Basic example to Transmit the calendar date and time #23
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The Alarm B of the RTC is used for LoRaWan purpose. Use the LSE as clock source for the RTC instance. set the free running mix mode. Signed-off-by: Francois Ramu <[email protected]>
Mask is set to ALL in case of MIX mode, so that interrupt is trigged on the sub-second basis (other calendar values do not care) Signed-off-by: Francois Ramu <[email protected]>
The RTC.begin does not propose the RTCmode parameter. This is configured with the setRTCMode method before .begin The RTC irq (for Alarm B) is handled directly by the STM32RTC library Signed-off-by: Francois Ramu <[email protected]>
Include the STM32RTC library to all the BSP as only few functions remain in the BSP as the RTC is instantiated by the STM32RTC library Signed-off-by: Francois Ramu <[email protected]>
Directly call the RTC functions from the STM32duino RTC library Let the IsEnabled.RtcFeatures be handled by the RTC library
Give the parameters a 32-bit value to match the SubSecond register of the RTC.
In Mix mode, the SSR is counting on a fqce APRE which is RTCCLK freq / 'PREDIV_A + 1) = 256Hz when RTC is clocked by LSE. This frqe gives a tick of 3.9ms (= 1/256 * 1000)
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Running on the nucleo_wl55 |
fpistm
reviewed
Jul 4, 2023
examples/Basic/Basic.ino
Outdated
| * | ||
| * Revised BSD License - https://spdx.org/licenses/BSD-3-Clause.html | ||
| */ | ||
| #include <STM32RTC.h> |
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Already included by STM32LoRaWAN.h
Suggested change
| #include <STM32RTC.h> |
Modifying the basic.ino to format the Tx packet with the current calendar Date and Time Get the RTC as an external object initialized in MIX mode Signed-off-by: Francois Ramu <[email protected]>
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now more relevant as included in the #25 |
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STM32duinoLoraWan new basic example sending calendar packet
Modifying the basic.ino to format the Tx packet with the current
calendar Date and Time
Get the RTC as an external object initialized in MIX mode
Requires the #25