X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Flpc%2Fao_beep_lpc.c;h=b1211752ae1719060650adc87239a8f130afe935;hb=1085ec5d57e0ed5d132f2bbdac1a0b6a32c0ab4a;hp=281f981fc2e19c3960140bd4548ce0076b085aa5;hpb=c0d0147251bfcebd753196b74c22c00c3116fd22;p=fw%2Faltos diff --git a/src/lpc/ao_beep_lpc.c b/src/lpc/ao_beep_lpc.c index 281f981f..b1211752 100644 --- a/src/lpc/ao_beep_lpc.c +++ b/src/lpc/ao_beep_lpc.c @@ -3,7 +3,8 @@ * * 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. + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of @@ -29,16 +30,19 @@ ao_beep(uint8_t beep) /* Set prescaler to match cc1111 clocks */ - lpc_ct32b1.pc = AO_LPC_CLKOUT / 750000 - 1; + lpc_ct32b1.pr = AO_LPC_SYSCLK / 750000 - 1; /* Write the desired data in the match registers */ /* Reset after two time units */ lpc_ct32b1.mr[0] = beep << 1; - /* Flip output after one time unit */ + /* PWM width is half of that */ lpc_ct32b1.mr[1] = beep; + /* Flip output 1 on PWM match */ + lpc_ct32b1.emr = (LPC_CT32B_EMR_EMC_TOGGLE << LPC_CT32B_EMR_EMC1); + /* Reset on match 0 */ lpc_ct32b1.mcr = (1 << LPC_CT32B_MCR_MR0R); @@ -50,7 +54,7 @@ ao_beep(uint8_t beep) /* And turn the timer on */ lpc_ct32b1.tcr = ((1 << LPC_CT32B_TCR_CEN) | - (1 << LPC_CT32B_TCR_CRST)); + (0 << LPC_CT32B_TCR_CRST)); } } @@ -73,6 +77,7 @@ ao_beep_init(void) (LPC_IOCONF_MODE_INACTIVE << LPC_IOCONF_MODE) | (0 << LPC_IOCONF_HYS) | (0 << LPC_IOCONF_INV) | + (1 << LPC_IOCONF_ADMODE) | (0 << LPC_IOCONF_OD)); lpc_scb.sysahbclkctrl |= (1 << LPC_SCB_SYSAHBCLKCTRL_CT32B1);