K20xx Calculate PWM clock relative to bus clock #3233
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brimston3
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0xc0170
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Nov 11, 2016
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[Build 1108] |
aisair
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Apr 30, 2024
Ports for Upcoming Targets Fixes and Changes 3127: Fixed the issue about push/pop of VFP register. ARMmbed/mbed-os#3127 3176: Modifying micro:bit pin names to mirror micro:bit edge connector ARMmbed/mbed-os#3176 3160: Fix wrong index at LPC43xx tx end ring assignment ARMmbed/mbed-os#3160 3217: Add I2C_ASYNCH capability for DISCO_F469NI ARMmbed/mbed-os#3217 3211: [NUC472/M453] Support single UART shared by multiple serial objects and other updates ARMmbed/mbed-os#3211 3198: NUCLEO_F410RB: Add I2C_ASYNCH capability ARMmbed/mbed-os#3198 3194: Update K64 sdk drivers ARMmbed/mbed-os#3194 3159: User trim values for NCS36510 ARMmbed/mbed-os#3159 3243: Fix make exporters compilation ARMmbed/mbed-os#3243 3231: STM32F3: DISCO_F303VC - Add missing UART and ADC pin muxing options ARMmbed/mbed-os#3231 3233: K20xx Calculate PWM clock relative to bus clock ARMmbed/mbed-os#3233 3237: Added back USART 6 pins ARMmbed/mbed-os#3237 3253: Fix default polarity on LPC43XX PWM driver ARMmbed/mbed-os#3253 3238: Dev i2c stm32f4hal ARMmbed/mbed-os#3238 3251: Dev stm32l0 cube v1.7.0 ARMmbed/mbed-os#3251 3252: [NORDIC - NRF51 - MBED 2] Fix non handled RTC IRQ ARMmbed/mbed-os#3252
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Description
Fix K20xx's PwmOut to calculate pwm clock from the bus clock instead of SystemCoreClock.
Status
READY
Migrations
NO
Steps to test or reproduce
Build subtarget TARGET_TEENSY3_1 with CLOCK_SETUP defined as 0 and build again as 1. Create a user program setting PwmOut with a 1ms period, 50% duty cycle. Verify clock period with oscilloscope. Without this PR, the CLOCK_SETUP 1 config will produce a 2ms period.