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view src/cs/drivers/drv_app/abb/abb_inth.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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/**********************************************************************************/
/*            TEXAS INSTRUMENTS INCORPORATED PROPRIETARY INFORMATION              */
/*                                                                                */
/*   Property of Texas Instruments -- For  Unrestricted  Internal  Use  Only      */
/*   Unauthorized reproduction and/or distribution is strictly prohibited.  This  */
/*   product  is  protected  under  copyright  law  and  trade  secret law as an  */
/*   unpublished work.  Created 1987, (C) Copyright 1997 Texas Instruments.  All  */
/*   rights reserved.                                                             */
/*                                                                                */
/*                                                                                */
/*   Filename          : abb_inth.h                                               */
/*                                                                                */
/*   Description       : Functions to manage the ABB device interrupt.            */
/*                       The Serial Port Interface is used to connect the TI  	  */
/*					          	 Analog BaseBand (ABB).				    			      	          */
/*						           It is assumed that the ABB is connected as the SPI       */																				  
/*                       device 0, and ABB interrupt is mapped as external IT.    */																				  
/*														                                      						  */
/*   Author            : Pascal PUEL                                              */
/*                                                                                */
/*   Version number   : 1.0                                                       */
/*                                                                                */
/*   Date and time    : Jan 2003                                                  */
/*                                                                                */
/*   Previous delta   : Creation                                                  */
/*                                                                                */
/**********************************************************************************/
/*                                                                                */
/*   17/12/03                                                                     */
/*   The original abb_inth.h has been splitted between the actual abb_inth.h      */
/*   located in drv_apps directory and abb_inth_core.h located in drv_core        */
/*   directory.                                                                   */
/*   abb_core_inth.h must be included in abb_inth.h.                              */
/*                                                                                */
/**********************************************************************************/

#ifndef __ABB_INTH_H__
#define __ABB_INTH_H__

  #include "main/sys_types.h"
  #include "abb/abb_core_inth.h" 

  #ifndef _WINDOWS

    #include "l1sw.cfg"
    #include "chipset.cfg"
  
    /****************************************************************/
    /* Power ON/OFF key definition.                                 */
    /****************************************************************/
    // If <ON/OFF> key is pressed more than 20 TDMAs, it's a Hook-ON
    #define SHORT_OFF_KEY_PRESSED  (20)
  
    // If <ON/OFF> key is pressed more than 160 TDMAs, it's a Hook-ON AND then Power-OFF
    #define OFF_LOOP_COUNT   (8)
    #define LONG_OFF_KEY_PRESSED   (OFF_LOOP_COUNT * SHORT_OFF_KEY_PRESSED)
  
  #endif   // _WINDOWS
  
  // PROTOTYPES
  void spi_abb_read_int_reg_callback(SYS_UWORD16 *read_value);

#endif  // __ABB_INTH_H__