?? uart.c
字號:
//We have to check if we have an uneven byte.
//Set the polling address to a byte address
//so that we can poll the right location
polling_address = (address&0xFFFF)*2;
if(i&1) polling_address++;
}
//increment (word) address only when we have an uneven (byte) address
if(i&1) address++;
}
//If this page is complete the bit 7 of mode will be set and we programm the page
if(mode&0x80) //頁編程，并且選擇等待的方式
{
SPIWrite(msg_buffer[6]);
SPIWrite16(start_address);
SPIWrite(0x00);
//If we have no valid polling address switch to simple wait mode
if(polling_address==0)
{
mode = (mode&(~0x70)) | 0x10;
}
//Different polling methods
//Hard waiting
if((mode&0x70) == 0x10)
{
msDelay(msg_buffer[4]);
}
//Data polling
else if((mode&0x70) == 0x20)
{
do{
//If we have an uneven byte read the
//high byte
if(polling_address%2)
{
SPIWrite(msg_buffer[7]|(1<<3));
}
else
{
SPIWrite(msg_buffer[7]);
}
SPIWrite16(polling_address/2);
tmp=SPIWrite(0x00);
}while(tmp==msg_buffer[8]);
}
//RDY/BSY polling
else if((mode&0x70) == 0x40)
{
while(universalComm(0xF0,0x00,0x00,0x00)&1);
}
//If something was not correct with the given mode do
//hard waiting. Should never reach this point
else
{
msDelay(msg_buffer[4]);
}
}
}
num_bytes = 2;
msg_buffer[0] = CMD_PROGRAM_FLASH_ISP;
}
//命令CMD_READ_FLASH_ISP
else if(cmd==CMD_READ_FLASH_ISP)
{
LED_FLASH2;
block_size = ((unsigned int)msg_buffer[1])<<8;
block_size |= msg_buffer[2];
tmp = msg_buffer[3];
for(i=0;i<block_size;i++)
{
//Select Low or High-Byte
if(i&1)
{
SPIWrite(tmp|(1<<3));
}
else
{
SPIWrite(tmp);
}
SPIWrite16(address&0xFFFF);
msg_buffer[i+2] = SPIWrite(0);
//increment (word) address only when we have an uneven (byte) address
if(i&1) address++;
}
num_bytes = block_size+3;
msg_buffer[0] = CMD_READ_FLASH_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[block_size+2] = STATUS_CMD_OK;
}
//命令CMD_PROGRAM_EEPROM_ISP
else if(cmd==CMD_PROGRAM_EEPROM_ISP)
{
block_size = ((unsigned int)msg_buffer[1])<<8;
block_size |= msg_buffer[2];
mode = msg_buffer[3];
//Byte Mode
if((mode&1) == 0)
{
for(i=0;i<block_size;i++)
{
LED_FLASH2;
SPIWrite(msg_buffer[5]);
SPIWrite16(address&0xFFFF);
SPIWrite(msg_buffer[i+10]);
//Check if we can do polling
if((msg_buffer[i+10]!=msg_buffer[8])&&(msg_buffer[i+10]!=msg_buffer[9]))
{
polling_address = address&0xFFFF;
}
//If not switch the mode hard waiting
else
{
mode = (mode&(~0x0E)) | 0x02;
}
//Different polling methods
//Hard waiting
if((mode&0x0E) == 0x02)
{
msDelay(msg_buffer[4]);
}
//Data polling
else if((mode&0x0E) == 0x04)
{
do{
SPIWrite(msg_buffer[7]);
SPIWrite16(polling_address);
tmp=SPIWrite(0x00);
}while((tmp==msg_buffer[8])||(tmp==msg_buffer[9]));
}
//RDY/BSY polling
else if((mode&0x0E) == 0x08)
{
while(universalComm(0xF0,0x00,0x00,0x00)&1);
//while(spi_transfer_32(0xF0000000)&1);
}
//If something was not correct with the given mode do
//hard waiting. Should never reach this point
else
{
msDelay(msg_buffer[4]);
}
//increment address
address++;
}
}
//Page Mode
else
{
for(i=0;i<block_size;i++)
{
LED_FLASH2;
SPIWrite(msg_buffer[5]);
SPIWrite16(address&0xFFFF);
