From af23357dca9c5f4bcdb3566aec9813dfa3153dfc Mon Sep 17 00:00:00 2001 From: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com> Date: Fri, 13 Dec 2024 14:45:10 -0500 Subject: [PATCH] [core] Move delay_microseconds_safe to iram (#7957) Co-authored-by: Jonathan Swoboda --- esphome/core/helpers.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/esphome/core/helpers.cpp b/esphome/core/helpers.cpp index 4e8caeae99..b11615204e 100644 --- a/esphome/core/helpers.cpp +++ b/esphome/core/helpers.cpp @@ -767,7 +767,8 @@ bool mac_address_is_valid(const uint8_t *mac) { return !(is_all_zeros || is_all_ones); } -void delay_microseconds_safe(uint32_t us) { // avoids CPU locks that could trigger WDT or affect WiFi/BT stability +void IRAM_ATTR HOT delay_microseconds_safe(uint32_t us) { + // avoids CPU locks that could trigger WDT or affect WiFi/BT stability uint32_t start = micros(); const uint32_t lag = 5000; // microseconds, specifies the maximum time for a CPU busy-loop.