FreeCalypso > hg > fc-magnetite

view src/g23m-gprs/grlc/grlc_tpcg.h @ 629:3231dd9b38c1

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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 219afcfc6250
children
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  GPRS (8441)
|  Modul   :  GRLC
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for service TPC.
+----------------------------------------------------------------------------- 
*/ 

/*
 * !!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!
 * 
 * This file was previously named grlc_tpcf.h.
 *
 * A renaming was necessary due to an ClearCase evil twin problem across the
 * TCS2/TCS3/TCS4 and the TCS5 programs.
 *
 * The same applied for the file grlc_tpcf.c.
 * 
 * !!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!ATTENTION!!!
 */

#ifndef GRLC_TPCG_H
#define GRLC_TPCG_H

EXTERN void  tpc_get_ms_pwr_cap ( UBYTE         band_indicator, 
                                  T_MS_PWR_CAP *ms_pwr_cap      );

EXTERN UBYTE tpc_get_pcl        ( UBYTE const  *p_ctrl,
                                  SHORT         nop             );

#endif /* #ifndef GRLC_TPCG_H */