722 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			722 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
|   | /* 
 | ||
|  |  * The MIT License (MIT) | ||
|  |  * | ||
|  |  * Copyright (c) 2021 Rafael Silva (@perigoso) | ||
|  |  * Copyright (c) 2021 Ha Thach (tinyusb.org) | ||
|  |  * | ||
|  |  * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
|  |  * of this software and associated documentation files (the "Software"), to deal | ||
|  |  * in the Software without restriction, including without limitation the rights | ||
|  |  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
|  |  * copies of the Software, and to permit persons to whom the Software is | ||
|  |  * furnished to do so, subject to the following conditions: | ||
|  |  * | ||
|  |  * The above copyright notice and this permission notice shall be included in | ||
|  |  * all copies or substantial portions of the Software. | ||
|  |  * | ||
|  |  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
|  |  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
|  |  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
|  |  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
|  |  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
|  |  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
|  |  * THE SOFTWARE. | ||
|  |  * | ||
|  |  * This file is part of the TinyUSB stack. | ||
|  |  */ | ||
|  | 
 | ||
|  | #include "../board.h"
 | ||
|  | 
 | ||
|  | #include "em_device.h"
 | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* MACRO TYPEDEF CONSTANT ENUM                                        */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | #define LED_PORT              0     // A
 | ||
|  | #define LED_PIN_R             12    // 12
 | ||
|  | #define LED_PIN_B             13    // 13
 | ||
|  | #define LED_PIN_G             14    // 14
 | ||
|  | #define LED_STATE_ON          0     // active-low
 | ||
|  | 
 | ||
|  | #define BUTTON_PORT           3     // D
 | ||
|  | #define BUTTON_PIN            5     // 5
 | ||
|  | #define BUTTON_STATE_ACTIVE   0     // active-low
 | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* Forward USB interrupt events to TinyUSB IRQ Handler                */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | void USB_IRQHandler(void) | ||
|  | { | ||
|  |   tud_int_handler(0); | ||
|  | } | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* Fault Handlers                                                     */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | void HardFault_Handler(void) | ||
|  | { | ||
|  |   asm("bkpt"); | ||
|  | } | ||
|  | 
 | ||
|  | void MemManage_Handler(void) | ||
|  | { | ||
|  |   asm("bkpt"); | ||
|  | } | ||
|  | 
 | ||
|  | void BusFault_Handler(void) | ||
|  | { | ||
|  |   asm("bkpt"); | ||
|  | } | ||
|  | 
 | ||
|  | void UsageFault_Handler(void) | ||
|  | { | ||
|  |   asm("bkpt"); | ||
|  | } | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* Startup                                                            */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | // Required by __libc_init_array in startup code if we are compiling using
 | ||
|  | // -nostdlib/-nostartfiles.
 | ||
|  | void _init(void) | ||
|  | { | ||
|  | 
 | ||
|  | } | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* Initing Funcs                                                      */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | void emu_init(uint8_t immediate_switch) | ||
|  | { | ||
|  |   EMU->PWRCTRL = (immediate_switch ? EMU_PWRCTRL_IMMEDIATEPWRSWITCH : 0) | EMU_PWRCTRL_REGPWRSEL_DVDD | EMU_PWRCTRL_ANASW_AVDD; | ||
|  | } | ||
|  | 
 | ||
|  | void emu_reg_init(float target_voltage) | ||
|  | { | ||
|  |     if(target_voltage < 2300.f || target_voltage >= 3800.f) | ||
|  |         return; | ||
|  | 
 | ||
|  |     uint8_t level = ((target_voltage - 2300.f) / 100.f); | ||
|  | 
 | ||
|  |     EMU->R5VCTRL = EMU_R5VCTRL_INPUTMODE_AUTO; | ||
|  | 
 | ||
|  |     EMU->R5VOUTLEVEL = level; /* Reg output to 3.3V*/ | ||
|  | } | ||
|  | 
 | ||
|  | void emu_dcdc_init(float target_voltage, float max_ln_current, float max_lp_current, float max_reverse_current) | ||
|  | { | ||
|  |     if(target_voltage < 1800.f || target_voltage >= 3000.f) | ||
|  |         return; | ||
|  | 
 | ||
|  |     if(max_ln_current <= 0.f || max_ln_current > 200.f) | ||
|  |         return; | ||
|  | 
 | ||
|  |     if(max_lp_current <= 0.f || max_lp_current > 10000.f) | ||
|  |         return; | ||
|  | 
 | ||
|  |     if(max_reverse_current < 0.f || max_reverse_current > 160.f) | ||
