From 447ea6fb39a6e7e4f052e09bc689081116a8cdfa Mon Sep 17 00:00:00 2001
From: bsongis <bsongis@gmail.com>
Date: Sun, 28 Jun 2015 17:20:57 +0200
Subject: [PATCH] [Taranis X9E] Patch from Mike to save power on shutdown

---
 radio/src/targets/taranis/pwr_driver.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/radio/src/targets/taranis/pwr_driver.c b/radio/src/targets/taranis/pwr_driver.c
index d249cb137..6fd719bce 100644
--- a/radio/src/targets/taranis/pwr_driver.c
+++ b/radio/src/targets/taranis/pwr_driver.c
@@ -88,6 +88,13 @@ void pwrOff()
   // key is held pressed by the user
   while (1) {
     wdt_reset();
+    PWR->CR |= PWR_CR_CWUF;
+    /* Select STANDBY mode */
+    PWR->CR |= PWR_CR_PDDS;
+    /* Set SLEEPDEEP bit of Cortex System Control Register */
+    SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+    /* Request Wait For Event */
+    __WFE();
   }
 #endif
 }