altos/lpc: Enable brown-out-detector

[fw/altos] / src / lpc / ao_timer_lpc.c

diff --git a/src/lpc/ao_timer_lpc.c b/src/lpc/ao_timer_lpc.c
index c0de90a3ab483343b7c3748ef40fc97b6a403ec9..44fb410e7f522b642d1a68f965f46681690a3d74 100644 (file)
--- a/src/lpc/ao_timer_lpc.c
+++ b/src/lpc/ao_timer_lpc.c
@@ -100,6 +100,15 @@ ao_clock_init(void)
                                 (1 << LPC_SCB_SYSAHBCLKCTRL_GPIO) |
                                 (1 << LPC_SCB_SYSAHBCLKCTRL_IOCON));
                                 
+       /* Enable the brown-out detection at the highest voltage to
+        * make sure the flash part remains happy
+        */
+
+       lpc_scb.pdruncfg &= ~(1 << LPC_SCB_PDRUNCFG_BOD_PD);
+       lpc_scb.bodctrl = ((LPC_SCB_BOD_BODRSTLEV_2_63 << LPC_SCB_BOD_BODRSTLEV) |
+                          (LPC_SCB_BOD_BODINTVAL_RESERVED << LPC_SCB_BOD_BODINTVAL) |
+                          (1 << LPC_SCB_BOD_BODRSTENA));
+
        /* Turn the IRC clock back on */
        lpc_scb.pdruncfg &= ~(1 << LPC_SCB_PDRUNCFG_IRC_PD);
        ao_clock_delay();
@@ -194,7 +203,7 @@ ao_clock_init(void)
        /* 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) |
+                           (0 << LPC_SCB_PDRUNCFG_BOD_PD) |
                            (1 << LPC_SCB_PDRUNCFG_ADC_PD) |
                            (1 << LPC_SCB_PDRUNCFG_WDTOSC_PD) |
                            (1 << LPC_SCB_PDRUNCFG_USBPLL_PD) |