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use nfc pins as gpio

This commit is contained in:
Tomasz Duda 2024-05-12 23:32:38 +02:00
parent e48fdbeb6c
commit 498797441d
2 changed files with 35 additions and 0 deletions
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3
esphome/components/zephyr/__init__.py
View File

@ -109,6 +109,9 @@ def zephyr_to_code(conf):
# disable console
zephyr_add_prj_conf("UART_CONSOLE", False)
zephyr_add_prj_conf("CONSOLE", False, False)
# TODO move to nrf52
# use NFC pins as GPIO
zephyr_add_prj_conf("NFCT_PINS_AS_GPIOS", True)
add_extra_script(
"pre",

32
esphome/components/zephyr/power.cpp Normal file
View File

@ -0,0 +1,32 @@
#include <zephyr/init.h>
#include <hal/nrf_power.h>
static int board_esphome_init(void) {
/* if the board is powered from USB
* (high voltage mode), GPIO output voltage is set to 1.8 volts by
* default and that is not enough to turn the green and blue LEDs on.
* Increase GPIO voltage to 3.3 volts.
*/
if ((nrf_power_mainregstatus_get(NRF_POWER) == NRF_POWER_MAINREGSTATUS_HIGH) &&
((NRF_UICR->REGOUT0 & UICR_REGOUT0_VOUT_Msk) == (UICR_REGOUT0_VOUT_DEFAULT << UICR_REGOUT0_VOUT_Pos))) {
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {
;
}
NRF_UICR->REGOUT0 =
(NRF_UICR->REGOUT0 & ~((uint32_t) UICR_REGOUT0_VOUT_Msk)) | (UICR_REGOUT0_VOUT_3V0 << UICR_REGOUT0_VOUT_Pos);
NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;
while (NRF_NVMC->READY == NVMC_READY_READY_Busy) {
;
}
/* a reset is required for changes to take effect */
NVIC_SystemReset();
}
return 0;
}
SYS_INIT(board_esphome_init, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);