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#define TCP_REQ_LEN ((u16_t)*((u16_t *)TCP_REQ_PTR_LEN))
#define TCP_REQ_DATA_U8 ((u8_t)*((u8_t *)TCP_REQ_PTR_DATA))
#define TCP_REQ_DATA_U16 ((u16_t)*((u16_t *)TCP_REQ_PTR_DATA))
#define TCP_REQ_DATA_U32 ((u32_t)*((u32_t *)TCP_REQ_PTR_DATA))
#define TCP_REQ_DATA_U16A TCP_REQ_DATA_U16 //first 16bit
#define TCP_REQ_DATA_U16B ((u16_t)*((u16_t *)(TCP_REQ_PTR_DATA+2)))

c. 定義通用head file
#ifdef PLATFORM_MSP //special for MSP 16bit
typedef unsigned char u8_t;
typedef signed char s8_t;
typedef unsigned int u16_t;
typedef signed int s16_t;
typedef unsigned long u32_t;
typedef signed long s32_t;
#else //Win32 Linux Unix ---Client 32bit-platform
typedef unsigned char u8_t;
typedef signed char s8_t;
typedef unsigned short u16_t;
typedef signed short s16_t;
typedef unsigned int u32_t;
typedef signed int s32_t;
#endif

//packet id define for client/MSP
#define PKTID_GENERAL 'G0'
#define PKTID_CHANGE_MODE (PKTID_GENERAL+0 ) //change mode between (XXXXserver/ SYSburnserver/
HTTPserver)
#define PKTID_DUMP_FLASH (PKTID_GENERAL+1 ) //download ANY datas from any positon in flash-
mem Data-Zone
....
typedef struct struReqHead_XXX{
u32_t key; // key for security
u16_t order; // same as order_code (see above) = PKTID_...
u16_t len;
}struReqHead;

typedef struct struNetInfo_XXX{
u16_t MyIP[2];
u16_t MasterIP[2];
u16_t SubnetMask[2];
u16_t GatewayIP[2];
}struNetInfo;

//for protocal_support;
#define PROTOCAL_SUPPORT 0x0001
#define PROTOCOL_ICMP (PROTOCAL_SUPPORT<<0)
#define PROTOCOL_BROADCAST (PROTOCAL_SUPPORT<<1)
#define PROTOCAL_FULL_SUPPORT (PROTOCOL_ICMP|PROTOCOL_BROADCAST)

#define TCP_PORT_XXX 4112
#define TCP_PORT_MASTER 5001

(一次傳不了,見(jiàn)下)


//------------------------------------------------------------------------------------

TI-MSP430F149在TCP/IP上的擴(kuò)展(續(xù))

d. 幾個(gè)優(yōu)化:
#define SendFrame1() {CopyToFrame8900(&TxFrame1, TxFrame1Size);}
#define SendFrame2() {CopyToFrame8900(&TxFrame2, TxFrame2Size);}
#define TCPRestartTimer() {TCPTimer = 0;}
#define TCPStopTimer() {TCPFlags &= ~TCP_TIMER_RUNNING;}
將CalcChecksum()劃分成兩個(gè), 內(nèi)部代碼做簡(jiǎn)單優(yōu)化(在C-spy中看看匯編就知道了)
u16_t CalcChecksum(...)
{
最開(kāi)始
u32_t Sum = 0;
...

最后
Sum = (Sum >> 16) + (Sum & 0xffff); // add hi 16 to low 16
Sum += (Sum >> 16); // add carry
return ~Sum;
}

5. BROADCAST功能支持的擴(kuò)展

6. UDP的擴(kuò)展(很容易的,見(jiàn):http://www.faqs.org/rfcs/rfc768.html)

7. 系統(tǒng)在線升級(jí):
基本流程(直到舊系統(tǒng)擦除前,隨時(shí)可以Cancel)
a.模式切換(權(quán)限驗(yàn)證)
b.代碼dump(由于接收緩沖區(qū)小,這是最耗時(shí)間的地方,目前12K的新系統(tǒng)代碼dump所需時(shí)間大概15秒)
c.代碼驗(yàn)證
d.全部FLASH擦除(除了系統(tǒng)升級(jí)代碼區(qū)和dump區(qū)).
e.代碼解析和復(fù)制
f.reboot. #define REBOOT {WDTCTL=0x1000;} //(PUC) is generated see slau049.pdf p146

注:在d和e運(yùn)行其間如果掉電的話,就只有到現(xiàn)場(chǎng)去取下設(shè)備來(lái)JXXX/BSL編程了.

8. 其他

a. 轉(zhuǎn)換程序:將msp430.txt格式的代碼文件轉(zhuǎn)為適合在線系統(tǒng)升級(jí)的數(shù)據(jù)包(編碼前---保護(hù)版權(quán)哦)