Revision 25:5147cde086fd, committed 2017-11-24

Comitter:

mx300

Date:

Fri Nov 24 00:04:03 2017 +0000

Parent:

24:65c04a02ad45

Commit message:

Modified for use on STM32L152RE

Changed in this revision

diff -r 65c04a02ad45 -r 5147cde086fd Device/WakeUp_Freescale.cpp
--- a/Device/WakeUp_Freescale.cpp	Tue Jul 04 07:59:06 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,135 +0,0 @@
-#if defined(TARGET_Freescale)
-
-#include "WakeUp.h"
-#include "us_ticker_api.h"
-
-Callback<void()> WakeUp::callback;
-float WakeUp::cycles_per_ms = 1.0;
-
-static uint16_t remainder_count;
-static uint32_t oldvector;
-static uint8_t oldPSR;
-
-//See if we have a 32kHz crystal on the clock input
-//Check if the DMX32 bit is set, not perfect, but most cases will work
-static inline bool is32kXtal(void) {
-    return (MCG->C4 & MCG_C4_DMX32_MASK);
-}
-
-void restore(void);
-
-void WakeUp::set_ms(uint32_t ms)
-{
-    /* Clock the timer */
-    SIM->SCGC5 |= 0x1u;
-    
-    //Check if it is running, in that case, store current values
-    remainder_count = 0;
-    if (NVIC_GetVector(LPTimer_IRQn) != (uint32_t)WakeUp::irq_handler) {
-        oldvector = NVIC_GetVector(LPTimer_IRQn);
-        oldPSR = LPTMR0->PSR;
-        
-        if (LPTMR0->CSR & LPTMR_CSR_TIE_MASK) {
-            //Write first to sync value
-            LPTMR0->CNR = 0;
-            uint16_t countval = LPTMR0->CNR;
-            if (countval < LPTMR0->CMR)
-                remainder_count = countval - LPTMR0->CMR;
-        }
-    }
-    
-    LPTMR0->CSR = 0;
-
-    if (ms != 0) {
-        /* Set interrupt handler */
-        NVIC_SetVector(LPTimer_IRQn, (uint32_t)WakeUp::irq_handler);
-        NVIC_EnableIRQ(LPTimer_IRQn);
-        
-        uint32_t counts;
-        //Set clock
-        if (is32kXtal()) {
-            SIM->SOPT1 &= ~SIM_SOPT1_OSC32KSEL_MASK;    //Put RTC/LPTMR on 32kHz external. 
-            #ifdef OSC0
-            OSC0->CR |= OSC_CR_EREFSTEN_MASK;
-            #else
-            OSC->CR |= OSC_CR_EREFSTEN_MASK;
-            #endif
-            LPTMR0->PSR = LPTMR_PSR_PCS(2);
-            counts = (uint32_t)((float)ms * 32.768f);
-        } else {
-            //Clock from the 1kHz LPO
-            LPTMR0->PSR = LPTMR_PSR_PCS(1);
-            counts = (uint32_t)((float)ms * cycles_per_ms);
-        }
-        
-        //If no prescaler is needed
-        if (counts <= 0xFFFF) 
-            LPTMR0->PSR |= LPTMR_PSR_PBYP_MASK;
-        else {        //Otherwise increase prescaler until it fits
-            counts >>= 1;
-            uint32_t prescaler = 0;
-            while (counts > 0xFFFF) {
-                counts >>= 1;
-                prescaler++;
-            }
-            LPTMR0->PSR |= LPTMR_PSR_PRESCALE(prescaler);
-        }
-        LPTMR0->CMR = counts;        
-
-        LPTMR0->CSR = LPTMR_CSR_TIE_MASK;
-        LPTMR0->CSR |= LPTMR_CSR_TEN_MASK;
-    } else {
-        restore();
-    }
-
-}
-
-
-void WakeUp::irq_handler(void)
-{
-    // write 1 to TCF to clear the LPT timer compare flag
-    LPTMR0->CSR |= LPTMR_CSR_TCF_MASK;
-    restore();
-    callback.call();
-}
-
-void WakeUp::calibrate(void)
-{
-    if (!is32kXtal()) {
-        wait_us(1);     //Otherwise next wait might overwrite our settings
-        cycles_per_ms = 1.0;
-        set_ms(1100);
-        wait_ms(100);
-    
-        //Write first to sync value
-        LPTMR0->CNR = 0;
-        uint32_t ticks = LPTMR0->CNR;
-        cycles_per_ms = ticks / 100.0;
-        set_ms(0);
-    }
-}
-
-void restore(void){
-    /* Reset */
-    LPTMR0->CSR = 0;
-    
-    /* Set interrupt handler */
-    NVIC_SetVector(LPTimer_IRQn, oldvector);
-    NVIC_EnableIRQ(LPTimer_IRQn);
-    
-    /* Clock at (1)MHz -> (1)tick/us */
-    LPTMR0->PSR = oldPSR;
-
-    if (remainder_count) {  
-        /* Set the compare register */
-        LPTMR0->CMR = remainder_count;
-        
-        /* Enable interrupt */
-        LPTMR0->CSR |= LPTMR_CSR_TIE_MASK;
-        
-        /* Start the timer */
-        LPTMR0->CSR |= LPTMR_CSR_TEN_MASK;
-    }
-}
-
-#endif
\ No newline at end of file

