From fc45410dedad2dc2fbcd8255be8b3f29cacdff57 Mon Sep 17 00:00:00 2001
From: Chen Jichang <chenjichang@espressif.com>
Date: Sat, 11 Oct 2025 11:23:56 +0800
Subject: [PATCH] fix(rmt): use memset to clear entire RMT memory block instead
 of single word

closes https://github.com/espressif/esp-idf/issues/17692
---
 components/driver/rmt/rmt_tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/driver/rmt/rmt_tx.c b/components/driver/rmt/rmt_tx.c
index 841160a69e..9ae9869542 100644
--- a/components/driver/rmt/rmt_tx.c
+++ b/components/driver/rmt/rmt_tx.c
@@ -787,7 +787,7 @@ static esp_err_t rmt_tx_disable(rmt_channel_handle_t channel)
 #if !SOC_RMT_SUPPORT_ASYNC_STOP
         // we do a trick to stop the undergoing transmission
         // stop interrupt, insert EOF marker to the RMT memory, polling the trans_done event
-        channel->hw_mem_base[0].val = 0;
+        memset(channel->hw_mem_base, 0, channel->mem_block_num * SOC_RMT_MEM_WORDS_PER_CHANNEL * sizeof(rmt_symbol_word_t));
         while (!(rmt_ll_tx_get_interrupt_status_raw(hal->regs, channel_id) & RMT_LL_EVENT_TX_DONE(channel_id))) {}
 #endif
         rmt_ll_clear_interrupt_status(hal->regs, RMT_LL_EVENT_TX_MASK(channel_id));