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view src/cs/drivers/drv_core/general.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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/****************************************************************************/
/*                                                                          */
/*  Name        general.h                                                   */
/*                                                                          */
/*  Function    this file contains common data type definitions used        */
/*              throughout the SWE                                          */
/*                                                                          */
/*  Date       Modification                                                 */
/*  -----------------------                                                 */
/*  3/12/99    Create                                                       */
/* **************************************************************************/
/*  10/27/1999 David Lamy-Charrier: remove declaration of ntohs, htons,     */
/*                                  ntohl, htonl in order to avoid conflict */
/*                                  with winsock.h                          */
/*                                                                          */
/*  11/30/1999 Pascal Pompei: 'string.h' included in order to define memcmp,*/
/*                            memset and memcpy functions.                  */
/*                                                                          */
/*                                                                          */
/****************************************************************************/

#ifndef GENERAL_H
#define GENERAL_H

#ifdef _WINDOWS
   #include <string.h>
#endif

/* WINDOWS */
#ifdef _WINDOWS
   typedef unsigned short  UINT16;
   typedef unsigned int    UINT32;
   typedef unsigned char   UBYTE;
   typedef short           SHORT;
   typedef int             BOOL;

/* BOARD */
#else
   #ifndef __TYPEDEFS_H__ /* This #define allows to Condat to use general.h without conflict */
      typedef unsigned short  UINT16;
      typedef unsigned char   UBYTE;
      typedef short           SHORT;
      typedef signed char     BYTE;
      #if !defined (BOOL_FLAG)
         #define BOOL_FLAG
         typedef unsigned char BOOL;
      #endif
      typedef unsigned short  USHORT;
      typedef unsigned int    ULONG;
   #endif
   typedef unsigned long    UINT32;
#endif

typedef unsigned char   UINT8;
typedef signed char     INT8;
typedef short           INT16; 
typedef int             INT32;
typedef unsigned char   BOOLEAN;

typedef void (*FUNC)(void);      /* pointer to a function */

#define OK        1

#ifndef NULL
   #define NULL   0
#endif

#ifndef TRUE
   #define TRUE   1
#endif

#ifndef FALSE
   #define FALSE  0
#endif


#define htons  ntohs
#define htonl  ntohl


#if !defined(_WIN32) 
   #define ntohs(n) (n)
   #define ntohl(n) (n)
   #define ntoh6(n) (n)
#endif

#endif /* #ifndef GENERAL_H */