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view src/cs/drivers/drv_app/r2d/r2d_messages.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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/****************************************************************************/
/*                                                                          */
/*	File Name:	xxx_messages.h												*/
/*                                                                          */
/*	Purpose:	This file contains data structures and functions prototypes */
/*				used to send events to the XXX SWE.							*/
/*                                                                          */
/*  Version		0.1															*/
/*																			*/
/* 	Date       	Modification												*/
/*  ------------------------------------									*/
/*  20/08/2000	Create														*/
/*																			*/
/*	Author		David Lamy-Charrier (dlamy@tif.ti.com)						*/
/*																			*/
/* (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved*/
/****************************************************************************/
#ifndef __R2D_MESSAGES_H_
#define __R2D_MESSAGES_H_


#include "rv/rv_general.h"

#ifdef __cplusplus
extern "C"
{
#endif




/* the message offset must differ for each SWE in order to have unique msg_id in the system */
#define R2D_MESSAGES_OFFSET		(0x36 << 10)


/* define a first msg id */
#define R2D_MESSAGE_1		(R2D_MESSAGES_OFFSET | 0x0001)



/*****************************************/
/* structures of messages send to R2D	*/
typedef struct
{	T_RV_HDR	os_hdr;
	BOOLEAN		status;
} T_R2D_EVT;



#ifdef __cplusplus
}
#endif


#endif /* __R2D_MESSAGES_H_ */