sdk: copy Startup
This commit is contained in:
Richard Goulter
parent
3c4c7b5640
commit
c4be43ec91
185
sdk/Startup/startup_CH592.S
Normal file
185
sdk/Startup/startup_CH592.S
Normal file
@ -0,0 +1,185 @@
|
||||
/********************************** (C) COPYRIGHT *******************************
|
||||
* File Name : startup_CH59x.s
|
||||
* Author : WCH
|
||||
* Version : V1.0.0
|
||||
* Date : 2021/02/25
|
||||
* Description :
|
||||
*********************************************************************************
|
||||
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
|
||||
* Attention: This software (modified or not) and binary are used for
|
||||
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
|
||||
*******************************************************************************/
|
||||
|
||||
.section .init,"ax",@progbits
|
||||
.global _start
|
||||
.align 1
|
||||
_start:
|
||||
j handle_reset
|
||||
|
||||
.section .vector,"ax",@progbits
|
||||
.align 1
|
||||
_vector_base:
|
||||
.option norvc;
|
||||
|
||||
.word 0
|
||||
.word 0
|
||||
.word NMI_Handler /* NMI Handler */
|
||||
.word HardFault_Handler /* Hard Fault Handler */
|
||||
.word 0xF5F9BDA9
|
||||
.word Ecall_M_Mode_Handler /* 5 */
|
||||
.word 0
|
||||
.word 0
|
||||
.word Ecall_U_Mode_Handler /* 8 */
|
||||
.word Break_Point_Handler /* 9 */
|
||||
.word 0
|
||||
.word 0
|
||||
.word SysTick_Handler /* SysTick Handler */
|
||||
.word 0
|
||||
.word SW_Handler /* SW Handler */
|
||||
.word 0
|
||||
/* External Interrupts */
|
||||
.word TMR0_IRQHandler /* 0: TMR0 */
|
||||
.word GPIOA_IRQHandler /* GPIOA */
|
||||
.word GPIOB_IRQHandler /* GPIOB */
|
||||
.word SPI0_IRQHandler /* SPI0 */
|
||||
.word BB_IRQHandler /* BLEB */
|
||||
.word LLE_IRQHandler /* BLEL */
|
||||
.word USB_IRQHandler /* USB */
|
||||
.word 0
|
||||
.word TMR1_IRQHandler /* TMR1 */
|
||||
.word TMR2_IRQHandler /* TMR2 */
|
||||
.word UART0_IRQHandler /* UART0 */
|
||||
.word UART1_IRQHandler /* UART1 */
|
||||
.word RTC_IRQHandler /* RTC */
|
||||
.word ADC_IRQHandler /* ADC */
|
||||
.word I2C_IRQHandler /* I2C */
|
||||
.word PWMX_IRQHandler /* PWMX */
|
||||
.word TMR3_IRQHandler /* TMR3 */
|
||||
.word UART2_IRQHandler /* UART2 */
|
||||
.word UART3_IRQHandler /* UART3 */
|
||||
.word WDOG_BAT_IRQHandler /* WDOG_BAT */
|
||||
|
||||
.option rvc;
|
||||
|
||||
.section .vector_handler, "ax", @progbits
|
||||
.weak NMI_Handler
|
||||
.weak HardFault_Handler
|
||||
.weak Ecall_M_Mode_Handler
|
||||
.weak Ecall_U_Mode_Handler
|
||||
.weak Break_Point_Handler
|
||||
.weak SysTick_Handler
|
||||
.weak SW_Handler
|
||||
