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标题: 有能在C里面对flash操作的源程序么? [打印本页]

作者: forthlab 时间: 2005-4-13 17:44 标题: 有能在C里面对flash操作的源程序么?

为何PE里面不提供flash的bean?flash的调试好像挺麻烦,如果有现成的,我就不费时间了.
现在用GT16.
现谢谢了[em11]

作者: strongchen 时间: 2005-4-14 17:17

你可以将对FLASH操作的汇编程序直接插入C程序中，只要加个 asm { } 的标志就行了。

作者: sampro 时间: 2005-4-15 11:58

我贴一个QY4的： //eeprom.c #include #include "utils.h" #include "hidef.h" #include "globdefs.h" #define FLASH_CONTROL_LOCATION 0x88 #define CPU_BUS_CLOCK 5 #define CPU_SPEED_CONST (4*CPU_BUS_CLOCK) #define ERASE_ROUTINE_ADDRESS 0x2806 #define PROGR_ROUTINE_ADDRESS 0x2809 #define DELAY_CYCLES_OK 2000 #define INIT_CMD 0xFF void delay(word cycles); static struct { byte CTRLBYT; byte CPUSPD; word LADDR; byte DATA; } flash_control @FLASH_CONTROL_LOCATION; bool WriteByteInFlash(word address, byte data) { byte low_adr = SB(address, 1); byte high_adr = SB(address, 0); DisableInterrupts; flash_control.CTRLBYT = 0; flash_control.CPUSPD = CPU_SPEED_CONST; flash_control.LADDR = address; flash_control.DATA = data; asm { lda low_adr psha lda high_adr psha pulh pulx jsr PROGR_ROUTINE_ADDRESS } EnableInterrupts; return (*((byte*)(address)) == data); } bool EraseSegmentInFlash(word address) { byte low_adr = SB(address, 1); byte high_adr = SB(address, 0); DisableInterrupts; flash_control.CTRLBYT = 0; flash_control.CPUSPD = CPU_SPEED_CONST; flash_control.LADDR = address; flash_control.DATA = 0; asm { lda low_adr psha lda high_adr psha pulh pulx jsr ERASE_ROUTINE_ADDRESS } EnableInterrupts; return 1; } void Node_Process_Config_Data(word data) { byte cmd, res = 0; static byte prev_cmd = INIT_CMD; if ( #if (USE_BUTTON) BUTTON_BIT && #endif (FLASH_CONFIG_CHECK == (SB(data, HIGH_BYTE) & FLASH_CONFIG_CHECK_MASK))) { cmd = (SB(data, HIGH_BYTE) & FLASH_ADDRESS_MASK); switch (cmd) { case FLASH_RESET_CMD: if (prev_cmd != INIT_CMD) { prev_cmd = INIT_CMD; res = 1; } break; case FLASH_PAGE_ERASE_CMD: if (prev_cmd != cmd) res = EraseSegmentInFlash(FLASH_CONFIG_START_ADDRESS | cmd); prev_cmd = cmd; break; default: if (prev_cmd != cmd) res = WriteByteInFlash(FLASH_CONFIG_START_ADDRESS | cmd, SB(data, LOW_BYTE)); prev_cmd = cmd; break; } if (res) { ERROR_LED_BIT = 1; delay(DELAY_CYCLES_OK); ERROR_LED_BIT = 0; } } } //eeprom.h bool WriteByteInFlash(word address, byte data); bool EraseSegmentInFlash(word address); void Node_Process_Config_Data(word data);

作者: sampro 时间: 2005-4-15 12:12

//globdefs.h
#define USE_BUTTON 0

#define CPU8PIN  1
#define CPU16PIN 2

#define CPU CPU16PIN

#if (CPU == CPU8PIN)

#define ERROR_LED_BIT    PTA_PTA4
#define ERROR_LED_PORT    PTA
#define ERROR_LED_DIR    DDRA_DDRA4

#define DATA_IN_BIT       PTA_PTA3
#define DATA_IN_PORT       PTA
#define DATA_IN_DIR    DDRA_DDRA3

#define DATA_OUT_BIT    PTA_PTA5
#define DATA_OUT_PORT    PTA
#define DATA_OUT_DIR    DDRA_DDRA5

#define BUTTON_BIT       PTA_PTA0
#define BUTTON_DIR       DDRA_DDRA0
#define BUTTON_PULLUP    PTAPUE_PTAPUE0

#elif (CPU == CPU16PIN)

#define ERROR_LED_BIT    PTB_PTB5
#define ERROR_LED_PORT    PTB
#define ERROR_LED_DIR    DDRB_DDRB5

#define DATA_IN_BIT    PTB_PTB7
#define DATA_IN_PORT    PTB
#define DATA_IN_DIR    DDRB_DDRB7

#define DATA_OUT_BIT    PTB_PTB6
#define DATA_OUT_PORT    PTB
#define DATA_OUT_DIR    DDRB_DDRB6

#define BUTTON_BIT       PTB_PTB4
#define BUTTON_DIR       DDRB_DDRB4
#define BUTTON_PULLUP    PTBPUE_PTBPUE4

#else

#error "CPU is undefined"

#endif

#define DIR_IN       0
#define DIR_OUT    1

#define DEBUG    1

#define FLASH_CONFIG_START_ADDRESS 0xEE00
#define FLASH_CONFIG_CHECK_MASK       0xF0
#define FLASH_ADDRESS_MASK 0x0F
#define FLASH_PAGE_ERASE_CMD       0x0E
#define FLASH_RESET_CMD 0x0F
#define FLASH_CONFIG_CHECK 0xA0

#define FRAME_DATA_PPP_IN_STOP (FLASH_CONFIG_START_ADDRESS+0)
#define FRAME_DATA_PPP_OUT_START (FLASH_CONFIG_START_ADDRESS+1)
#define FRAME_DATA_PPP_OUT_STOP (FLASH_CONFIG_START_ADDRESS+2)
#define FRAME_DATA_BROADCAST_OUT_START (FLASH_CONFIG_START_ADDRESS+3)
#define FRAME_DATA_BROADCAST_OUT_STOP (FLASH_CONFIG_START_ADDRESS+4)
#define BROADCAST_DATA_OUT_MASK (FLASH_CONFIG_START_ADDRESS+5)
#define BROADCAST_DATA_IN_MASK (FLASH_CONFIG_START_ADDRESS+6)

#define HIGH_BYTE 0
#define LOW_BYTE 1

#define CHECK_BUTTON() PTA_PTA3

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