github/micropython - micropython - Gitea: Git with home nas server

Author	SHA1	Message	Date
Olivier Ortigues	b691aa0aae	esp8266/esppwm: Always start timer to avoid glitch from full to nonfull. The PWM at full value was not considered as an "active" channel so if no other channel was used the timer used to mange PWM was not started. So when another duty value was set the PWM timer restarted and there was a visible glitch when driving LEDs. Such a glitch can be seen with the following code (assuming active-low LED on pin 0): p = machine.PWM(machine.Pin(0)) p.duty(1023) # full width, LED is off p.duty(1022) # LED flashes brightly then goes dim This patch fixes the glitch.	7 years ago
Olivier Ortigues	5c83d05b49	esp8266/esppwm: Clip negative duty numbers to 0. Prior to this patch a negative duty would lead to full PWM.	7 years ago
Damien George	01dd7804b8	ports: Make new ports/ sub-directory and move all ports there. This is to keep the top-level directory clean, to make it clear what is core and what is a port, and to allow the repository to grow with new ports in a sustainable way.	7 years ago
Paul Sokolovsky	ba640bde55	esp8266/esppwm.c: Fix IRQ handler prototype.	9 years ago
Damien George	632d8efa05	esp8266: Add PWM support. PWM implementation uses a timer and interrupts (FRC1), taken from Espressif's/NodeMCU's implementation and adapted for our use. 8 channels are supported, on pins 0, 2, 4, 5, 12, 13, 14, 15. Usage: import machine pwm0 = machine.PWM(machine.Pin(0)) pwm0.freq(1000) pwm0.duty(500) Frequency is shared (ie the same) for all channels. Frequency is between 1 and 1000. Duty is between 0 and 1023.	9 years ago