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Merge pull request #11157 from mprse/us_ticker_freq_fix 

Relax us ticker frequency requirement + test update
pull/11212/head
Martin Kojtal 2019-08-13 11:02:16 +02:00 committed by GitHub
parent be23d3c871 6faf480aba
commit 69bfc3460b
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 17 additions and 3 deletions
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12
TESTS/mbed_hal/us_ticker/main.cpp
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@ -32,7 +32,17 @@ void us_ticker_info_test()
const ticker_info_t *p_ticker_info = us_ticker_get_info();
TEST_ASSERT(p_ticker_info->frequency >= 250000);
TEST_ASSERT(p_ticker_info->frequency <= 8000000);
switch (p_ticker_info->bits) {
case 32:
TEST_ASSERT(p_ticker_info->frequency <= 100000000);
break;
default:
TEST_ASSERT(p_ticker_info->frequency <= 8000000);
break;
}
TEST_ASSERT(p_ticker_info->bits >= 16);
#ifdef US_TICKER_PERIOD_NUM

5
TESTS/mbed_hal/us_ticker/us_ticker_api_tests.h
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@ -31,7 +31,10 @@ extern "C" {
*
* Given ticker is available.
* When ticker information data is obtained.
* Then ticker information indicate that frequency between 250KHz and 8MHz and the counter is at least 16 bits wide.
* Then ticker information indicate that:
* - counter frequency is between 250KHz and 8MHz for counters which are less than 32 bits wide
* - counter frequency is up to 100MHz for counters which are 32 bits wide
* - the counter is at least 16 bits wide.
*/
void us_ticker_info_test(void);

3
hal/us_ticker_api.h
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@ -32,7 +32,8 @@ extern "C" {
* Low level interface to the microsecond ticker of a target
*
* # Defined behavior
* * Has a reported frequency between 250KHz and 8MHz - Verified by test ::us_ticker_info_test
* * Has a reported frequency between 250KHz and 8MHz for counters which are less than 32 bits wide - Verified by test ::us_ticker_info_test
* * Has a reported frequency up to 100MHz for counters which are 32 bits wide - Verified by test ::us_ticker_info_test
* * Has a counter that is at least 16 bits wide - Verified by test ::us_ticker_info_test
* * All behavior defined by the @ref hal_ticker_shared "ticker specification"
*