|  |         return; | ||
|  | 
 | ||
|  |     // Low Power & Low Noise current limit
 | ||
|  |     uint8_t lp_bias = 0; | ||
|  | 
 | ||
|  |     if(max_lp_current < 75.f) | ||
|  |         lp_bias = 0; | ||
|  |     else if(max_lp_current < 500.f) | ||
|  |         lp_bias = 1; | ||
|  |     else if(max_lp_current < 2500.f) | ||
|  |         lp_bias = 2; | ||
|  |     else | ||
|  |         lp_bias = 3; | ||
|  | 
 | ||
|  |     EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~_EMU_DCDCMISCCTRL_LPCMPBIASEM234H_MASK) | ((uint32_t)lp_bias << _EMU_DCDCMISCCTRL_LPCMPBIASEM234H_SHIFT); | ||
|  |     EMU->DCDCMISCCTRL |= EMU_DCDCMISCCTRL_LNFORCECCM; // Force CCM to prevent reverse current
 | ||
|  |     EMU->DCDCLPCTRL |= EMU_DCDCLPCTRL_LPVREFDUTYEN; // Enable duty cycling of the bias for LP mode
 | ||
|  |     EMU->DCDCLNFREQCTRL = (EMU->DCDCLNFREQCTRL & ~_EMU_DCDCLNFREQCTRL_RCOBAND_MASK) | 4; // Set RCO Band to 7MHz
 | ||
|  | 
 | ||
|  |     uint8_t fet_count = 0; | ||
|  | 
 | ||
|  |     if(max_ln_current < 20.f) | ||
|  |         fet_count = 4; | ||
|  |     else if(max_ln_current >= 20.f && max_ln_current < 40.f) | ||
|  |         fet_count = 8; | ||
|  |     else | ||
|  |         fet_count = 16; | ||
|  | 
 | ||
|  |     EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~_EMU_DCDCMISCCTRL_NFETCNT_MASK) | ((uint32_t)(fet_count - 1) << _EMU_DCDCMISCCTRL_NFETCNT_SHIFT); | ||
|  |     EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~_EMU_DCDCMISCCTRL_PFETCNT_MASK) | ((uint32_t)(fet_count - 1) << _EMU_DCDCMISCCTRL_PFETCNT_SHIFT); | ||
|  | 
 | ||
|  |     uint8_t ln_current_limit = (((max_ln_current + 40.f) * 1.5f) / (5.f * fet_count)) - 1; | ||
|  |     uint8_t lp_current_limit = 1; // Recommended value
 | ||
|  | 
 | ||
|  |     EMU->DCDCMISCCTRL = (EMU->DCDCMISCCTRL & ~(_EMU_DCDCMISCCTRL_LNCLIMILIMSEL_MASK | _EMU_DCDCMISCCTRL_LPCLIMILIMSEL_MASK)) | ((uint32_t)ln_current_limit << _EMU_DCDCMISCCTRL_LNCLIMILIMSEL_SHIFT) | ((uint32_t)lp_current_limit << _EMU_DCDCMISCCTRL_LPCLIMILIMSEL_SHIFT); | ||
|  | 
 | ||
|  |     uint8_t z_det_limit = ((max_reverse_current + 40.f) * 1.5f) / (2.5f * fet_count); | ||
|  | 
 | ||
|  |     EMU->DCDCZDETCTRL = (EMU->DCDCZDETCTRL & ~_EMU_DCDCZDETCTRL_ZDETILIMSEL_MASK) | ((uint32_t)z_det_limit << _EMU_DCDCZDETCTRL_ZDETILIMSEL_SHIFT); | ||
|  | 
 | ||
|  |     EMU->DCDCCLIMCTRL |= EMU_DCDCCLIMCTRL_BYPLIMEN; // Enable bypass current limiter to prevent overcurrent when switching modes
 | ||
|  | 
 | ||
|  |     // Output Voltage
 | ||
|  |     if(target_voltage > 1800.f) | ||
|  |     { | ||
|  |         float max_vout = 3000.f; | ||
|  |         float min_vout = 1800.f; | ||
|  |         float diff_vout = max_vout - min_vout; | ||
|  | 
 | ||
|  |         uint8_t ln_vref_high = (DEVINFO->DCDCLNVCTRL0 & _DEVINFO_DCDCLNVCTRL0_3V0LNATT1_MASK) >> _DEVINFO_DCDCLNVCTRL0_3V0LNATT1_SHIFT; | ||
|  |         uint8_t ln_vref_low = (DEVINFO->DCDCLNVCTRL0 & _DEVINFO_DCDCLNVCTRL0_1V8LNATT1_MASK) >> _DEVINFO_DCDCLNVCTRL0_1V8LNATT1_SHIFT; | ||
|  | 
 | ||
|  |         uint8_t ln_vref = ((target_voltage - min_vout) * (float)(ln_vref_high - ln_vref_low)) / diff_vout; | ||
|  |         ln_vref += ln_vref_low; | ||
|  | 
 | ||
|  |         EMU->DCDCLNVCTRL = (ln_vref << _EMU_DCDCLNVCTRL_LNVREF_SHIFT) | EMU_DCDCLNVCTRL_LNATT; | ||
|  | 
 | ||
|  |         uint8_t lp_vref_low = 0; | ||
|  |         uint8_t lp_vref_high = 0; | ||
|  | 
 | ||
|  |         switch(lp_bias) | ||
|  |         { | ||
|  |             case 0: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL2 & _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS0_MASK) >> _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS0_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL2 & _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS0_MASK) >> _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS0_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |             case 1: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL2 & _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS1_MASK) >> _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS1_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL2 & _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS1_MASK) >> _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS1_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |             case 2: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL3 & _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS2_MASK) >> _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS2_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL3 & _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS2_MASK) >> _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS2_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |             case 3: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL3 & _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS3_MASK) >> _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS3_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL3 & _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS3_MASK) >> _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS3_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |         } | ||
