X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fcc1111%2Fao_timer.c;h=a3d454da252a75385bd0b5e30136dd3e92da5ffd;hb=refs%2Fheads%2Fbdale-ui;hp=a64b5aba90a0fb5e104a3005dbf2cdda464056ad;hpb=b635cb26ba54c8f5c6a958e0ab0bc4d34d33b635;p=fw%2Faltos diff --git a/src/cc1111/ao_timer.c b/src/cc1111/ao_timer.c deleted file mode 100644 index a64b5aba..00000000 --- a/src/cc1111/ao_timer.c +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright © 2009 Keith Packard - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -#include "ao.h" - -volatile __data uint16_t ao_tick_count; - -uint16_t ao_time(void) __critical -{ - return ao_tick_count; -} - -#define T1_CLOCK_DIVISOR 8 /* 24e6/8 = 3e6 */ -#define T1_SAMPLE_TIME 30000 /* 3e6/30000 = 100 */ - -#if HAS_ADC -volatile __data uint8_t ao_adc_interval = 1; -volatile __data uint8_t ao_adc_count; -#endif - -void ao_timer_isr(void) __interrupt 9 -{ - ++ao_tick_count; -#if HAS_ADC - if (++ao_adc_count == ao_adc_interval) { - ao_adc_count = 0; - ao_adc_poll(); - } -#endif -} - -#if HAS_ADC -void -ao_timer_set_adc_interval(uint8_t interval) __critical -{ - ao_adc_interval = interval; - ao_adc_count = 0; -} -#endif - -void -ao_timer_init(void) -{ - /* NOTE: This uses a timer only present on cc1111 architecture. */ - - /* disable timer 1 */ - T1CTL = 0; - - /* set the sample rate */ - T1CC0H = T1_SAMPLE_TIME >> 8; - T1CC0L = (uint8_t) T1_SAMPLE_TIME; - - T1CCTL0 = T1CCTL_MODE_COMPARE; - T1CCTL1 = 0; - T1CCTL2 = 0; - - /* clear timer value */ - T1CNTL = 0; - - /* enable overflow interrupt */ - OVFIM = 1; - /* enable timer 1 interrupt */ - T1IE = 1; - - /* enable timer 1 in module mode, dividing by 8 */ - T1CTL = T1CTL_MODE_MODULO | T1CTL_DIV_8; -} - -/* - * AltOS always cranks the clock to the max frequency - */ -void -ao_clock_init(void) -{ - /* Switch system clock to crystal oscilator */ - CLKCON = (CLKCON & ~CLKCON_OSC_MASK) | (CLKCON_OSC_XTAL); - - while (!(SLEEP & SLEEP_XOSC_STB)) - ; - - /* Crank up the timer tick and system clock speed */ - CLKCON = ((CLKCON & ~(CLKCON_TICKSPD_MASK | CLKCON_CLKSPD_MASK)) | - (CLKCON_TICKSPD_1 | CLKCON_CLKSPD_1)); - - while ((CLKCON & (CLKCON_TICKSPD_MASK|CLKCON_CLKSPD_MASK)) != - (CLKCON_TICKSPD_1 | CLKCON_CLKSPD_1)) - ; -}