From 632d8efa0552a1dfb2615d29afc727e339b72574 Mon Sep 17 00:00:00 2001
From: Damien George
Date: Wed, 2 Mar 2016 13:37:27 +0000
Subject: 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.
---
 esp8266/modmachine.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'esp8266/modmachine.c')

diff --git a/esp8266/modmachine.c b/esp8266/modmachine.c
index 41f246993..817b5a244 100644
--- a/esp8266/modmachine.c
+++ b/esp8266/modmachine.c
@@ -142,6 +142,7 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
 
     { MP_ROM_QSTR(MP_QSTR_Timer), MP_ROM_PTR(&esp_timer_type) },
     { MP_ROM_QSTR(MP_QSTR_Pin), MP_ROM_PTR(&pyb_pin_type) },
+    { MP_ROM_QSTR(MP_QSTR_PWM), MP_ROM_PTR(&pyb_pwm_type) },
     { MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&pyb_i2c_type) },
     { MP_ROM_QSTR(MP_QSTR_SPI), MP_ROM_PTR(&pyb_spi_type) },
 };
-- 
cgit v1.2.3