FreeCalypso > hg > fc-magnetite
view src/gpf3/frame/frame.def @ 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 | c41a534f33c6 |
| children |
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LIBRARY DESCRIPTION "GPS Frame" EXPORTS vsi_m_new vsi_m_free vsi_m_cfree vsi_m_cnew vsi_m_attach vsi_m_init vsi_p_create vsi_p_exit vsi_p_delete vsi_p_start vsi_p_stop vsi_p_handle vsi_p_name vsi_c_open vsi_c_close vsi_c_clear vsi_c_send vsi_c_free vsi_c_pfree vsi_c_new vsi_c_new_sdu vsi_c_pnew vsi_c_await vsi_c_primitive vsi_c_psend vsi_c_pmax_size vsi_c_sync vsi_c_alloc_send vsi_c_ppass vsi_free vsi_drpo_new vsi_drp_new vsi_dp_new vsi_dp_sum vsi_dp_max_size vsi_t_start vsi_t_pstart vsi_t_stop vsi_t_status vsi_t_config vsi_s_open vsi_s_close vsi_s_get vsi_s_release vsi_o_ttrace _vsi_o_ttrace vsi_o_itrace _vsi_o_itrace vsi_o_ptrace vsi_o_error_ttrace vsi_o_func_ttrace vsi_o_event_ttrace vsi_o_strace vsi_o_assert vsi_o_set_htrace vsi_gettaskname vsi_gettaskhandle vsi_e_name vsi_e_handle vsi_gettaskflags vsi_gettracemask vsi_settracemask vsi_t_time vsi_t_sleep vsi_d_create vsi_d_init vsi_d_exit vsi_d_open vsi_d_close vsi_d_read vsi_d_write vsi_d_setsignal vsi_d_resetsignal vsi_d_setconfig vsi_d_getconfig vsi_d_flush vsi_trc_free vsi_trcsuspend vsi_object_info pf_StartAllTasks pf_CreateAllEntities pf_Init pf_get_frameenv os_CreateTask os_DestroyTask os_StartTask os_StopTask os_GetTaskName os_GetTaskHandle os_SuspendTask os_TaskInformation os_CreateQueue os_DestroyQueue os_OpenQueue os_GetQueueName os_create_extq os_CloseQueue os_SendToQueue os_ReceiveFromQueue os_QueueInformation os_CreatePartitionPool os_AllocatePartition os_DeallocatePartition os_CreateMemoryPool os_AllocateMemory os_DeallocateMemory os_PartitionInformation os_MemoryInformation os_CreateTimer os_DestroyTimer os_StartTimer os_StopTimer os_QueryTimer os_TimerInformation os_CreateSemaphore os_DestroySemaphore os_OpenSemaphore os_CloseSemaphore os_ObtainSemaphore os_ReleaseSemaphore os_SemaphoreInformation os_GetTime os_ObjectInformation SuppressOK rt_RouteRead EntityNameBuf trc_hCommTrace FRM_TST_NAME FRM_RCV_NAME FRM_SYST_NAME FRM_PCO_NAME ext_data_pool_handle int_data_pool_handle PrimGroupHandle DmemGroupHandle