|  | 
 | ||
|  |         uint8_t lp_vref = ((target_voltage - min_vout) * (float)(lp_vref_high - lp_vref_low)) / diff_vout; | ||
|  |         lp_vref += lp_vref_low; | ||
|  | 
 | ||
|  |         EMU->DCDCLPVCTRL = (lp_vref << _EMU_DCDCLPVCTRL_LPVREF_SHIFT) | EMU_DCDCLPVCTRL_LPATT; | ||
|  |     } | ||
|  |     else | ||
|  |     { | ||
|  |         float max_vout = 1800.f; | ||
|  |         float min_vout = 1200.f; | ||
|  |         float diff_vout = max_vout - min_vout; | ||
|  | 
 | ||
|  |         uint8_t ln_vref_high = (DEVINFO->DCDCLNVCTRL0 & _DEVINFO_DCDCLNVCTRL0_1V8LNATT0_MASK) >> _DEVINFO_DCDCLNVCTRL0_1V8LNATT0_SHIFT; | ||
|  |         uint8_t ln_vref_low = (DEVINFO->DCDCLNVCTRL0 & _DEVINFO_DCDCLNVCTRL0_1V2LNATT0_MASK) >> _DEVINFO_DCDCLNVCTRL0_1V2LNATT0_SHIFT; | ||
|  | 
 | ||
|  |         uint8_t ln_vref = ((target_voltage - min_vout) * (float)(ln_vref_high - ln_vref_low)) / diff_vout; | ||
|  |         ln_vref += ln_vref_low; | ||
|  | 
 | ||
|  |         EMU->DCDCLNVCTRL = ln_vref << _EMU_DCDCLNVCTRL_LNVREF_SHIFT; | ||
|  | 
 | ||
|  |         uint8_t lp_vref_low = 0; | ||
|  |         uint8_t lp_vref_high = 0; | ||
|  | 
 | ||
|  |         switch(lp_bias) | ||
|  |         { | ||
|  |             case 0: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL0 & _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS0_MASK) >> _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS0_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL0 & _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS0_MASK) >> _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS0_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |             case 1: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL0 & _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS1_MASK) >> _DEVINFO_DCDCLPVCTRL2_3V0LPATT1LPCMPBIAS1_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL0 & _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS1_MASK) >> _DEVINFO_DCDCLPVCTRL2_1V8LPATT1LPCMPBIAS1_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |             case 2: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL1 & _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS2_MASK) >> _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS2_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL1 & _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS2_MASK) >> _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS2_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |             case 3: | ||
|  |             { | ||
|  |                 lp_vref_high = (DEVINFO->DCDCLPVCTRL1 & _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS3_MASK) >> _DEVINFO_DCDCLPVCTRL3_3V0LPATT1LPCMPBIAS3_SHIFT; | ||
|  |                 lp_vref_low = (DEVINFO->DCDCLPVCTRL1 & _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS3_MASK) >> _DEVINFO_DCDCLPVCTRL3_1V8LPATT1LPCMPBIAS3_SHIFT; | ||
|  |             } | ||
|  |             break; | ||
|  |         } | ||
|  | 
 | ||
|  |         uint8_t lp_vref = ((target_voltage - min_vout) * (float)(lp_vref_high - lp_vref_low)) / diff_vout; | ||
|  |         lp_vref += lp_vref_low; | ||
|  | 
 | ||
|  |         EMU->DCDCLPVCTRL = lp_vref << _EMU_DCDCLPVCTRL_LPVREF_SHIFT; | ||
|  |     } | ||
|  | 
 | ||
|  |     EMU->DCDCLPCTRL = (EMU->DCDCLPCTRL & ~_EMU_DCDCLPCTRL_LPCMPHYSSELEM234H_MASK) | (((DEVINFO->DCDCLPCMPHYSSEL1 & (((uint32_t)0xFF) << (lp_bias * 8))) >> (lp_bias * 8)) << _EMU_DCDCLPCTRL_LPCMPHYSSELEM234H_SHIFT); | ||
|  | 
 | ||
|  |     while(EMU->DCDCSYNC & EMU_DCDCSYNC_DCDCCTRLBUSY); // Wait for configuration to write
 | ||
|  | 
 | ||
|  |     // Calibration
 | ||
|  |     //EMU->DCDCLNCOMPCTRL = 0x57204077; // Compensation for 1uF DCDC capacitor
 | ||
|  |     EMU->DCDCLNCOMPCTRL = 0xB7102137; // Compensation for 4.7uF DCDC capacitor
 | ||
|  | 
 | ||
|  |     // Enable DCDC converter
 | ||
|  |     EMU->DCDCCTRL = EMU_DCDCCTRL_DCDCMODEEM4_EM4LOWPOWER | EMU_DCDCCTRL_DCDCMODEEM23_EM23LOWPOWER | EMU_DCDCCTRL_DCDCMODE_LOWNOISE; | ||
|  | 
