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ֶԽʵƽ̨
ϢԴ   ʱ2013-10-17   

ҢׯТ (ѧӹϵ100084)

ժҪ˲CP4FSKƽʽARM 9͡ADF7021ΪĵֶԽʵƽ̨

OEMӦ㡢Χ豸ڵİ弶ְ֧ Windows Embedded CEϵͳֲ

͡˵ƽϵͳǶʽ֮˫ӡڡ͡ءʵƽ̨Ӳϵͳ ͡ԡ

ؼʡֶԽWindows Embedded CE;ARM;弶ְ֧CP4FSK ͼšTN929.3 ױʶ롿A

Research and Development of Experiment Platform for Digital Walkie-talkie

XIANG Tie-yaoZHUANG Yang-bin, LIN Xiao-kang (Department of Electronic Engineering, Tsinghua University, Beijing 100084, China)

AbstractA digital walkie-talkie scheme using CP4FSK modulation based on ARM 9 and ADF 7021 processors is designed. Board support package is developed, consisting of boot loader, OEM adaption layer and peripheral hardware drivers. Windows Embedded CE operating system is transplanted. Bi-serial interface and related drivers between modulation system and embedded processor are developed. At last, the hardware system of the experiment platform is completed and tested.

Key words digital walkie-talkie Windows Embedded

1 

20079£ԭϢҵߵ硾֡ ֶԽϵͳ豸ƵָҪ ʽйԽֻ[1]ǰȷ ֶԽƵΪ12.5 kHz6.25 kHz,

ֱ𡿶Ӧʱ϶TDMAFDMAָP25͡ DMR/DPMR׼[2]20082µ׽ ֶԽӦ롾չ̳Уˡ˫ 顾ҵȫ¹ӡ ϡָġ̡Ҫͨ䡢ȫ

ˮҵ͡ҵרҵԽء㡿ʹ졿򣬾 ֶԽ͡һƽ̨ϡ㡿ͨ ʾŨ񡿵ġȤ

2 CP4FSKƽ

CP4FSKһмԺơĿ ǰõGMSKơʽࡾȽϡƵסЧʡߡ šСء㡿ǺơʽQPSKȡ ϣCP4FSKơʽġϵͳеĹʷŴ

2010340319
CE ARM board support package CP4FSK modulation

c״̬˹ġֵƽ ʽdzֶԽϵͳ

CP4FSKŵIJԭͼ1ʾ
 ӳ  ͨ  FM 
 (2-4ӳ䣩  ˲   

ͼ1 CP4FSKԭ

ΪˡáխƵס͡õڡ ԣͬʱнϺõĿšܣԤ˲ʹƽ ˲ͨ˲ƵӦΪ

СSRAMСҪĴСܡ 4 000 ByteˣҪṹ1 ѵ2صڴ֮УȻ˳ ϵͳơȨ2•2ʵ ĸֹհѡϵͳļӡصڴ ֮УȻѡϵͳơȨNk.exe;Nk.exe𡾼ӡ ͡ɡϵͳ̡

4.2.11

1漰ָ ڡ봦ϵУҪʹ͡C 졾ϡдִˡС򡿡¡7

(1)Ρжϡϵͳ̡СҪҲδ жϷʱж״̬ζ NBootȫ̹رжϡ

(2)CPU롾ϵͳߵʱƵƵȡ

(3)SDRAMĴˢ¡ 롾ʽءַƬѡĽʱ뱣ݷ ڡӡ١ͻģʽȡ

(4)ֱ𡿽CPUģʽʼջ ж

(5)ʼڡҪáϢ

(6)ʼ NAND FLASH

(7)ͨѭ2ġƴ FLASHи֡ƵRAMеָء֡ת ڡء֡ʼִ

4.2.22

2ɵҪУڴ ԪijʼڡʼӲϵͳʼִ 洢ġߡصġϵͳȹճָ תNk.exeStartUpWinCEϵͳ 4.3 OEM

OEMǡϵͳں˷dzҪһֱ ӡӲDzϵͳӲŦ ʵϣNk.exe͡OEM㡾͡һЩ ̬ġ

OEMҪģ顾¡

(1) OEMڡ StartUpҪڳʼ ڴ桾Ԫʼһڴҳء ַ͡⡿ڴ桾ءַӳ䡢תϵͳںڡ

(2)弶ʼģ飬ҪڳʼLCD Cacheʼжϳʼ

(3)жϴжϳʼж
ܡжϽֹжɡжϴʱʼ

(4) I/OơCPUơģ顣

4.4Χ豸 4.4.1ʵֵĻʽ

Windows Embedded CEУ豸һ ̬ӿ⣬ṩײӲϵͳ Ŀ豸ϵӦ֮һ㡣 һ֪ĺṩʼӲ֮ͨ͡ ĹͨLoadLibrary LoadDriverӡ

4.4.2ġ̬ӡ

ʱһͷ ̷dzһҪС¡4

(1)DLLļ

(2)DLLļ򡿰ӡϵͳļȥ

(3)ѾصĿ象

(4)ϵͳӡԡ

ݡɡվܡϵͳɡ

Ŀ豸áصġͬϸܡҪ ʱӡһĻʱ͡ˡ 򡾿谭Ҫʱ Ƿdz˵ġ

ġ̬ӡءʽԣ ʡʱ

ʵ̬֡ӡأҪʹActiveDevice()ߡ ActiveDeviceEx()豸áʹ øúʱֻҪעе·ַԣ

Ҫܡ㡿ء̬ӡء⡿һġء עϢŵHKEY_LOCAL_MACHINE£Ҫ ݡǡס̬ӿ⡢Ŀ¼ˡС򡿡Ϣɡ

5ƽϵͳơ

Ƕʽ͡ƽģ֮ͨͨ ˫ӡڡʵ֣ݴSPIӡڡʵ֣ơ ָGPIOʵ֣жרŵSWD šʵ֡

S3C2440жSPIӡڡ͡GPIOԼ

жšġơͨ͡S3C2440ڲ Ĵʵֵġ

5.1 S3C2440ڲĴ

S3C24400x40000000µءַռ䣬 ROMRAMSRAMSDRAMЩ洢 c

0x48000000ϵĿռ䣬򱻷ڲĴ

2010340321
ݡԽϵͳﵽ ԤҪ

5

߲ͨʵֵġ⡿Ƶ ϵͳܺáɱ͡򡾽ࡿ ڹչҪӡֻӡӦ ɡMIC INӡڡ䱸׼ Ա׼ԴһЩܽ

ο

[1]ڣ÷.ͨLabVIEW 8.X[M].ӡҵ 磬2008.

[2]ФԨƼ.ġ⡿ʾʵ[J]. Ƽѧѧ2009(4):92-95

[3]ϲǿ.ƵŲɡϵͳ [J].Ӳԣ2009(2) 75-77.

[4]ͩ¹˳.ͨLabVIEW[M]. ӡҵ磬2008.

[5]ᨣ.DSPISAĽӡڡ о[J].ؼ2002(3)61-63.

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ף˶ʿʦҪʡҡƵļ춨 

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þþ2019ƷƵ,þþ2019߹ۿ,þþ2019һþþ2019ƷƵ,þþ2019߹ۿ,þþ2019һ þþ2019߹ۿ_þþ2019һ_þþƵ2019ҹƵ þþ2019ƷƵ_þþ2019߹ۿ_þþ2019һ 2019ĹRƬ,ܲѻɢȥ,ľþ޷ƽ-.þþ2019Ļ,þþ2019Ļһ þþƷ2019߹ۿ30_2019þþƷ߿1_2019þþø...