diff --git a/src/Kconfig b/src/Kconfig
index f82abc4a..818dd4f4 100644
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -121,6 +121,9 @@ config HAVE_GPIO_HARD_PWM
 config HAVE_GPIO_BITBANGING
     bool
     default n
+config HAVE_STRICT_TIMING
+    bool
+    default n
 config HAVE_CHIPID
     bool
     default n
diff --git a/src/atsam/Kconfig b/src/atsam/Kconfig
index d8b8d17c..85ba12ae 100644
--- a/src/atsam/Kconfig
+++ b/src/atsam/Kconfig
@@ -11,6 +11,7 @@ config ATSAM_SELECT
     select HAVE_GPIO_SPI
     select HAVE_GPIO_HARD_PWM
     select HAVE_GPIO_BITBANGING
+    select HAVE_STRICT_TIMING
     select HAVE_CHIPID
 
 config BOARD_DIRECTORY
diff --git a/src/atsamd/Kconfig b/src/atsamd/Kconfig
index 5fb0b26b..69429810 100644
--- a/src/atsamd/Kconfig
+++ b/src/atsamd/Kconfig
@@ -11,6 +11,7 @@ config ATSAMD_SELECT
     select HAVE_GPIO_SPI
     select HAVE_GPIO_HARD_PWM if MACH_SAMD21
     select HAVE_GPIO_BITBANGING
+    select HAVE_STRICT_TIMING
     select HAVE_CHIPID
 
 config BOARD_DIRECTORY
diff --git a/src/avr/Kconfig b/src/avr/Kconfig
index fc1d32a3..e430b246 100644
--- a/src/avr/Kconfig
+++ b/src/avr/Kconfig
@@ -11,6 +11,7 @@ config AVR_SELECT
     select HAVE_GPIO_I2C
     select HAVE_GPIO_HARD_PWM
     select HAVE_GPIO_BITBANGING if !MACH_atmega168
+    select HAVE_STRICT_TIMING
 
 config STEP_DELAY
     default -1
diff --git a/src/lpc176x/Kconfig b/src/lpc176x/Kconfig
index 8eb996c9..1b1d908b 100644
--- a/src/lpc176x/Kconfig
+++ b/src/lpc176x/Kconfig
@@ -10,6 +10,7 @@ config LPC_SELECT
     select HAVE_GPIO_I2C
     select HAVE_GPIO_SPI
     select HAVE_GPIO_BITBANGING
+    select HAVE_STRICT_TIMING
     select HAVE_CHIPID
 
 config BOARD_DIRECTORY
diff --git a/src/pru/Kconfig b/src/pru/Kconfig
index bc521536..8956e6bc 100644
--- a/src/pru/Kconfig
+++ b/src/pru/Kconfig
@@ -7,6 +7,7 @@ config PRU_SELECT
     default y
     select HAVE_GPIO
     #select HAVE_GPIO_ADC
+    select HAVE_STRICT_TIMING
 
 config BOARD_DIRECTORY
     string
diff --git a/src/stm32/Kconfig b/src/stm32/Kconfig
index 53853ace..5d2833fa 100644
--- a/src/stm32/Kconfig
+++ b/src/stm32/Kconfig
@@ -10,6 +10,7 @@ config STM32_SELECT
     select HAVE_GPIO_I2C
     select HAVE_GPIO_SPI
     select HAVE_GPIO_BITBANGING
+    select HAVE_STRICT_TIMING
     select HAVE_CHIPID
 
 config BOARD_DIRECTORY