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MCUXpresso: Ensure the RTC OSC is running at bootup on Kinetis platforms #8872

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merged 1 commit into from
Dec 3, 2018
Merged

MCUXpresso: Ensure the RTC OSC is running at bootup on Kinetis platforms #8872

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39 changes: 31 additions & 8 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K66F/TARGET_FRDM/mbed_overrides.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,42 @@

#define CRC16
#include "crc.h"
#include "fsl_rtc.h"
#include "fsl_clock_config.h"

// called before main
void mbed_sdk_init()
{
rtc_config_t rtc_basic_config;
uint32_t u32cTPR_counter = 0;

BOARD_BootClockRUN();

CLOCK_EnableClock(kCLOCK_Rtc0);

/* Check if the Rtc oscillator is enabled */
if ((RTC->CR & RTC_CR_OSCE_MASK) == 0u) {
/*Init the RTC with default configuration*/
RTC_GetDefaultConfig(&rtc_basic_config);

/* Setup the 32K RTC OSC */
RTC_Init(RTC, &rtc_basic_config);

/* Enable the RTC 32KHz oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;

/* Start the RTC time counter */
RTC_StartTimer(RTC);

/* Verify TPR register reaches 4096 counts */
while (u32cTPR_counter < 4096) {
u32cTPR_counter = RTC->TPR;
}
/* 32kHz Oscillator is ready. */
RTC_Deinit(RTC);
}

CLOCK_DisableClock(kCLOCK_Rtc0);
}

// Change the NMI pin to an input. This allows NMI pin to
Expand All @@ -34,13 +64,6 @@ void NMI_Handler(void)
gpio_init_in(&gpio, PTA4);
}

// Enable the RTC oscillator if available on the board
void rtc_setup_oscillator(RTC_Type *base)
{
/* Enable the RTC oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;
}

// Provide ethernet devices with a semi-unique MAC address from the UUID
void mbed_mac_address(char *mac)
{
Expand All @@ -55,7 +78,7 @@ void mbed_mac_address(char *mac)

// generate three CRC16's using different slices of the UUID
MAC[0] = crcSlow((const uint8_t *)UID, 8); // most significant half-word
MAC[1] = crcSlow((const uint8_t *)UID, 12);
MAC[1] = crcSlow((const uint8_t *)UID, 12);
MAC[2] = crcSlow((const uint8_t *)UID, 16); // least significant half word

// The network stack expects an array of 6 bytes
Expand Down
37 changes: 30 additions & 7 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K82F/TARGET_FRDM/mbed_overrides.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,12 +14,42 @@
* limitations under the License.
*/
#include "gpio_api.h"
#include "fsl_rtc.h"
#include "fsl_clock_config.h"

// called before main
void mbed_sdk_init()
{
rtc_config_t rtc_basic_config;
uint32_t u32cTPR_counter = 0;

BOARD_BootClockRUN();

CLOCK_EnableClock(kCLOCK_Rtc0);

/* Check if the Rtc oscillator is enabled */
if ((RTC->CR & RTC_CR_OSCE_MASK) == 0u) {
/*Init the RTC with default configuration*/
RTC_GetDefaultConfig(&rtc_basic_config);

/* Setup the 32K RTC OSC */
RTC_Init(RTC, &rtc_basic_config);

/* Enable the RTC 32KHz oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;

/* Start the RTC time counter */
RTC_StartTimer(RTC);

/* Verify TPR register reaches 4096 counts */
while (u32cTPR_counter < 4096) {
u32cTPR_counter = RTC->TPR;
}
/* 32kHz Oscillator is ready. */
RTC_Deinit(RTC);
}

CLOCK_DisableClock(kCLOCK_Rtc0);
}

// Change the NMI pin to an input. This allows NMI pin to
Expand All @@ -31,13 +61,6 @@ void NMI_Handler(void)
gpio_init_in(&gpio, PTA4);
}

// Enable the RTC oscillator if available on the board
void rtc_setup_oscillator(RTC_Type *base)
{
/* Enable the RTC oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;
}

// Set the UART clock source
void serial_clock_init(void)
{
Expand Down
39 changes: 31 additions & 8 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_K82F/TARGET_UBRIDGE/mbed_overrides.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17,13 +17,18 @@
#include "fsl_smc.h"
#include "fsl_rcm.h"
#include "fsl_pmc.h"
#include "fsl_rtc.h"
#include "fsl_clock_config.h"

//!< this contains the wakeup source
rcm_reset_source_t kinetisResetSource;

// called before main
void mbed_sdk_init() {
void mbed_sdk_init()
{
rtc_config_t rtc_basic_config;
uint32_t u32cTPR_counter = 0;

SMC_SetPowerModeProtection(SMC, kSMC_AllowPowerModeAll);

// check the power mode source
Expand All @@ -36,6 +41,31 @@ void mbed_sdk_init() {

BOARD_BootClockRUN();

CLOCK_EnableClock(kCLOCK_Rtc0);

/* Check if the Rtc oscillator is enabled */
if ((RTC->CR & RTC_CR_OSCE_MASK) == 0u) {
/*Init the RTC with default configuration*/
RTC_GetDefaultConfig(&rtc_basic_config);

/* Setup the 32K RTC OSC */
RTC_Init(RTC, &rtc_basic_config);

/* Enable the RTC 32KHz oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;

/* Start the RTC time counter */
RTC_StartTimer(RTC);

/* Verify TPR register reaches 4096 counts */
while (u32cTPR_counter < 4096) {
u32cTPR_counter = RTC->TPR;
}
/* 32kHz Oscillator is ready. */
RTC_Deinit(RTC);
}

