ESP-IDF
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Outline
#include "hal/rmt_hal.h"
#include "hal/rmt_ll.h"
#include "soc/soc_caps.h"
rmt_hal_init(rmt_hal_context_t *)
rmt_hal_deinit(rmt_hal_context_t *)
rmt_hal_tx_channel_reset(rmt_hal_context_t *, uint32_t)
rmt_hal_rx_channel_reset(rmt_hal_context_t *, uint32_t)
Files
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SourceVuESP-IDF Framework and ExamplesESP-IDFcomponents/hal/rmt_hal.c
 
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/* * SPDX-FileCopyrightText: 2019-2022 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 *//* ... */ #include "hal/rmt_hal.h" #include "hal/rmt_ll.h" #include "soc/soc_caps.h" void rmt_hal_init(rmt_hal_context_t *hal) { hal->regs = &RMT; rmt_ll_mem_power_by_pmu(hal->regs); rmt_ll_enable_mem_access_nonfifo(hal->regs, true); // APB access the RMTMEM in nonfifo mode rmt_ll_enable_interrupt(hal->regs, UINT32_MAX, false); // disable all interrupt events rmt_ll_clear_interrupt_status(hal->regs, UINT32_MAX); // clear all pending events #if SOC_RMT_SUPPORT_TX_SYNCHRO rmt_ll_tx_clear_sync_group(hal->regs); #endif // SOC_RMT_SUPPORT_TX_SYNCHRO }{ ... } void rmt_hal_deinit(rmt_hal_context_t *hal) { rmt_ll_enable_interrupt(hal->regs, UINT32_MAX, false); // disable all interrupt events rmt_ll_clear_interrupt_status(hal->regs, UINT32_MAX); // clear all pending events rmt_ll_mem_force_power_off(hal->regs); // power off RMTMEM power domain forcefully hal->regs = NULL; }{ ... } void rmt_hal_tx_channel_reset(rmt_hal_context_t *hal, uint32_t channel) { rmt_ll_tx_reset_channels_clock_div(hal->regs, 1 << channel); rmt_ll_tx_reset_pointer(hal->regs, channel); #if SOC_RMT_SUPPORT_TX_LOOP_COUNT rmt_ll_tx_reset_loop_count(hal->regs, channel); #endif // SOC_RMT_SUPPORT_TX_LOOP_COUNT rmt_ll_enable_interrupt(hal->regs, RMT_LL_EVENT_TX_MASK(channel), false); rmt_ll_clear_interrupt_status(hal->regs, RMT_LL_EVENT_TX_MASK(channel)); }{ ... } void rmt_hal_rx_channel_reset(rmt_hal_context_t *hal, uint32_t channel) { rmt_ll_rx_reset_channels_clock_div(hal->regs, 1 << channel); rmt_ll_rx_reset_pointer(hal->regs, channel); rmt_ll_enable_interrupt(hal->regs, RMT_LL_EVENT_RX_MASK(channel), false); rmt_ll_clear_interrupt_status(hal->regs, RMT_LL_EVENT_RX_MASK(channel)); }{ ... }
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