 | ||
|  |     // Switch digital domain to DVDD
 | ||
|  |     EMU->PWRCTRL = EMU_PWRCTRL_REGPWRSEL_DVDD | EMU_PWRCTRL_ANASW_AVDD; | ||
|  | } | ||
|  | 
 | ||
|  | void cmu_hfxo_startup_calib(uint16_t ib_trim, uint16_t c_tune) | ||
|  | { | ||
|  |   if(CMU->STATUS & CMU_STATUS_HFXOENS) | ||
|  |       return; | ||
|  | 
 | ||
|  |   CMU->HFXOSTARTUPCTRL = (CMU->HFXOSTARTUPCTRL & ~(_CMU_HFXOSTARTUPCTRL_CTUNE_MASK | _CMU_HFXOSTARTUPCTRL_IBTRIMXOCORE_MASK)) | (((uint32_t)c_tune << _CMU_HFXOSTARTUPCTRL_CTUNE_SHIFT) & _CMU_HFXOSTARTUPCTRL_CTUNE_MASK) | (((uint32_t)ib_trim << _CMU_HFXOSTARTUPCTRL_IBTRIMXOCORE_SHIFT) & _CMU_HFXOSTARTUPCTRL_IBTRIMXOCORE_MASK); | ||
|  | } | ||
|  | 
 | ||
|  | void cmu_hfxo_steady_calib(uint16_t ib_trim, uint16_t c_tune) | ||
|  | { | ||
|  |   if(CMU->STATUS & CMU_STATUS_HFXOENS) | ||
|  |       return; | ||
|  | 
 | ||
|  |   CMU->HFXOSTEADYSTATECTRL = (CMU->HFXOSTEADYSTATECTRL & ~(_CMU_HFXOSTEADYSTATECTRL_CTUNE_MASK | _CMU_HFXOSTEADYSTATECTRL_IBTRIMXOCORE_MASK)) | (((uint32_t)c_tune << _CMU_HFXOSTEADYSTATECTRL_CTUNE_SHIFT) & _CMU_HFXOSTEADYSTATECTRL_CTUNE_MASK) | (((uint32_t)ib_trim << _CMU_HFXOSTEADYSTATECTRL_IBTRIMXOCORE_SHIFT) & _CMU_HFXOSTEADYSTATECTRL_IBTRIMXOCORE_MASK); | ||
|  | } | ||
|  | 
 | ||
|  | void cmu_hfrco_calib(uint32_t calibration) | ||
|  | { | ||
|  |     if(CMU->STATUS & CMU_STATUS_DPLLENS) | ||
|  |         return; | ||
|  | 
 | ||
|  |     while(CMU->SYNCBUSY & CMU_SYNCBUSY_HFRCOBSY); | ||
|  | 
 | ||
|  |     CMU->HFRCOCTRL = calibration; | ||
|  | 
 | ||
|  |     while(CMU->SYNCBUSY & CMU_SYNCBUSY_HFRCOBSY); | ||
|  | } | ||
|  | 
 | ||
|  | void cmu_ushfrco_calib(uint8_t enable, uint32_t calibration) | ||
|  | { | ||
|  |     if(CMU->USBCRCTRL & CMU_USBCRCTRL_USBCREN) | ||
|  |         return; | ||
|  | 
 | ||
|  |     if(!enable) | ||
|  |     { | ||
|  |         CMU->OSCENCMD = CMU_OSCENCMD_USHFRCODIS; | ||
|  |         while(CMU->STATUS & CMU_STATUS_USHFRCOENS); | ||
|  | 
 | ||
|  |         return; | ||
|  |     } | ||
|  | 
 | ||
|  |     while(CMU->SYNCBUSY & CMU_SYNCBUSY_USHFRCOBSY); | ||
|  | 
 | ||
|  |     CMU->USHFRCOCTRL = calibration | CMU_USHFRCOCTRL_FINETUNINGEN; | ||
|  | 
 | ||
|  |     while(CMU->SYNCBUSY & CMU_SYNCBUSY_USHFRCOBSY); | ||
|  | 
 | ||
|  |     if(enable && !(CMU->STATUS & CMU_STATUS_USHFRCOENS)) | ||
|  |     { | ||
|  |         CMU->OSCENCMD = CMU_OSCENCMD_USHFRCOEN; | ||
|  | 
 | ||
|  |         while(!(CMU->STATUS & CMU_STATUS_USHFRCORDY)); | ||
|  |     } | ||
|  | } | ||
|  | 
 | ||
|  | void cmu_auxhfrco_calib(uint8_t enable, uint32_t calibration) | ||
|  | { | ||
|  |     if(!enable) | ||
|  |     { | ||
|  |         CMU->OSCENCMD = CMU_OSCENCMD_AUXHFRCODIS; | ||
|  |         while(CMU->STATUS & CMU_STATUS_AUXHFRCOENS); | ||
|  | 
 | ||
|  |         return; | ||
|  |     } | ||
|  | 
 | ||
|  |     while(CMU->SYNCBUSY & CMU_SYNCBUSY_AUXHFRCOBSY); | ||
|  | 
 | ||
|  |     CMU->AUXHFRCOCTRL = calibration; | ||
|  | 
 | ||
|  |     while(CMU->SYNCBUSY & CMU_SYNCBUSY_AUXHFRCOBSY); | ||
|  | 
 | ||
|  |     if(enable && !(CMU->STATUS & CMU_STATUS_AUXHFRCOENS)) | ||
|  |     { | ||
|  |         CMU->OSCENCMD = CMU_OSCENCMD_AUXHFRCOEN; | ||
|  | 
 | ||
|  |         while(!(CMU->STATUS & CMU_STATUS_AUXHFRCORDY)); | ||
|  |     } | ||
|  | } | ||
|  | 
 | ||
|  | 
 | ||
|  | void cmu_init(void) | ||
|  | { | ||
|  |     // Change SDIO clock to HFXO if HFRCO selected and disable it
 | ||
|  |     CMU->SDIOCTRL = CMU_SDIOCTRL_SDIOCLKDIS | CMU_SDIOCTRL_SDIOCLKSEL_HFXO; | ||
|  |     while(CMU->STATUS & CMU_STATUS_SDIOCLKENS); | ||
|  | 
 | ||
|  |     // Change QSPI clock to HFXO if HFRCO selected and disable it
 | ||
|  |     CMU->QSPICTRL = CMU_QSPICTRL_QSPI0CLKDIS | CMU_QSPICTRL_QSPI0CLKSEL_HFXO; | ||
|  |     while(CMU->STATUS & CMU_STATUS_QSPI0CLKENS); | ||
|  | 
 | ||
|  |     // Disable DPLL if enabled
 | ||
|  |     if(CMU->STATUS & CMU_STATUS_DPLLENS) | ||
|  |     { | ||
|  |         CMU->OSCENCMD = CMU_OSCENCMD_DPLLDIS; | ||
|  |         while(CMU->STATUS & CMU_STATUS_DPLLENS); | ||
|  |     } | ||
|  | 
 | ||
|  |     // Disable HFXO if enabled
 | ||
|  |     if(CMU->STATUS & CMU_STATUS_HFXOENS) | ||
|  |     { | ||
|  |         CMU->OSCENCMD = CMU_OSCENCMD_HFXODIS; | ||
|  |         while(CMU->STATUS & CMU_STATUS_HFXOENS); | ||
|  |     } | ||
|  | 
 | ||
|  |     // Setup HFXO
 | ||
|  |     CMU->HFXOCTRL = CMU_HFXOCTRL_PEAKDETMODE_AUTOCMD | CMU_HFXOCTRL_MODE_XTAL; | ||
|  |     CMU->HFXOCTRL1 = CMU_HFXOCTRL1_PEAKDETTHR_DEFAULT; | ||
|  |     CMU->HFXOSTEADYSTATECTRL |= CMU_HFXOSTEADYSTATECTRL_PEAKMONEN; | ||
