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Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466
Diff: mbed-os/targets/TARGET_ARM_SSG/TARGET_IOTSS/us_ticker.c
- Revision:
- 0:8fdf9a60065b
diff -r 000000000000 -r 8fdf9a60065b mbed-os/targets/TARGET_ARM_SSG/TARGET_IOTSS/us_ticker.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-os/targets/TARGET_ARM_SSG/TARGET_IOTSS/us_ticker.c Wed Oct 10 00:33:53 2018 +0000 @@ -0,0 +1,94 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2015 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <stddef.h> +#include "us_ticker_api.h" +#include "PeripheralNames.h" + +#define US_TICKER_TIMER1 CMSDK_DUALTIMER1 +#define US_TICKER_TIMER2 CMSDK_DUALTIMER2 +#define US_TICKER_TIMER_IRQn DUALTIMER_IRQn + +int us_ticker_inited = 0; + +void us_ticker_init(void) { + if (us_ticker_inited) return; + us_ticker_inited = 1; + + US_TICKER_TIMER1->TimerControl = 0x0; // disable timer + US_TICKER_TIMER2->TimerControl = 0x00; // disable timer + US_TICKER_TIMER1->TimerLoad = 0xFFFFFFFF; + US_TICKER_TIMER2->TimerLoad = 0xFFFFFFFF; + + US_TICKER_TIMER1->TimerControl = 0x62; // enable interrupt and set to 32 bit counter and set to periodic mode + US_TICKER_TIMER2->TimerControl = 0x42; // enable interrupt and set to 32 bit counter + + US_TICKER_TIMER1->TimerControl |= 0x80; // enable counter + US_TICKER_TIMER2->TimerControl |= 0x80; // enable counter + + NVIC_SetVector(US_TICKER_TIMER_IRQn, (uint32_t)us_ticker_irq_handler); + NVIC_EnableIRQ(US_TICKER_TIMER_IRQn); +} + +uint32_t us_ticker_read() { + uint32_t return_value = 0; + + if (!us_ticker_inited) + us_ticker_init(); + return_value = ((~US_TICKER_TIMER2->TimerValue)/24); + return return_value; +} + +void us_ticker_set_interrupt(timestamp_t timestamp) { + int delta = 0; + + if (!us_ticker_inited) + us_ticker_init(); + delta = (int)(timestamp - us_ticker_read()); + if (delta <= 0) { + // This event was in the past: + us_ticker_irq_handler(); + return; + } + // enable interrupt + US_TICKER_TIMER1->TimerControl = 0x0; // disable timer + US_TICKER_TIMER1->TimerControl = 0x62; // enable interrupt and set to 32 bit counter and set to periodic mode + US_TICKER_TIMER1->TimerLoad = (delta)*24; //initialise the timer value + US_TICKER_TIMER1->TimerControl |= 0x80; //enable timer +} + +void us_ticker_fire_interrupt(void) +{ + NVIC_SetPendingIRQ(US_TICKER_TIMER_IRQn); +} + +void us_ticker_disable_interrupt(void) { + + US_TICKER_TIMER1->TimerControl &= 0xDF; + US_TICKER_TIMER2->TimerControl &= 0xDF; + +} + +void us_ticker_clear_interrupt(void) { + + US_TICKER_TIMER1->TimerIntClr = 0x1; + US_TICKER_TIMER2->TimerIntClr = 0x1; + +} + +void us_ticker_free(void) +{ + +}