From: Keith Packard <keithp@keithp.com>
Date: Sun, 16 Jun 2013 22:07:54 +0000 (-0700)
Subject: altos/lpc: Turn off more clocks, disable USART for easymini
X-Git-Tag: 1.2.9.4~164
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=1676c7dbc3dcce2962be9ef9a58d37c7b48e3c0f

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>
---

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));
 }