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Power: Turn off unused peripheral clocks.

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Dropped power consumption by 42mA at VBUS -- ~200mW.
This commit is contained in:
Jared Boone 2017-07-18 17:04:04 -07:00
parent c5230387df
commit c74dcbb9ba
1 changed files with 42 additions and 0 deletions
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42
firmware/application/portapack.cpp
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@ -160,6 +160,46 @@ static void shutdown_base() {
hackrf::one::reset();
}
static void turn_off_unused_mcu_peripherals() {
/* RITIMER: M0 SysTick substitute (because M0 has no SysTick)
* TIMER3: M0 cycle/PCLK counter
*/
// Reclaim about 42mA when idle at top menu.
LPC_CCU1->CLK_APB3_I2C1_CFG.RUN = 0;
LPC_CCU1->CLK_APB3_DAC_CFG.RUN = 0;
LPC_CCU1->CLK_APB3_CAN0_CFG.RUN = 0;
LPC_CCU1->CLK_APB1_MOTOCON_PWM_CFG.RUN = 0;
LPC_CCU1->CLK_APB1_CAN1_CFG.RUN = 0;
LPC_CCU1->CLK_M4_LCD_CFG.RUN = 0;
LPC_CCU1->CLK_M4_ETHERNET_CFG.RUN = 0;
LPC_CCU1->CLK_M4_USB0_CFG.RUN = 0;
LPC_CCU1->CLK_M4_EMC_CFG.RUN = 0;
LPC_CCU1->CLK_M4_SCT_CFG.RUN = 0;
LPC_CCU1->CLK_M4_USB1_CFG.RUN = 0;
LPC_CCU1->CLK_M4_EMCDIV_CFG.RUN = 0;
LPC_CCU1->CLK_M4_WWDT_CFG.RUN = 0;
LPC_CCU1->CLK_M4_USART0_CFG.RUN = 0;
LPC_CCU1->CLK_M4_UART1_CFG.RUN = 0;
LPC_CCU1->CLK_M4_SSP0_CFG.RUN = 0;
LPC_CCU1->CLK_M4_TIMER1_CFG.RUN = 0;
LPC_CCU1->CLK_M4_USART2_CFG.RUN = 0;
LPC_CCU1->CLK_M4_USART3_CFG.RUN = 0;
LPC_CCU1->CLK_M4_TIMER2_CFG.RUN = 0;
LPC_CCU1->CLK_M4_QEI_CFG.RUN = 0;
LPC_CCU1->CLK_USB1_CFG.RUN = 0;
LPC_CCU1->CLK_SPI_CFG.RUN = 0;
LPC_CCU2->CLK_APB2_USART3_CFG.RUN = 0;
LPC_CCU2->CLK_APB2_USART2_CFG.RUN = 0;
LPC_CCU2->CLK_APB0_UART1_CFG.RUN = 0;
LPC_CCU2->CLK_APB0_USART0_CFG.RUN = 0;
LPC_CCU2->CLK_APB0_SSP0_CFG.RUN = 0;
LPC_CREG->CREG0 |= (1 << 5); // Disable USB0 PHY
}
bool init() {
for(const auto& pin : pins) {
pin.init();
@ -185,6 +225,8 @@ bool init() {
| (0U << 15) // SDA: Enable input glitch filter
;
turn_off_unused_mcu_peripherals();
power.init();
gpio_max5864_select.set();