diff -r 65c04a02ad45 -r 5147cde086fd Device/WakeUp_LPC11XX.cpp
--- a/Device/WakeUp_LPC11XX.cpp	Tue Jul 04 07:59:06 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,165 +0,0 @@
-/**
-See homepage of this lib for LPC11xx special treatment
-**/
-
-#ifdef TARGET_LPC11XX_11CXX
-
-#include "WakeUp.h"
-#include "WakeInterruptIn.h"
-#include "pinmap.h"
-#include "toolchain.h"
-
-//Pin used, allowed pins = P0_1 (dp24, default), P0_8 (dp1) and P0_9 (dp2)
-//By defining WakeUpPin in for example your main.cpp this can be overridden
-WEAK PinName WakeUpPin = dp24;
-extern PinName WakeUpPin;
-
-WakeInterruptIn IRQ_in(WakeUpPin);
-PwmOut pulse_out(WakeUpPin);
-
-Callback<void()> WakeUp::callback;
-float WakeUp::cycles_per_ms = 20.0;
-
-static uint32_t old_clk_sel = ~0;
-static uint32_t SYSAHBCLKCTRL;
-static uint32_t TCR, PR, MR3;
-static LPC_TMR_TypeDef *WakeUpTimer;
-static uint32_t SYSAHBCLKCTRL_Sleep;
-static uint8_t WakeUpTimer_Match;
-
-static inline void restore(void);
-
-
-void WakeUp::set_ms(uint32_t ms)
-{
-    if (old_clk_sel == ~0) {                                //Only during first run
-        old_clk_sel = LPC_SYSCON->MAINCLKSEL;
-        SYSAHBCLKCTRL = LPC_SYSCON->SYSAHBCLKCTRL;
-        
-        switch(WakeUpPin) {
-            case dp24:
-                WakeUpTimer = LPC_TMR32B0;
-                SYSAHBCLKCTRL_Sleep = 0x15 | (1<<9);
-                WakeUpTimer_Match = 2;
-                break;
-            case dp1:
-                WakeUpTimer = LPC_TMR16B0;
-                SYSAHBCLKCTRL_Sleep = 0x15 | (1<<7);
-                WakeUpTimer_Match = 0;
-                break;
-            case dp2:
-                WakeUpTimer = LPC_TMR16B0;
-                SYSAHBCLKCTRL_Sleep = 0x15 | (1<<7);
-                WakeUpTimer_Match = 1;
-                break;
-            default:
-                error("Invalid WakeUp pin, choose dp1, dp2 or dp24");
-        }            
-    }
-        
-    if (ms != 0) {        
-        if (LPC_SYSCON->SYSAHBCLKCTRL != SYSAHBCLKCTRL_Sleep)    //Always when it is different from sleep settings
-            SYSAHBCLKCTRL = LPC_SYSCON->SYSAHBCLKCTRL;
-
-        LPC_SYSCON->PDRUNCFG &= ~PDRUNCFG_WDTOSC_PD;
-        LPC_SYSCON->PDSLEEPCFG = 0x000018B7 | (LPC_SYSCON->PDRUNCFG & (PDRUNCFG_WDTOSC_PD | PDRUNCFG_BOD_PD)); 
-        
-        //Set oscillator for 20kHz
-        LPC_SYSCON->WDTOSCCTRL = 14 | (1<<5);
-        
-        //Store old PWM
-        TCR = WakeUpTimer->TCR;
-        PR = WakeUpTimer->PR;
-        MR3 = WakeUpTimer->MR3;
-        
-        //Setup PWM
-        WakeUpTimer->TCR = TMR16B0TCR_CRST;
-        uint32_t ticks = (float)ms * cycles_per_ms;
-        
-        //whatever timer it is, we treat it as 16-bit (with PR that is 32-bit still, do the math, it is enough for this)
-        WakeUpTimer->PR = ticks >> 16;
-        WakeUpTimer->MR[WakeUpTimer_Match] = ticks / ((ticks >> 16) + 1);
-        WakeUpTimer->MR3 = 0xFFFF;
-                
-        IRQ_in.rise(irq_handler);
-        
-        //Disable most peripherals
-        LPC_SYSCON->SYSAHBCLKCTRL = SYSAHBCLKCTRL_Sleep;
-        
-        //Switch clock to WD OSC
-        LPC_SYSCON->MAINCLKSEL = 0x2;
-        LPC_SYSCON->MAINCLKUEN = 0;
-        LPC_SYSCON->MAINCLKUEN = MAINCLKUEN_ENA;
-        
-        //Enable PWM:
-        WakeUpTimer->TCR = TMR16B0TCR_CEN;
-    } else {
-        //Else restore normal settings
-        restore();
-    }
-    
-}
-
-void WakeUp::irq_handler(void)
-{    
-    restore();    
-    callback.call();
-}
-
-void WakeUp::calibrate(void)
-{
-    //Save current pin function
-    __IO uint32_t *reg = (__IO uint32_t*)(LPC_IOCON_BASE + (dp24 & 0xFF));
-    uint32_t old_pinfun = *reg;
-    
-    //Set oscillator for 20kHz
-    LPC_SYSCON->PDRUNCFG &= ~PDRUNCFG_WDTOSC_PD;
-    LPC_SYSCON->WDTOSCCTRL = 14 | (1<<5);
-    
-    //Direct WDT to the CLKOUT pin (dp24), sample it back
-    DigitalIn din(dp24);
-    Timer timer;
-    
-    LPC_SYSCON->CLKOUTDIV = 1;
-    LPC_SYSCON->CLKOUTCLKSEL = 0x2;
-    LPC_SYSCON->CLKOUTUEN = 0;
-    LPC_SYSCON->CLKOUTUEN = CLKOUTUEN_ENA;
-    pin_function(dp24, 1);
-    
-    int count = 0;
-    timer.start();
-    while (timer.read_ms() < 100) {
-        while (din.read() == 0);
-        while (din.read() == 1);
-        count++;
-    }
-    cycles_per_ms = (float)count / 100.0f;
-    
-    //Set old pin function back, disable CLKOUT
-    *reg = old_pinfun;
-    LPC_SYSCON->CLKOUTDIV = 0;
-}
-
-static inline void restore(void) {
-        
-    WakeUpTimer->MR[WakeUpTimer_Match] = 0xFFFFFFFF;
-
-    if (old_clk_sel == 3)                           //Was running on PLL
-        while(LPC_SYSCON->SYSPLLSTAT != SYSPLLSTAT_LOCK);
-    
-    if (old_clk_sel < 4) {  //If valid setting
-        LPC_SYSCON->MAINCLKSEL = old_clk_sel;
-        LPC_SYSCON->MAINCLKUEN = 0;
-        LPC_SYSCON->MAINCLKUEN = MAINCLKUEN_ENA;
-    }
-    
-    IRQ_in.rise(NULL);
-    
-    LPC_SYSCON->SYSAHBCLKCTRL = SYSAHBCLKCTRL; 
-    
-    WakeUpTimer->MR3 = MR3;
-    WakeUpTimer->PR = PR;
-    WakeUpTimer->TCR = TCR;
-}
-
-#endif