.weak TMR0_IRQHandler
|
||||
.weak GPIOA_IRQHandler
|
||||
.weak GPIOB_IRQHandler
|
||||
.weak SPI0_IRQHandler
|
||||
.weak BB_IRQHandler
|
||||
.weak LLE_IRQHandler
|
||||
.weak USB_IRQHandler
|
||||
.weak TMR1_IRQHandler
|
||||
.weak TMR2_IRQHandler
|
||||
.weak UART0_IRQHandler
|
||||
.weak UART1_IRQHandler
|
||||
.weak RTC_IRQHandler
|
||||
.weak ADC_IRQHandler
|
||||
.weak I2C_IRQHandler
|
||||
.weak PWMX_IRQHandler
|
||||
.weak TMR3_IRQHandler
|
||||
.weak UART2_IRQHandler
|
||||
.weak UART3_IRQHandler
|
||||
.weak WDOG_BAT_IRQHandler
|
||||
|
||||
NMI_Handler:
|
||||
HardFault_Handler:
|
||||
Ecall_M_Mode_Handler:
|
||||
Ecall_U_Mode_Handler:
|
||||
Break_Point_Handler:
|
||||
SysTick_Handler:
|
||||
SW_Handler:
|
||||
TMR0_IRQHandler:
|
||||
GPIOA_IRQHandler:
|
||||
GPIOB_IRQHandler:
|
||||
SPI0_IRQHandler:
|
||||
BB_IRQHandler:
|
||||
LLE_IRQHandler:
|
||||
USB_IRQHandler:
|
||||
TMR1_IRQHandler:
|
||||
TMR2_IRQHandler:
|
||||
UART0_IRQHandler:
|
||||
UART1_IRQHandler:
|
||||
RTC_IRQHandler:
|
||||
ADC_IRQHandler:
|
||||
I2C_IRQHandler:
|
||||
PWMX_IRQHandler:
|
||||
TMR3_IRQHandler:
|
||||
UART2_IRQHandler:
|
||||
UART3_IRQHandler:
|
||||
WDOG_BAT_IRQHandler:
|
||||
1:
|
||||
j 1b
|
||||
|
||||
.section .handle_reset,"ax",@progbits
|
||||
.weak handle_reset
|
||||
.align 1
|
||||
handle_reset:
|
||||
.option push
|
||||
.option norelax
|
||||
la gp, __global_pointer$
|
||||
.option pop
|
||||
1:
|
||||
la sp, _eusrstack
|
||||
|
||||
/* Load highcode code section from flash to RAM */
|
||||
2:
|
||||
la a0, _highcode_lma
|
||||
la a1, _highcode_vma_start
|
||||
la a2, _highcode_vma_end
|
||||
bgeu a1, a2, 2f
|
||||
1:
|
||||
lw t0, (a0)
|
||||
sw t0, (a1)
|
||||
addi a0, a0, 4
|
||||
addi a1, a1, 4
|
||||
bltu a1, a2, 1b
|
||||
|
||||
/* Load data section from flash to RAM */
|
||||
2:
|
||||
la a0, _data_lma
|
||||
la a1, _data_vma
|
||||
la a2, _edata
|
||||
bgeu a1, a2, 2f
|
||||
1:
|
||||
lw t0, (a0)
|
||||
sw t0, (a1)
|
||||
addi a0, a0, 4
|
||||
addi a1, a1, 4
|
||||
bltu a1, a2, 1b
|
||||
2:
|
||||
/* clear bss section */
|
||||
la a0, _sbss
|
||||
la a1, _ebss
|
||||
bgeu a0, a1, 2f
|
||||
1:
|
||||
sw zero, (a0)
|
||||
addi a0, a0, 4
|
||||
bltu a0, a1, 1b
|
||||
2:
|
||||
/* 流水线控制位 & 动态预测控制位 */
|
||||
li t0, 0x1f
|
||||
csrw 0xbc0, t0
|
||||
/* 打开嵌套中断、硬件压栈功能 */
|
||||
li t0, 0x3
|
||||
csrw 0x804, t0
|
||||
|
||||
li t0, 0x88
|
||||
csrs mstatus, t0
|
||||
la t0, _vector_base
|
||||
|
||||
/* 配置向量表模式为绝对地址模式 */
|
||||
ori t0, t0, 3
|
||||
csrw mtvec, t0
|
||||
|
||||
la t0, main
|
||||
csrw mepc, t0
|
||||
|
||||
mret
|
||||
Loading…
x
Reference in New Issue
Block a user