CLOCK_DisableClock(kCLOCK_Rtc0);
}

// Change the NMI pin to an input. This allows NMI pin to
Expand All @@ -47,13 +77,6 @@ void NMI_Handler(void)
gpio_init_in(&gpio, PTA4);
}

// Enable the RTC oscillator if available on the board
void rtc_setup_oscillator(RTC_Type *base)
{
/* Enable the RTC oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;
}

// Set the UART clock source
void serial_clock_init(void)
{
Expand Down
35 changes: 29 additions & 6 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL27Z/TARGET_FRDM/mbed_overrides.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,22 +15,45 @@
*/
#include "gpio_api.h"
#include "pinmap.h"
#include "fsl_rtc.h"
#include "fsl_clock_config.h"

// called before main - implement here if board needs it otherwise, let
// the application override this if necessary
void mbed_sdk_init()
{
rtc_config_t rtc_basic_config;
uint32_t u32cTPR_counter = 0;

BOARD_BootClockRUN();
/* Set the TPM clock source to be IRC48M, do not change as TPM2 is used for the usticker */
CLOCK_SetTpmClock(1U);
}

// Enable the RTC oscillator if available on the board
void rtc_setup_oscillator(RTC_Type *base)
{
/* Enable the RTC oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;
CLOCK_EnableClock(kCLOCK_Rtc0);

/* Check if the Rtc oscillator is enabled */
if ((RTC->CR & RTC_CR_OSCE_MASK) == 0u) {
/*Init the RTC with default configuration*/
RTC_GetDefaultConfig(&rtc_basic_config);

/* Setup the 32K RTC OSC */
RTC_Init(RTC, &rtc_basic_config);

/* Enable the RTC 32KHz oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;

/* Start the RTC time counter */
RTC_StartTimer(RTC);

/* Verify TPR register reaches 4096 counts */
while (u32cTPR_counter < 4096) {
u32cTPR_counter = RTC->TPR;
}
/* 32kHz Oscillator is ready. */
RTC_Deinit(RTC);
}

CLOCK_DisableClock(kCLOCK_Rtc0);
}

// Change the NMI pin to an input. This allows NMI pin to
Expand Down
35 changes: 29 additions & 6 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL43Z/TARGET_FRDM/mbed_overrides.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,22 +15,45 @@
*/
#include "gpio_api.h"
#include "pinmap.h"
#include "fsl_rtc.h"
#include "fsl_clock_config.h"

// called before main - implement here if board needs it otherwise, let
// the application override this if necessary
void mbed_sdk_init()
{
rtc_config_t rtc_basic_config;
uint32_t u32cTPR_counter = 0;

BOARD_BootClockRUN();
/* Set the TPM clock source to be IRC48M, do not change as TPM2 is used for the usticker */
CLOCK_SetTpmClock(1U);
}

// Enable the RTC oscillator if available on the board
void rtc_setup_oscillator(RTC_Type *base)
{
/* Enable the RTC oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;
CLOCK_EnableClock(kCLOCK_Rtc0);

/* Check if the Rtc oscillator is enabled */
if ((RTC->CR & RTC_CR_OSCE_MASK) == 0u) {
/*Init the RTC with default configuration*/
RTC_GetDefaultConfig(&rtc_basic_config);

/* Setup the 32K RTC OSC */
RTC_Init(RTC, &rtc_basic_config);

/* Enable the RTC 32KHz oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;

/* Start the RTC time counter */
RTC_StartTimer(RTC);

/* Verify TPR register reaches 4096 counts */
while (u32cTPR_counter < 4096) {
u32cTPR_counter = RTC->TPR;
}
/* 32kHz Oscillator is ready. */
RTC_Deinit(RTC);
}

CLOCK_DisableClock(kCLOCK_Rtc0);
}

// Change the NMI pin to an input. This allows NMI pin to
Expand Down
35 changes: 29 additions & 6 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_KL82Z/TARGET_FRDM/mbed_overrides.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,20 +15,43 @@
*/
#include "gpio_api.h"
#include "pinmap.h"
#include "fsl_rtc.h"
#include "fsl_clock_config.h"

// called before main - implement here if board needs it otherwise, let
// the application override this if necessary
void mbed_sdk_init()
{
rtc_config_t rtc_basic_config;
uint32_t u32cTPR_counter = 0;

BOARD_BootClockRUN();
}

// Enable the RTC oscillator if available on the board
void rtc_setup_oscillator(RTC_Type *base)
{
/* Enable the RTC oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;
CLOCK_EnableClock(kCLOCK_Rtc0);

/* Check if the Rtc oscillator is enabled */
if ((RTC->CR & RTC_CR_OSCE_MASK) == 0u) {
/*Init the RTC with default configuration*/
RTC_GetDefaultConfig(&rtc_basic_config);

/* Setup the 32K RTC OSC */
RTC_Init(RTC, &rtc_basic_config);

/* Enable the RTC 32KHz oscillator */
RTC->CR |= RTC_CR_OSCE_MASK;

/* Start the RTC time counter */
RTC_StartTimer(RTC);

/* Verify TPR register reaches 4096 counts */
while (u32cTPR_counter < 4096) {
u32cTPR_counter = RTC->TPR;
}
/* 32kHz Oscillator is ready. */
RTC_Deinit(RTC);
}

CLOCK_DisableClock(kCLOCK_Rtc0);
}

// Change the NMI pin to an input. This allows NMI pin to
Expand Down
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