diff options
| author | Keith Packard <keithp@keithp.com> | 2013-06-21 19:39:27 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-06-22 00:49:59 -0700 |
| commit | 23f11b188fc6aacd29e7f01a7d8a40853b7655df (patch) | |
| tree | b6dcec2f56e19164044bb497d67edd0e000d588b /src/lpc/ao_timer_lpc.c | |
| parent | e9e713bc8ab2080d5c1c38570b112f13c886bd11 (diff) | |
altos/lpc: Enable brown-out-detector
Make sure the processor does something sensible when the power disappears.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/lpc/ao_timer_lpc.c')
| -rw-r--r-- | src/lpc/ao_timer_lpc.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/lpc/ao_timer_lpc.c b/src/lpc/ao_timer_lpc.c index c0de90a3..44fb410e 100644 --- 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) | |