Merge pull request ARMmbed#53 from linlingao/lp_ticker_bits

Changed LP ticker count to 32 because the effective bitcount in Mbed …
linlingao · Aug 17, 2018 · 4bd5967 · 4bd5967
2 parents 3eb73c0 + 9304071
commit 4bd5967
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Showing 2 changed files with 4 additions and 3 deletions.
diff --git a/TESTS/mbed_hal/lp_ticker/main.cpp b/TESTS/mbed_hal/lp_ticker/main.cpp
@@ -104,7 +104,7 @@ void lp_ticker_info_test()
 
     TEST_ASSERT(p_ticker_info->frequency >= 4000);
     TEST_ASSERT(p_ticker_info->frequency <= 64000);
-    TEST_ASSERT(p_ticker_info->bits >= 12);
+    TEST_ASSERT(p_ticker_info->bits >= 12 && p_ticker_info->bits <= 32);
 }
 
 #if DEVICE_SLEEP

diff --git a/targets/TARGET_TI/TARGET_CC32XX/TARGET_CC3220SF/lp_ticker.c b/targets/TARGET_TI/TARGET_CC32XX/TARGET_CC3220SF/lp_ticker.c
@@ -29,7 +29,8 @@
 #include "lp_ticker_api.h"
 #include "mbed_critical.h"
 
-#define RTC_BITS 48u
+// There's actually 48b but Mbed OS supports 32b only.
+#define RTC_BITS 32u
 #define RTC_FREQ 32768u
 
 static bool         rtc_inited  = false;
@@ -38,7 +39,7 @@ const ticker_info_t* lp_ticker_get_info()
 {
     static const ticker_info_t info = {
            RTC_FREQ,         // 32KHz
-           RTC_BITS          // 48 bit counter
+           RTC_BITS          // 32 bit counter
     };
     return &info;
 }