STM32-based MDK program startup

;//HeapSize(inBytes)

;//

Heap_SizeEQU0x00000020;//Define heap space size

AREAHEAP,NOINIT,READWRITE,ALIGN=3;//Define a data segment, 8-byte alignment

__heap_base

Heap_MemSPACEHeap_Size;//Reserve Heap_Size heap space

__heap_limit;//Label, representing the address at the end of the heap, useful later

PRESERVE8;//Instruct the compiler to 8-byte alignment

THUMB;//Instruct the compiler to use the THUMB instruction

;VectorTableMappedtoAddress0atReset

AREARESET, DATA, READONLY;//Define the read-only data segment, which is actually placed in the CODE area, at address 0

EXTERNNMIExceptIon

EXTERNHardFaultExcepTIon

EXTERnmemManageExcepTIon

EXTERNBusFaultExcepTIon

EXTERNUsageFaultException

EXTERNSVCHandler

EXTERNDebugMonitor

EXTERNPendSVC

EXTERNSysTickHandler;//Declare these symbols to be defined externally, same as C

;//Implement these functions in ××it.c, and the interrupt can be called automatically

EXPORT__Vectors

__VectorsDCD__initial_sp;TopofStack//Cotex-M requires this to be the top address of the stack

DCDReset_Handler;ResetHandler

DCDNMIException; NMIHandler

DCDHardFaultException; HardFaultHandler

DCDMemManageException; MPUFaultHandler

DCDBusFaultException; BusFaultHandler

DCDUsageFaultException;UsageFaultHandler

DCD0;Reserved

DCD0;Reserved

DCD0;Reserved

DCD0;Reserved

DCDSVCHandler;SVCallHandler

DCDDebugMonitor;DebugMonitorHandler

DCD 0 ; Reserved

Car Mp3 Player

Car MP3 player 1 din 3 inch car radio BT RC app conrol AUX 2USB FM car audio

We can do 12V and 24V with OEM and ODM service

Fixed/Detached Panel

7388IC

Support MP3/WMA audio format

18FM Radio stations

USB/SD/MMC/AUX-in/RCA audio output

EQ: POP/ROCK/CLASSIC/Jazz

Clock function/Remote function

1Din Fixed panel, FM electronic tuning radio
With USB mobile hard drive socket, SD card slot, compatible with MP3/WMA music format
Dual USB socket, one for charging, the other for reading USB
Electronic volume control, LCD / LED display with external auxiliary audio interface
Audio output, pre-stored 18 radio stations, built-in electronic clock, pause-repeat-random radio radio search radio station/automatic storage radio function, loudness and mute function
Electronic digital song function, USB mobile phone charging, memory playback function
Optional IC:7388IC/7377IC/1028IC/5301B/6633
Power: 12V or 24V

Optional features:
AM electronic tuning radio (plus 12 radio stations)
Sound adjustment: equal sound / bass / treble / balance
Audio playback effect: pop-rock-classic-jazz
With folder function, ID3 function, with Bluetooth
Maximum power output: 4*15W/4*25W/4*45W with remote

Customer Customization

Package:
General Packaging: 1PCS/BOX, 10PCS/CTN, CTN Size:40.3*22*35.2CM

Mp3 Car Stereo,Car Mp3 Player,Car Music Player,Car Radio Cd Player

Jiangmen soundrace electronics and technology co.,ltd. , https://www.soundracegroup.com