|  |     CMU->HFXOTIMEOUTCTRL = (7 << _CMU_HFXOTIMEOUTCTRL_PEAKDETTIMEOUT_SHIFT) | (8 << _CMU_HFXOTIMEOUTCTRL_STEADYTIMEOUT_SHIFT) | (12 << _CMU_HFXOTIMEOUTCTRL_STARTUPTIMEOUT_SHIFT); | ||
|  | 
 | ||
|  |     // Enable HFXO and wait for it to be ready
 | ||
|  |     CMU->OSCENCMD = CMU_OSCENCMD_HFXOEN; | ||
|  |     while(!(CMU->STATUS & CMU_STATUS_HFXORDY)); | ||
|  | 
 | ||
|  |     // Switch main clock to HFXO and wait for it to be selected
 | ||
|  |     CMU->HFCLKSEL = CMU_HFCLKSEL_HF_HFXO; | ||
|  |     while((CMU->HFCLKSTATUS & _CMU_HFCLKSTATUS_SELECTED_MASK) != CMU_HFCLKSTATUS_SELECTED_HFXO); | ||
|  | 
 | ||
|  |     // Calibrate HFRCO for 72MHz and enable tunning by PLL
 | ||
|  |     cmu_hfrco_calib((DEVINFO->HFRCOCAL16) | CMU_HFRCOCTRL_FINETUNINGEN); | ||
|  | 
 | ||
|  |     // Setup the PLL
 | ||
|  |     CMU->DPLLCTRL = CMU_DPLLCTRL_REFSEL_HFXO | CMU_DPLLCTRL_AUTORECOVER | CMU_DPLLCTRL_EDGESEL_RISE | CMU_DPLLCTRL_MODE_FREQLL; | ||
|  |     // 72MHz = 50MHz (HFXO) * 1.44 (144/100)
 | ||
|  |     CMU->DPLLCTRL1 = (143 << _CMU_DPLLCTRL1_N_SHIFT) | (99 << _CMU_DPLLCTRL1_M_SHIFT); // fHFRCO = fHFXO * (N + 1) / (M + 1)
 | ||
|  | 
 | ||
|  |     // Enable the DPLL and wait for it to be ready
 | ||
|  |     CMU->OSCENCMD = CMU_OSCENCMD_DPLLEN; | ||
|  |     while(!(CMU->STATUS & CMU_STATUS_DPLLRDY)); | ||
|  | 
 | ||
|  |     // Config peripherals for the new frequency (freq > 32MHz)
 | ||
|  |     CMU->CTRL |= CMU_CTRL_WSHFLE; | ||
|  | 
 | ||
|  |     // Set prescalers
 | ||
|  |     CMU->HFPRESC = CMU_HFPRESC_HFCLKLEPRESC_DIV2 | CMU_HFPRESC_PRESC_NODIVISION; | ||
|  |     CMU->HFBUSPRESC = 1 << _CMU_HFBUSPRESC_PRESC_SHIFT; | ||
|  |     CMU->HFCOREPRESC = 0 << _CMU_HFCOREPRESC_PRESC_SHIFT; | ||
|  |     CMU->HFPERPRESC = 1 << _CMU_HFPERPRESC_PRESC_SHIFT; | ||
|  |     CMU->HFEXPPRESC = 0 << _CMU_HFEXPPRESC_PRESC_SHIFT; | ||
|  |     CMU->HFPERPRESCB = 0 << _CMU_HFPERPRESCB_PRESC_SHIFT; | ||
|  |     CMU->HFPERPRESCC = 1 << _CMU_HFPERPRESCC_PRESC_SHIFT; | ||
|  | 
 | ||
|  |     // Enable clock to peripherals
 | ||
|  |     CMU->CTRL |= CMU_CTRL_HFPERCLKEN; | ||
|  | 
 | ||
|  |     // Switch main clock to HFRCO and wait for it to be selected
 | ||
|  |     CMU->HFCLKSEL = CMU_HFCLKSEL_HF_HFRCO; | ||
|  |     while((CMU->HFCLKSTATUS & _CMU_HFCLKSTATUS_SELECTED_MASK) != CMU_HFCLKSTATUS_SELECTED_HFRCO); | ||
|  | 
 | ||
|  |     // LFA Clock
 | ||
|  |     CMU->LFACLKSEL = CMU_LFACLKSEL_LFA_LFRCO; | ||
|  | 
 | ||
|  |     // LFB Clock
 | ||
|  |     CMU->LFBCLKSEL = CMU_LFBCLKSEL_LFB_LFRCO; | ||
|  | 
 | ||
|  |     // LFC Clock
 | ||
|  |     CMU->LFCCLKSEL = CMU_LFCCLKSEL_LFC_LFRCO; | ||
|  | 
 | ||
|  |     // LFE Clock
 | ||
|  |     CMU->LFECLKSEL = CMU_LFECLKSEL_LFE_ULFRCO; | ||
|  | } | ||
|  | 
 | ||
|  | void systick_init(void) | ||
|  | { | ||
|  |     SysTick->LOAD = (72000000 / 1000) - 1; | ||
|  |     SysTick->VAL = 0; | ||
|  |     SysTick->CTRL = SysTick_CTRL_TICKINT_Msk | SysTick_CTRL_ENABLE_Msk | SysTick_CTRL_CLKSOURCE_Msk; | ||
|  | 
 | ||
|  |     SCB->SHP[11] = 7 << (8 - __NVIC_PRIO_BITS); // Set priority 3,1 (min)
 | ||
|  | } | ||
|  | 
 | ||
|  | void gpio_init(void) | ||
|  | { | ||
|  |     CMU->HFBUSCLKEN0 |= CMU_HFBUSCLKEN0_GPIO; | ||
|  | 
 | ||
|  |     // NC - Not Connected (not available in mcu package)
 | ||
|  |     // NR - Not routed (no routing to pin on pcb, floating)
 | ||
|  |     // NU - Not used (not currently in use)
 | ||
|  | 
 | ||
|  |     // Port A
 | ||
|  |     GPIO->P[0].CTRL   = GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG | (6 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) | ||
|  |                       | GPIO_P_CTRL_DRIVESTRENGTH_STRONG | (6 << _GPIO_P_CTRL_SLEWRATE_SHIFT); | ||
|  |     GPIO->P[0].MODEL  = GPIO_P_MODEL_MODE0_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE1_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE2_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE3_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE4_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE5_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE6_DISABLED          // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE7_DISABLED;         // NC
 | ||
|  |     GPIO->P[0].MODEH  = GPIO_P_MODEH_MODE8_DISABLED          // GPIO - MIC_ENABLE
 | ||
|  |                       | GPIO_P_MODEH_MODE9_DISABLED          // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE10_DISABLED         // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE11_DISABLED         // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE12_WIREDAND         // LED0R
 | ||
|  |                       | GPIO_P_MODEH_MODE13_WIREDAND         // LED0B
