diff options
Diffstat (limited to 'tinyusb/hw/bsp/sltb009a/sltb009a.c')
| -rwxr-xr-x | tinyusb/hw/bsp/sltb009a/sltb009a.c | 721 |
1 files changed, 721 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/sltb009a/sltb009a.c b/tinyusb/hw/bsp/sltb009a/sltb009a.c new file mode 100755 index 00000000..b929adb1 --- /dev/null +++ b/tinyusb/hw/bsp/sltb009a/sltb009a.c @@ -0,0 +1,721 @@ +/* + * 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 */ |