diff options
Diffstat (limited to 'ports/nrf/device/startup_nrf51822.c')
| -rw-r--r-- | ports/nrf/device/startup_nrf51822.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/ports/nrf/device/startup_nrf51822.c b/ports/nrf/device/startup_nrf51822.c new file mode 100644 index 000000000..2f15f0f49 --- /dev/null +++ b/ports/nrf/device/startup_nrf51822.c @@ -0,0 +1,151 @@ +/* + * This file is part of the MicroPython project, http://micropython.org/ + * + * The MIT License (MIT) + * + * Copyright (c) 2017 Glenn Ruben Bakke + * + * 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. + */ + +#include <stdint.h> + +extern uint32_t _estack; +extern uint32_t _sidata; +extern uint32_t _sdata; +extern uint32_t _edata; +extern uint32_t _sbss; +extern uint32_t _ebss; + +typedef void (*func)(void); + +extern void _start(void) __attribute__((noreturn)); +extern void SystemInit(void); + +void Default_Handler(void) { + while (1); +} + +void Reset_Handler(void) { + uint32_t * ram_on_addr = (uint32_t *)0x40000524; + uint32_t * ram_on_b_addr = (uint32_t *)0x40000554; + // RAM on in on-mode + *ram_on_addr = 3; // block 0 and 1 + *ram_on_b_addr = 3; // block 2 and 3 +#if 0 + // RAM on in off-mode + ram_on_addr = 1 << 16; + ram_on_b_addr = 1 << 17; +#endif + + uint32_t * p_src = &_sidata; + uint32_t * p_dest = &_sdata; + + while (p_dest < &_edata) { + *p_dest++ = *p_src++; + } + + uint32_t * p_bss = &_sbss; + uint32_t * p_bss_end = &_ebss; + while (p_bss < p_bss_end) { + *p_bss++ = 0ul; + } + + SystemInit(); + _start(); +} + +void NMI_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void HardFault_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SVC_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void PendSV_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SysTick_Handler (void) __attribute__ ((weak, alias("Default_Handler"))); + +void POWER_CLOCK_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void RADIO_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void UART0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SPI0_TWI0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SPI1_TWI1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void GPIOTE_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void ADC_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void TIMER0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void TIMER1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void TIMER2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void RTC0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void TEMP_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void RNG_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void ECB_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void CCM_AAR_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void WDT_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void RTC1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void QDEC_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void LPCOMP_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SWI0_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SWI1_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SWI2_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SWI3_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SWI4_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); +void SWI5_IRQHandler (void) __attribute__ ((weak, alias("Default_Handler"))); + +const func __Vectors[] __attribute__ ((section(".isr_vector"),used)) = { + (func)&_estack, + Reset_Handler, + NMI_Handler, + HardFault_Handler, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + SVC_Handler, + 0, + 0, + PendSV_Handler, + SysTick_Handler, + + /* External Interrupts */ + POWER_CLOCK_IRQHandler, + RADIO_IRQHandler, + UART0_IRQHandler, + SPI0_TWI0_IRQHandler, + SPI1_TWI1_IRQHandler, + 0, + GPIOTE_IRQHandler, + ADC_IRQHandler, + TIMER0_IRQHandler, + TIMER1_IRQHandler, + TIMER2_IRQHandler, + RTC0_IRQHandler, + TEMP_IRQHandler, + RNG_IRQHandler, + ECB_IRQHandler, + CCM_AAR_IRQHandler, + WDT_IRQHandler, + RTC1_IRQHandler, + QDEC_IRQHandler, + LPCOMP_IRQHandler, + SWI0_IRQHandler, + SWI1_IRQHandler, + SWI2_IRQHandler, + SWI3_IRQHandler, + SWI4_IRQHandler, + SWI5_IRQHandler +}; |