MMC3, ADC, INT1 and LCD - Beacon EmbeddedWorks

Go to previous topic

Go to next topic

Last Post 27 Oct 2010 01:09 AM by loginreg@gmail.com

MMC3, ADC, INT1 and LCD

3 Replies

Author

Messages

loginreg@gmail.com

New Member
Posts:

19 Oct 2010 04:15 PM
MMC3 Am I correct in assuming that the MMC3 signals are the equivalent GPIO17..20/12..13 (mode 2 mux)? This would be useful for our project since GPIO0..31 have special features for interrupting in certain low power states. If not, then MMC3 can only otherwise be on GPIO136..139/175..176 (mode 3 mux). This is not so useful, I hope this is not the case. ADC Is the PMIC START_ADC signal routed to a GPIO on the OMAP? INT1 Is the PMIC INT1 signal routed GPIO0 (sys_nirq) on the OMAP? Or anther GPIO? The more I look at the Torpedo board the more I see it as a much better fit than our current OMAP COM, but I just need to check that it supports these things before I can move on. Thanks. [edit] I forgot to mention: MMC3 signals for the default board configuration.

richard.laborde@logicpd.com

Basic Member
Posts:247

22 Oct 2010 02:56 PM
Reg - I forwarded your questions on to my HW guy.

loginreg@gmail.com

New Member
Posts:

22 Oct 2010 04:37 PM
Posted By richardl on 22 Oct 2010 2:56 PM Reg - I forwarded your questions on to my HW guy. Thank you.

loginreg@gmail.com

New Member
Posts:

27 Oct 2010 01:09 AM
The names used in the LogicPD docs are confusing me. I hope this table is a little clearer to describe what I can't manage to figure out. Am I also correct in assuming how the three LCD signals below are connected to the OMAP? LogicPD name Conn Mux mode 4 Mux mode 1 ----------------------------------------------------------- SD3_CLK J1:87 gpio_12 etk_clk SD3_CMD J1:99 gpio_13 etk_ctl SD3_DATA3 J1:90 gpio_17 etk_d3 SD3_DATA0 J1:96 gpio_18 etk_d4 SD3_DATA1 J1:94 gpio_19 etk_d5 SD3_DATA2 J1:92 gpio_20 etk_d6 LCD_MDISP J2:16 gpio_152 mcbsp4_clkx LCD_BACKLIGHT_PWR J1:75 gpio_154 mcbsp4_dx LCD_PANEL_PWR J1:73 gpio_155 mcbsp4_fsx All the other names and connections appear to be quite straightforward, matching the mux-mode-0 configuration names from TI. So I think I've got the rest of it prepared for routing and programming. Plus I hope I can get the START_ADC and INT1 connections to the PMIC clarified. TIA