mirror of
https://github.com/espressif/esp-idf.git
synced 2025-11-03 22:08:28 +00:00
8f1b98b237
The original ROM function enabled output for the pad first, and then connected the signal This could result in an undesired level change at the pad Closes https://github.com/espressif/esp-idf/issues/12826
29 lines
884 B
C
29 lines
884 B
C
/*
|
|
* SPDX-FileCopyrightText: 2024 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "sdkconfig.h"
|
|
#include "esp_attr.h"
|
|
#include "esp_rom_gpio.h"
|
|
#include "soc/gpio_reg.h"
|
|
|
|
#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2
|
|
// On such targets, the ROM code for this function enabled output for the pad first, and then connected the signal
|
|
// This could result in an undesired glitch at the pad
|
|
IRAM_ATTR void esp_rom_gpio_connect_out_signal(uint32_t gpio_num, uint32_t signal_idx, bool out_inv, bool oen_inv)
|
|
{
|
|
uint32_t value = signal_idx << GPIO_FUNC0_OUT_SEL_S;
|
|
if (out_inv) {
|
|
value |= GPIO_FUNC0_OUT_INV_SEL_M;
|
|
}
|
|
if (oen_inv) {
|
|
value |= GPIO_FUNC0_OEN_INV_SEL_M;
|
|
}
|
|
REG_WRITE(GPIO_FUNC0_OUT_SEL_CFG_REG + (gpio_num * 4), value);
|
|
|
|
REG_WRITE(GPIO_ENABLE_W1TS_REG, (1 << gpio_num));
|
|
}
|
|
#endif
|