 | ||
|  |                       | GPIO_P_MODEH_MODE14_WIREDAND         // LED0G
 | ||
|  |                       | GPIO_P_MODEH_MODE15_DISABLED;        // NU
 | ||
|  |     GPIO->P[0].DOUT   = 0x7000; // Leds off By default
 | ||
|  |     GPIO->P[0].OVTDIS = 0; | ||
|  | 
 | ||
|  |     // Port B
 | ||
|  |     GPIO->P[1].CTRL   = GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG | (6 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) | ||
|  |                       | GPIO_P_CTRL_DRIVESTRENGTH_STRONG | (6 << _GPIO_P_CTRL_SLEWRATE_SHIFT); | ||
|  |     GPIO->P[1].MODEL  = GPIO_P_MODEL_MODE0_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE1_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE2_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE3_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE4_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE5_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE6_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE7_DISABLED;                // MAIN_LFXTAL_P
 | ||
|  |     GPIO->P[1].MODEH  = GPIO_P_MODEH_MODE8_DISABLED                 // MAIN_LFXTAL_N
 | ||
|  |                       | GPIO_P_MODEH_MODE9_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE10_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE11_DISABLED                // PDM_DAT0 - MIC_DATA
 | ||
|  |                       | GPIO_P_MODEH_MODE12_DISABLED                // PDM_CLK - MIC_CLOCK
 | ||
|  |                       | GPIO_P_MODEH_MODE13_DISABLED                // MAIN_HFXTAL_P
 | ||
|  |                       | GPIO_P_MODEH_MODE14_DISABLED                // MAIN_HFXTAL_N
 | ||
|  |                       | GPIO_P_MODEH_MODE15_DISABLED;               // NC
 | ||
|  |     GPIO->P[1].DOUT   = 0; | ||
|  |     GPIO->P[1].OVTDIS = 0; | ||
|  | 
 | ||
|  |     // Port C
 | ||
|  |     GPIO->P[2].CTRL   = GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG | (6 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) | ||
|  |                       | GPIO_P_CTRL_DRIVESTRENGTH_STRONG | (7 << _GPIO_P_CTRL_SLEWRATE_SHIFT); | ||
|  |     GPIO->P[2].MODEL  = GPIO_P_MODEL_MODE0_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE1_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE2_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE3_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE4_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE5_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE6_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE7_DISABLED;                // NC
 | ||
|  |     GPIO->P[2].MODEH  = GPIO_P_MODEH_MODE8_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE9_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE10_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE11_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE12_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE13_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE14_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE15_DISABLED;               // NC
 | ||
|  |     GPIO->P[2].DOUT   = 0; | ||
|  |     GPIO->P[2].OVTDIS = 0; | ||
|  | 
 | ||
|  |     // Port D
 | ||
|  |     GPIO->P[3].CTRL   = GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG | (6 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) | ||
|  |                       | GPIO_P_CTRL_DRIVESTRENGTH_STRONG | (6 << _GPIO_P_CTRL_SLEWRATE_SHIFT); | ||
|  |     GPIO->P[3].MODEL  = GPIO_P_MODEL_MODE0_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE1_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE2_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE3_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE4_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE5_INPUT                    // GPIO - BTN0
 | ||
|  |                       | GPIO_P_MODEL_MODE6_WIREDAND                 // LED1R
 | ||
|  |                       | GPIO_P_MODEL_MODE7_DISABLED;                // NU
 | ||
|  |     GPIO->P[3].MODEH  = GPIO_P_MODEH_MODE8_INPUT                    // GPIO - BTN1
 | ||
|  |                       | GPIO_P_MODEH_MODE9_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE10_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE11_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE12_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE13_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE14_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE15_DISABLED;               // NC
 | ||
|  |     GPIO->P[3].DOUT   = 0; | ||
|  |     GPIO->P[3].OVTDIS = 0; | ||
|  | 
 | ||
|  |     // Port E
 | ||
