT_SYS_TIME_LENGTH       (sizeof (RVT_SYS_TIME) - 1)

#define RVT_HEX_VALUE_LENGTH      (sizeof ("00000000") - 1)

#ifndef FRAMING_PROTOCOL
	#define RVT_HYPERTERM_LENGTH  (sizeof ('\n') + sizeof ('\r'))
#else
	#define RVT_HDR_LENGTH        (6)
#endif

#endif