FreeCalypso > hg > fc-magnetite
view src/aci2/atb/ATBPbGI.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 | 93999a60b835 |
| children |
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#ifndef GIPB_H #define GIPB_H /* FUNCTION PROTOTYPES * Functions called by MMI */ #ifndef ATBPB_H #include "ATBPb.h" #endif T_MFW GI_pb_GetPhonebook(UBYTE *intphonebook); T_MFW GI_pb_SetPhonebook(UBYTE intphonebook); T_MFW GI_pb_Initialise(void); T_MFW GI_pb_Exit(void); void GI_pb_Info(T_MFW_PHB_STATUS *status); void GI_pb_Status(UBYTE *stat); T_MFW GI_pb_WriteRec(T_MFW_PHB_ENTRY *entry); T_MFW GI_pb_DeleteRec(UBYTE index); T_MFW GI_pb_Find(UBYTE mode, UBYTE *index, UBYTE num_recs, T_MFW_PHB_TEXT *search_pattern, T_MFW_PHB_LIST *entries); T_MFW GI_pb_ReadRecList(UBYTE mode, UBYTE index, UBYTE num_recs, T_MFW_PHB_LIST *entries); UBYTE GI_pb_ConvIndex(T_PB_INDEX index_type, UBYTE index, T_PB_INDEX new_index_type); #endif
