mbed library sources: Modified to operate FRDM-KL25Z at 48MHz from internal 32kHz oscillator (nothing else changed).
Fork of mbed-src by
The only file that changed is: mbed-src-FLL48/targets/cmsis/TARGET_Freescale/TARGET_KL25Z/system_MKL25Z4.h
Diff: targets/cmsis/TARGET_NXP/TARGET_LPC23XX/TOOLCHAIN_GCC_ARM/vector_functions.s
- Revision:
- 13:0645d8841f51
- Child:
- 20:4263a77256ae
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_NXP/TARGET_LPC23XX/TOOLCHAIN_GCC_ARM/vector_functions.s Mon Aug 05 14:12:34 2013 +0300 @@ -0,0 +1,180 @@ +# 1 "vector_functions.s" +# 1 "<built-in>" +# 1 "<command line>" +# 1 "vector_functions.s" +; +; +; + +# 1 "vector_defns.h" 1 +# 6 "vector_functions.s" 2 + + + + + + + .section VECFUNCS, "ax" + .arm + + + .weak __mbed_fiq + .weak __mbed_undef + .weak __mbed_prefetch_abort + .weak __mbed_data_abort + .weak __mbed_irq + .weak __mbed_swi + .weak __mbed_dcc_irq + .weak __mbed_reset + .global __mbed_init_realmonitor + .global __mbed_init + +; +; +__mbed_fiq: + B __mbed_fiq + +; +; +__mbed_undef: + LDR PC, =0x7fffffa0 + +; +; +__mbed_prefetch_abort: + LDR PC, =0x7fffffb0 + +; +; +__mbed_data_abort: + LDR PC, =0x7fffffc0 + +; +; +; +; +; +; +; +; +; +__mbed_irq: + ; + MSR CPSR_c, #0x1F|0x80|0x40 + + ; + STMDB sp!, {r0-r3,r12,lr} + + ; + MOV r0, #0xFFFFFF00 + LDR r0, [r0] + + ; + MOV lr, pc + BX r0 + + ; + MOV r0, #0xFFFFFF00 + STR r0, [r0] ; + + ; + LDMFD sp!,{r0-r3,r12,lr} + + ; + MSR CPSR_c, #0x12|0x80|0x40 + + ; + SUBS pc, lr, #4 + +; +; +; +; +__mbed_swi: + ; + ; + STMFD sp!, {a4, r4, ip, lr} + + ; + LDR r4, =0x40000040 + + ; + ; + LDR a4, =0x00940000 + LDR PC, =0x7ffff820 + +; +; +; +; +__mbed_dcc_irq: + + ; + + ; + LDMFD sp!,{r0-r3,r12,lr} + + ; + MSR CPSR_c, #0x12|0x80|0x40 + + ; + + ; + SUB lr, lr, #4 ; + STMFD sp!, {ip,lr} ; + + ; + LDR LR, =0xfffff000 + STR LR, [LR, #0xf00] + + ; + ; + ; + ; + LDR PC, =0x7fffffe0 + +; +; +__mbed_reset: + + ; + + LDR R0, =(0x40000000 + 0x8000) + + ; + MSR CPSR_c, #0x1B|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x17|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x11|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000000 + + ; + MSR CPSR_c, #0x12|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x13|0x80|0x40 + MOV SP, R0 + SUB R0, R0, #0x00000040 + + ; + MSR CPSR_c, #0x10 + MOV SP, R0 + + ; + LDR R0, =__mbed_init_realmonitor + MOV LR, PC + BX R0 + + ; + LDR R0, =__mbed_init + BX R0