|  |     GPIO->P[4].CTRL   = GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG | (6 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) | ||
|  |                       | GPIO_P_CTRL_DRIVESTRENGTH_STRONG | (6 << _GPIO_P_CTRL_SLEWRATE_SHIFT); | ||
|  |     GPIO->P[4].MODEL  = GPIO_P_MODEL_MODE0_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE1_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE2_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE3_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE4_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE5_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE6_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE7_DISABLED;                // NU
 | ||
|  |     GPIO->P[4].MODEH  = GPIO_P_MODEH_MODE8_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEH_MODE9_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEH_MODE10_DISABLED                // NU
 | ||
|  |                       | GPIO_P_MODEH_MODE11_DISABLED                // NU
 | ||
|  |                       | GPIO_P_MODEH_MODE12_WIREDAND                // LED1B
 | ||
|  |                       | GPIO_P_MODEH_MODE13_DISABLED                // NU
 | ||
|  |                       | GPIO_P_MODEH_MODE14_DISABLED                // NU
 | ||
|  |                       | GPIO_P_MODEH_MODE15_DISABLED;               // NU
 | ||
|  |     GPIO->P[4].DOUT   = 0; | ||
|  |     GPIO->P[4].OVTDIS = 0; | ||
|  | 
 | ||
|  |     // Port F
 | ||
|  |     GPIO->P[5].CTRL   = GPIO_P_CTRL_DRIVESTRENGTHALT_STRONG | (6 << _GPIO_P_CTRL_SLEWRATEALT_SHIFT) | ||
|  |                       | GPIO_P_CTRL_DRIVESTRENGTH_STRONG | (6 << _GPIO_P_CTRL_SLEWRATE_SHIFT); | ||
|  |     GPIO->P[5].MODEL  = GPIO_P_MODEL_MODE0_PUSHPULL                 // SWCLK
 | ||
|  |                       | GPIO_P_MODEL_MODE1_PUSHPULL                 // SWDIO
 | ||
|  |                       | GPIO_P_MODEL_MODE2_PUSHPULL                 // SWO
 | ||
|  |                       | GPIO_P_MODEL_MODE3_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE4_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE5_DISABLED                 // NU
 | ||
|  |                       | GPIO_P_MODEL_MODE6_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEL_MODE7_DISABLED;                // NC
 | ||
|  |     GPIO->P[5].MODEH  = GPIO_P_MODEH_MODE8_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE9_DISABLED                 // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE10_DISABLED                // USB N
 | ||
|  |                       | GPIO_P_MODEH_MODE11_DISABLED                // USB P
 | ||
|  |                       | GPIO_P_MODEH_MODE12_WIREDAND                // LED1G
 | ||
|  |                       | GPIO_P_MODEH_MODE13_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE14_DISABLED                // NC
 | ||
|  |                       | GPIO_P_MODEH_MODE15_DISABLED;               // NC
 | ||
|  |     GPIO->P[5].DOUT   = 0; | ||
|  | 
 | ||
|  |     GPIO->P[5].OVTDIS = 0; | ||
|  | 
 | ||
|  |     // Debugger Route
 | ||
|  |     GPIO->ROUTEPEN &= ~(GPIO_ROUTEPEN_TDIPEN | GPIO_ROUTEPEN_TDOPEN);   // Disable JTAG
 | ||
|  |     GPIO->ROUTEPEN |= GPIO_ROUTEPEN_SWVPEN;                             // Enable SWO
 | ||
|  |     GPIO->ROUTELOC0 = GPIO_ROUTELOC0_SWVLOC_LOC0;                       // SWO on PF2
 | ||
|  | 
 | ||
|  |     // External interrupts
 | ||
|  |     GPIO->EXTIPSELL = GPIO_EXTIPSELL_EXTIPSEL0_PORTE            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL1_PORTB            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL2_PORTB            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL3_PORTB            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL4_PORTA            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL5_PORTA            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL6_PORTC            // NU
 | ||
|  |                     | GPIO_EXTIPSELL_EXTIPSEL7_PORTC;           // NU
 | ||
|  |     GPIO->EXTIPSELH = GPIO_EXTIPSELH_EXTIPSEL8_PORTA            // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL9_PORTE            // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL10_PORTF           // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL11_PORTA           // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL12_PORTA           // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL13_PORTE           // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL14_PORTF           // NU
 | ||
|  |                     | GPIO_EXTIPSELH_EXTIPSEL15_PORTA;          // NU
 | ||
|  | 
 | ||
