FreeCalypso > hg > fc-magnetite
view src/cs/drivers/drv_app/ffs/ffs_env.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 Name: ffs_env.h */ /* */ /* Purpose: This file contains prototypes for RV manager related */ /* functions used to get info, start and stop the ffs block. */ /* */ /* Version 0.1 */ /* */ /* Date Modification */ /* ------------------------------------ */ /* 10/24/2000 Create */ /* */ /* Author Pascal Puel */ /* */ /* (C) Copyright 2000 by Texas Instruments Incorporated, All Rights Reserved*/ /****************************************************************************/ #ifndef __FFS_ENV_H_ #define __FFS_ENV_H_ #include "rvm/rvm_gen.h" #include "ffs/ffs_pool_size.h" /* Stack & Memory Bank sizes definitions */ /* FFS mailbox */ #define FFS_MAILBOX RVF_TASK_MBOX_0 /* min mem size: fd_max * fd_buf_size + 1k */ /* memory bank size and watermark */ #define FFS_MB_PRIM_SIZE FFS_MB1_SIZE #define FFS_MB_PRIM_WATERMARK (FFS_MB_PRIM_SIZE - 3000) typedef struct { T_RVF_MB_ID mbid; T_RVF_ADDR_ID addr_id; } T_FFS_TASK_INFO; extern T_FFS_TASK_INFO ffs_task_info; /* generic functions declarations */ T_RVM_RETURN ffs_get_info (T_RVM_INFO_SWE *infoSWE); T_RVM_RETURN ffs_set_info(T_RVF_ADDR_ID addr_id, T_RV_RETURN ReturnPath[], T_RVF_MB_ID mbId[], T_RVM_RETURN (*callBackFct)(T_RVM_NAME SWEntName, T_RVM_RETURN errorCause, T_RVM_ERROR_TYPE errorType, T_RVM_STRING errorMsg)); T_RVM_RETURN ffs_init (void); T_RVM_RETURN ffs_start (void); T_RVM_RETURN ffs_stop (void); T_RVM_RETURN ffs_kill (void); #endif /*__FFS_ENV_H_*/