diff options
| author | Keith Packard <keithp@keithp.com> | 2013-06-16 15:07:54 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-06-16 15:07:54 -0700 |
| commit | 1676c7dbc3dcce2962be9ef9a58d37c7b48e3c0f (patch) | |
| tree | 9e031ad4f3f9abe8d5da507fc2e13567fc1d67cd | |
| parent | be9ee9ed2d041c4ab4e77ee2010fe3c7a1ca6597 (diff) | |
altos/lpc: Turn off more clocks, disable USART for easymini
Try to reduce noise on the power supply.
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/easymini-v0.1/Makefile | 1 | ||||
| -rw-r--r-- | src/easymini-v0.1/ao_pins.h | 2 | ||||
| -rw-r--r-- | src/lpc/ao_timer_lpc.c | 11 |
3 files changed, 12 insertions, 2 deletions
diff --git a/src/easymini-v0.1/Makefile b/src/easymini-v0.1/Makefile index 612cc472..dfa7624c 100644 --- a/src/easymini-v0.1/Makefile +++ b/src/easymini-v0.1/Makefile @@ -39,7 +39,6 @@ ALTOS_SRC = \ ao_config.c \ ao_timer_lpc.c \ ao_exti_lpc.c \ - ao_serial_lpc.c \ ao_usb_lpc.c \ ao_spi_lpc.c \ ao_adc_lpc.c \ diff --git a/src/easymini-v0.1/ao_pins.h b/src/easymini-v0.1/ao_pins.h index d4fbe7a1..e14e1eb4 100644 --- a/src/easymini-v0.1/ao_pins.h +++ b/src/easymini-v0.1/ao_pins.h @@ -43,7 +43,7 @@ /* USART */ -#define HAS_SERIAL 1 +#define HAS_SERIAL 0 #define USE_SERIAL_0_STDIN 1 #define SERIAL_0_18_19 1 #define SERIAL_0_14_15 0 diff --git a/src/lpc/ao_timer_lpc.c b/src/lpc/ao_timer_lpc.c index 51835baa..73a0e258 100644 --- a/src/lpc/ao_timer_lpc.c +++ b/src/lpc/ao_timer_lpc.c @@ -177,4 +177,15 @@ ao_clock_init(void) lpc_scb.ssp1clkdiv = 0; lpc_scb.usbclkdiv = 0; lpc_scb.clkoutdiv = 0; + + /* Power down everything we don't need */ + lpc_scb.pdruncfg = ((1 << LPC_SCB_PDRUNCFG_IRCOUT_PD) | + (1 << LPC_SCB_PDRUNCFG_IRC_PD) | + (1 << LPC_SCB_PDRUNCFG_BOD_PD) | + (1 << LPC_SCB_PDRUNCFG_ADC_PD) | + (1 << LPC_SCB_PDRUNCFG_WDTOSC_PD) | + (1 << LPC_SCB_PDRUNCFG_USBPLL_PD) | + (1 << LPC_SCB_PDRUNCFG_USBPAD_PD) | + (1 << 11) | + (7 << 13)); } |