diff -r 65c04a02ad45 -r 5147cde086fd Device/WakeUp_LPC11u24.cpp
--- a/Device/WakeUp_LPC11u24.cpp	Tue Jul 04 07:59:06 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,63 +0,0 @@
-/**
-Due to lack of another option for the LPC11u24 the watchdog timer is used as wakeup source.
-Since if the reset on watchdog event bit is set, I cannot remove it again, this means if you also got watchdog code running
-the most likely result is that it just resets your board.
-**/
-
-
-#ifdef TARGET_LPC11U24
-
-#include "WakeUp.h"
-
-Callback<void()> WakeUp::callback;
-float WakeUp::cycles_per_ms = 5.0;
-
-void WakeUp::set_ms(uint32_t ms)
-{
-    if (ms != 0) {
-        LPC_SYSCON->SYSAHBCLKCTRL |= 0x8000;
-        LPC_SYSCON->PDRUNCFG &= ~(1<<6);
-        LPC_SYSCON->PDSLEEPCFG &= ~(1<<6);
-        LPC_SYSCON->STARTERP1 |= 1<<12;
-        
-        //Set oscillator for 20kHz = 5kHz after divide by 4 in WDT
-        LPC_SYSCON->WDTOSCCTRL = 14 | (1<<5);
-        
-        LPC_WWDT->MOD = 1;      //Enable WDT
-        LPC_WWDT->TC = (uint32_t)((float)ms * cycles_per_ms);
-        LPC_WWDT->CLKSEL = 1;   //WDTOSC
-        LPC_WWDT->WARNINT = 0;
-        
-        NVIC_SetVector(WDT_IRQn, (uint32_t)WakeUp::irq_handler);
-        
-        //Feeeeeed me
-        LPC_WWDT->FEED = 0xAA;
-        LPC_WWDT->FEED = 0x55;
-        
-        NVIC_EnableIRQ(WDT_IRQn);
-    } else
-        NVIC_DisableIRQ(WDT_IRQn);
-    
-}
-
-void WakeUp::irq_handler(void)
-{
-    LPC_WWDT->MOD = 1<<3;
-    callback.call();
-}
-
-void WakeUp::calibrate(void)
-{
-    cycles_per_ms = 5.0;
-    set_ms(1100);
-    wait_ms(10);    //Give time to sync
-    uint32_t count1 = LPC_WWDT->TV;
-    wait_ms(100);
-    uint32_t count2 = LPC_WWDT->TV;
-    set_ms(0);
-    count1 = count1 - count2;
-    
-    cycles_per_ms = count1 / 100.0;
-}
-
-#endif

