CC3200: keep GPIO status in LPDS mode

Hi Trung,

Please use the PRCMHibernateWakeUpGPIOSelect to select different trigger_type.

Br,
Kobi

or PRCMLPDSWakeupSourceEnable if you want to configure LPDS.

Br,
Kobi

You can update the cc32xx_io_park[] and call cc_io_park_safe()
e.g. cc_io_park_safe(cc32xx_io_park, sizeof(cc32xx_io_park)/sizeof(struct soc_io_park));

or you can update the specific PIN configuration using following example method (pin_num and park_value are the similar to the definition from cc32xx_io_park[]):


void apply_io_park(u8 pin_num, enum io_park_state park_value)
{
u32 pin_strength, pin_type;

if(DONT_CARE != park_value) {
/* Change the pin mode to GPIO to be safe */
//MAP_PinModeSet(pin_num, PIN_MODE_0);

/* First apply PullUp/PullDn (or no pull) according
to the default levels specified in the user supplied
parking table */
MAP_PinConfigGet(pin_num, &pin_strength, &pin_type);

if(NO_PULL_HIZ != park_value) {
MAP_PinConfigSet(pin_num, pin_strength, park_value);
} else {
MAP_PinConfigSet(pin_num, pin_strength, PIN_TYPE_STD);
}

/* One by one HiZ all the IOs,
by writing the register that drives IOEN_N control
pin of the IOs. This register and the signal path is
always-on and hence not get lost during True-LPDS */
MAP_PinDirModeSet(pin_num, PIN_DIR_MODE_IN);

/* Once all the digital IOs has been made HiZ,
the desired default PAD levels would be held by
the weak-pulls. Input buffers would be alive
(such as auto-SPI or wake-GPIOs) and would not
have Iddq issue since pulls are present. */
}
return;
}