|  |     GPIO->EXTIPINSELL = GPIO_EXTIPINSELL_EXTIPINSEL0_PIN3       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL1_PIN1       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL2_PIN2       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL3_PIN3       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL4_PIN6       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL5_PIN7       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL6_PIN4       // NU
 | ||
|  |                       | GPIO_EXTIPINSELL_EXTIPINSEL7_PIN7;      // NU
 | ||
|  |     GPIO->EXTIPINSELH = GPIO_EXTIPINSELH_EXTIPINSEL8_PIN8       // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL9_PIN9       // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL10_PIN11     // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL11_PIN8      // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL12_PIN13     // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL13_PIN15     // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL14_PIN12     // NU
 | ||
|  |                       | GPIO_EXTIPINSELH_EXTIPINSEL15_PIN12;    // NU
 | ||
|  | 
 | ||
|  | } | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* Board Init                                                         */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | void board_init(void) | ||
|  | { | ||
|  | 
 | ||
|  |   emu_dcdc_init(1800.f, 50.f, 100.f, 0.f); // Init DC-DC converter (1.8 V, 50 mA active, 100 uA sleep, 0 mA reverse limit)
 | ||
|  |   emu_init(0); | ||
|  |   emu_reg_init(3300.f); // set output regulator to 3.3V
 | ||
|  | 
 | ||
|  |   cmu_hfxo_startup_calib(0x200, 0x145); // Config HFXO Startup for 1280 uA, 36 pF (18 pF + 2 pF CLOAD)
 | ||
|  |   cmu_hfxo_steady_calib(0x009, 0x145); // Config HFXO Steady for 12 uA, 36 pF (18 pF + 2 pF CLOAD)
 | ||
|  | 
 | ||
|  |   cmu_init(); // Init Clock Management Unit
 | ||
|  | 
 | ||
|  |   cmu_ushfrco_calib(1, DEVINFO->USHFRCOCAL13); // Enable and calibrate USHFRCO for 48 MHz
 | ||
|  |   cmu_auxhfrco_calib(1, DEVINFO->AUXHFRCOCAL11); // Enable and calibrate AUXHFRCO for 32 MHz
 | ||
|  | 
 | ||
|  |   CMU->USBCRCTRL = CMU_USBCRCTRL_USBCREN; // enable USB clock recovery
 | ||
|  |   CMU->USBCTRL = CMU_USBCTRL_USBCLKSEL_USHFRCO | CMU_USBCTRL_USBCLKEN;  // select USHFRCO as USB Phy clock source and enable it
 | ||
|  | 
 | ||
|  |   CMU->HFBUSCLKEN0 |= CMU_HFBUSCLKEN0_USB;  // enable USB peripheral clock
 | ||
|  | 
 | ||
|  |   systick_init(); // Init system tick
 | ||
|  | 
 | ||
|  |   gpio_init(); // Init IOs
 | ||
|  | 
 | ||
|  | } | ||
|  | 
 | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | /* Board porting API                                                  */ | ||
|  | /*--------------------------------------------------------------------*/ | ||
|  | 
 | ||
|  | void board_led_write(bool state) | ||
|  | { | ||
|  |   // Combine red and blue for pink Because it looks good :)
 | ||
|  |   GPIO->P[LED_PORT].DOUT = (GPIO->P[LED_PORT].DOUT & ~((1 << LED_PIN_R) | (1 << LED_PIN_B))) | (state << LED_PIN_R) | (state << LED_PIN_B); | ||
|  | } | ||
|  | 
 | ||
|  | uint32_t board_button_read(void) | ||
|  | { | ||
|  |   return !!(GPIO->P[BUTTON_PORT].DIN & (1 << BUTTON_PIN)); | ||
|  | } | ||
|  | 
 | ||
|  | int board_uart_read(uint8_t* buf, int len) | ||
|  | { | ||
|  |   (void) buf; (void) len; | ||
|  |   return 0; | ||
|  | } | ||
|  | 
 | ||
|  | int board_uart_write(void const * buf, int len) | ||
|  | { | ||
|  |   (void) buf; (void) len; | ||
|  |   return 0; | ||
|  | } | ||
|  | 
 | ||
|  | #if CFG_TUSB_OS  == OPT_OS_NONE
 | ||
|  | volatile uint32_t system_ticks = 0; | ||
|  | void SysTick_Handler(void) | ||
|  | { | ||
|  |   system_ticks++; | ||
|  | } | ||
|  | 
 | ||
|  | uint32_t board_millis(void) | ||
|  | { | ||
|  |   return system_ticks; | ||
|  | } | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #ifdef  USE_FULL_ASSERT
 | ||
|  | /**
 | ||
|  |   * @brief  Reports the name of the source file and the source line number | ||
|  |   *         where the assert_param error has occurred. | ||
|  |   * @param  file: pointer to the source file name | ||
|  |   * @param  line: assert_param error line source number | ||
|  |   * @retval None | ||
|  |   */ | ||
|  | void assert_failed(char *file, uint32_t line) | ||
|  | {  | ||
|  |   /* USER CODE BEGIN 6 */ | ||
|  |   /* User can add his own implementation to report the file name and line number,
 | ||
|  |      tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ | ||
|  |   /* USER CODE END 6 */ | ||
|  | } | ||
|  | #endif /* USE_FULL_ASSERT */
 |