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Explicitly configure Srf pins for unused peripherals

This commit is contained in:
George Oikonomou 2015-05-01 16:07:46 +01:00
parent 7a189d010b
commit 450550a7d1
1 changed files with 21 additions and 32 deletions
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53
platform/srf06-cc26xx/srf06/board.c
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@ -62,6 +62,24 @@ wakeup_handler(void)
*/
LPM_MODULE(srf_module, NULL, NULL, lpm_wakeup_handler);
/*---------------------------------------------------------------------------*/
static void
configure_unused_pins(void)
{
/* Turn off 3.3-V domain (lcd/sdcard power, output low) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_3V3_EN);
ti_lib_gpio_pin_write(BOARD_3V3_EN, 0);
/* Accelerometer (PWR output low, CSn output, high) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ACC_PWR);
ti_lib_gpio_pin_write(BOARD_ACC_PWR, 0);
/* Ambient light sensor (off, output low) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ALS_PWR);
ti_lib_gpio_pin_write(BOARD_ALS_PWR, 0);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_ALS_OUT);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_ALS_OUT, IOC_NO_IOPULL);
}
/*---------------------------------------------------------------------------*/
void
board_init()
{
@ -81,41 +99,12 @@ board_init()
/* Apply settings and wait for them to take effect */
ti_lib_prcm_load_set();
while(!ti_lib_prcm_load_get()) ;
/* Keys (input pullup) */
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_UP);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_DOWN);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_LEFT);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_RIGHT);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_KEY_SELECT);
/* Turn off 3.3V domain (Powers the LCD and SD card reader): Output, low */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_3V3_EN);
ti_lib_gpio_pin_write(BOARD_3V3_EN, 0);
/* LCD CSn (output high) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_LCD_CS);
ti_lib_gpio_pin_write(BOARD_LCD_CS, 1);
/* SD Card reader CSn (output high) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_SDCARD_CS);
ti_lib_gpio_pin_write(BOARD_SDCARD_CS, 1);
/* Accelerometer (PWR output low, CSn output high) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ACC_PWR);
ti_lib_gpio_pin_write(BOARD_ACC_PWR, 0);
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ACC_CS);
ti_lib_gpio_pin_write(BOARD_IOID_ACC_CS, 1);
/* Ambient light sensor (off, output low) */
ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ALS_PWR);
ti_lib_gpio_pin_write(BOARD_ALS_PWR, 0);
ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_ALS_OUT);
ti_lib_ioc_io_port_pull_set(BOARD_IOID_ALS_OUT, IOC_NO_IOPULL);
while(!ti_lib_prcm_load_get());
lpm_register_module(&srf_module);
configure_unused_pins();
/* Re-enable interrupt if initially enabled. */
if(!int_disabled) {
ti_lib_int_master_enable();