view src/cs/riviera/tests/rv/rv_test_misc.h @ 629:3231dd9b38c1

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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/**
 * @file	rv_test_misc.h
 *
 * Definitions used for miscellaneous tests.
 *
 * @author	Cedric Baudelet
 * @author	Vincent Oberle
 */

/*
 * History:
 *
 *	Date       	Author					Modification
 *	-------------------------------------------------------------------
 *	09/29/00	Cedric Baudelet			Create.
 *	03/15/02	Vincent Oberle			Passed all remaining macros into function.
 *										Comment and formating cleaning.
 *
 * (C) Copyright 2002 by Texas Instruments Incorporated, All Rights Reserved
 */

#ifndef _RV_TEST_MISC_H_
#define _RV_TEST_MISC_H_

#include "tests/rv/rv_test.h"

#ifdef __cplusplus
extern "C"
{
#endif


/*
 * DO NOT MODIFY THIS FILE!
 * Add your test in the corresponding .c file only.
 */


/** Misc test number type */
typedef T_RV_TEST_NBR T_RV_MISC_TEST_NBR;

/** Misc test return value type */
typedef T_RV_TEST_RET T_RV_MISC_RET;

/** Misc test error type */
typedef T_RV_TEST_ERR_TYPE T_RV_MISC_ERR_TYPE;


#ifdef __cplusplus
}
#endif

#endif /* _RV_TEST_MISC_H_ */