FreeCalypso > hg > fc-magnetite
view cdg3/cdginc-locosto/p_l1test.val @ 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 | c15047b3d00d |
children |
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/* +--------------------------------------------------------------------------+ | PROJECT : PROTOCOL STACK | | FILE : p_l1test.val | | SOURCE : "sap\l1test.pdf" | | LastModified : "2003-06-06" | | IdAndVersion : "8010.148.03.003" | | SrcFileTime : "Thu Nov 29 09:44:08 2007" | | Generated by CCDGEN_2.5.5A on Thu Sep 25 09:18:53 2014 | | !!DO NOT MODIFY!!DO NOT MODIFY!!DO NOT MODIFY!! | +--------------------------------------------------------------------------+ */ /* PRAGMAS * PREFIX : L1TEST * COMPATIBILITY_DEFINES : NO * ALWAYS_ENUM_IN_VAL_FILE: NO * ENABLE_GROUP: NO * CAPITALIZE_TYPENAME: NO */ #ifndef P_L1TEST_VAL #define P_L1TEST_VAL #define CDG_ENTER__P_L1TEST_VAL #define CDG_ENTER__FILENAME _P_L1TEST_VAL #define CDG_ENTER__P_L1TEST_VAL__FILE_TYPE CDGINC #define CDG_ENTER__P_L1TEST_VAL__LAST_MODIFIED _2003_06_06 #define CDG_ENTER__P_L1TEST_VAL__ID_AND_VERSION _8010_148_03_003 #define CDG_ENTER__P_L1TEST_VAL__SRC_FILE_TIME _Thu_Nov_29_09_44_08_2007 #include "CDG_ENTER.h" #undef CDG_ENTER__P_L1TEST_VAL #undef CDG_ENTER__FILENAME #include "p_mphc.val" /* Access values independent from the corresponding h-file. */ #include "p_mac.val" /* Access values independent from the corresponding h-file. */ /* * user defined constants */ #define L1TEST_TEST_BUFFER_SIZE (0x3e8) #define L1TEST_MAX_TIMESLOTS (0x8) #define L1TEST_BURST_PER_BLOCK (0x4) #include "CDG_LEAVE.h" #endif