diff -r 65c04a02ad45 -r 5147cde086fd Device/WakeUp_LPC812.cpp
--- a/Device/WakeUp_LPC812.cpp	Tue Jul 04 07:59:06 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-#ifdef TARGET_LPC812
-
-#include "WakeUp.h"
-
-Callback<void()> WakeUp::callback;
-float WakeUp::cycles_per_ms = 10.0;
-
-void WakeUp::set_ms(uint32_t ms)
-{
-    //Enable clock to register interface:
-    LPC_SYSCON->SYSAHBCLKCTRL |= 1<<9;
-
-    //Clear the counter:
-    LPC_WKT->CTRL |= 1<<2;
-    if (ms != 0) {
-        //Enable clock to register interface:
-        LPC_SYSCON->SYSAHBCLKCTRL |= 1<<9;
-
-        //Set 10kHz timer as source, and just to be sure clear status bit
-        LPC_WKT->CTRL = 3;
-
-        //Enable the 10kHz timer
-        LPC_PMU->DPDCTRL |= (1<<2) | (1<<3);
-
-        //Set interrupts
-        NVIC_SetVector(WKT_IRQn, (uint32_t)WakeUp::irq_handler);
-        NVIC_EnableIRQ(WKT_IRQn);
-
-        //Load the timer
-        LPC_WKT->COUNT = (uint32_t)((float)ms * cycles_per_ms);
-
-    } else {
-        //Disable clock to register interface:
-        LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<9);
-
-        //Disable the 10kHz timer
-        LPC_PMU->DPDCTRL &= ~((1<<2) | (1<<3));
-    }
-}
-
-void WakeUp::irq_handler(void)
-{
-    //Clear status
-    LPC_WKT->CTRL |= 2;
-
-    //Disable clock to register interface:
-    LPC_SYSCON->SYSAHBCLKCTRL &= ~(1<<9);
-
-    //Disable the 10kHz timer
-    LPC_PMU->DPDCTRL &= ~((1<<2) | (1<<3));
-
-    callback.call();
-}
-
-void WakeUp::calibrate(void)
-{
-    cycles_per_ms = 10.0;
-    set_ms(1100);
-    wait_ms(100);
-
-    uint32_t prevread = LPC_WKT->COUNT;
-    uint32_t read = LPC_WKT->COUNT;
-    while( read != prevread) {
-        prevread = read;
-        read = LPC_WKT->COUNT;
-    }
-
-    uint32_t ticks = 11000 - read;
-
-    cycles_per_ms = ticks / 100.0;
-    set_ms(0);
-}
-
-#endif

diff -r 65c04a02ad45 -r 5147cde086fd main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Nov 24 00:04:03 2017 +0000
@@ -0,0 +1,29 @@
+
+// Depending on the LED connections either the LED is off the 2 seconds
+// the target spends in deepsleep(), and on for the other second. Or it is inverted 
+ 
+#include "mbed.h"
+#include "WakeUp.h"
+ 
+DigitalOut myled(LED1);
+ 
+int main() {
+    //The low-power oscillator can be quite inaccurate on some targets
+    //this function calibrates it against the main clock
+    WakeUp::calibrate();
+   
+    while(1) {
+        //Set LED to zero
+        myled = 0;
+        
+        //Set wakeup time for 2 seconds
+        WakeUp::set_ms(2000);
+        
+        //Enter deepsleep, the program won't go beyond this point until it is woken up
+        sleep();
+  
+        //Set LED for 1 second to one
+        myled = 1;
+        wait(1);
+    }
+}
\ No newline at end of file

diff -r 65c04a02ad45 -r 5147cde086fd mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Nov 24 00:04:03 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/235179ab3f27
\ No newline at end of file