SPIWrite(msg_buffer[i+10]);
//Check if we can do polling
if((msg_buffer[i+10]!=msg_buffer[8])&&(msg_buffer[i+10]!=msg_buffer[9]))
{
polling_address = address&0xFFFF;
}
//increment (word) address only when we have an uneven (byte) address
address++;
}
//If this page is complete the bit 7 of mode will be set and we programm the page
if(mode&0x80)
{
SPIWrite(msg_buffer[6]);
SPIWrite16(start_address&0xFFFF);
SPIWrite(0);
//If we have no valid polling address switch to simple wait mode
if(polling_address==0)
{
mode = (mode&(~0x70)) | 0x10;
}
//Different polling methods
//Hard waiting
if((mode&0x70) == 0x10)
{
msDelay(msg_buffer[4]);
}
//Data polling
else if((mode&0x70) == 0x20)
{
do{
//If we have an uneven byte read the
//high byte
if(i&1)
{
SPIWrite(msg_buffer[7]|(1<<3));
}
else
{
SPIWrite(msg_buffer[7]);
}
SPIWrite16(polling_address);
tmp=SPIWrite(0x00);
}while(tmp==msg_buffer[8]);
}
//RDY/BSY polling
else if((mode&0x70) == 0x40)
{
while(universalComm(0xF0,0x00,0x00,0x00)&1);
}
//If something was not correct with the given mode do
//hard waiting. Should never reach this point
else
{
msDelay(msg_buffer[4]);
}
}
}
num_bytes = 2;
msg_buffer[0] = CMD_PROGRAM_EEPROM_ISP;
msg_buffer[1] = STATUS_CMD_OK;
}
//命令CMD_READ_EEPROM_ISP
else if(cmd==CMD_READ_EEPROM_ISP)
{
block_size = ((unsigned int)msg_buffer[1])<<8;
block_size |= msg_buffer[2];
tmp = msg_buffer[3];
for(i=0;i<block_size;i++)
{
//Select Low or High-Byte
SPIWrite(tmp);
SPIWrite16(address&0xFFFF);
msg_buffer[i+2] = SPIWrite(0);
//increment address
address++;
}
num_bytes = block_size+3;
msg_buffer[0] = CMD_READ_EEPROM_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[block_size+2] = STATUS_CMD_OK;
}
//命令CMD_PROGRAM_FUSE_ISP
else if(cmd==CMD_PROGRAM_FUSE_ISP)
{
universalComm(msg_buffer[1],msg_buffer[2],msg_buffer[3],msg_buffer[4]);
num_bytes = 3;
msg_buffer[0] = CMD_PROGRAM_FUSE_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[2] = STATUS_CMD_OK;
}
//命令CMD_READ_FUSE_ISP
else if(cmd==CMD_READ_FUSE_ISP)
{
tmp = SPIWrite(msg_buffer[2]);
if(msg_buffer[1] == 1) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[3]);
if(msg_buffer[1] == 2) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[4]);
if(msg_buffer[1] == 3) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[5]);
if(msg_buffer[1] == 4) msg_buffer[2] = tmp;
num_bytes = 4;
msg_buffer[0] = CMD_READ_FUSE_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[3] = STATUS_CMD_OK;
}
//命令CMD_PROGRAM_LOCK_ISP
else if(cmd==CMD_PROGRAM_LOCK_ISP)
{
universalComm(msg_buffer[1],msg_buffer[2],msg_buffer[3],msg_buffer[4]);
num_bytes = 3;
msg_buffer[0] = CMD_PROGRAM_LOCK_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[2] = STATUS_CMD_OK;
}
//命令CMD_READ_LOCK_ISP
else if(cmd==CMD_READ_LOCK_ISP)
{
tmp = SPIWrite(msg_buffer[2]);
if(msg_buffer[1] == 1) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[3]);
if(msg_buffer[1] == 2) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[4]);
if(msg_buffer[1] == 3) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[5]);
if(msg_buffer[1] == 4) msg_buffer[2] = tmp;
num_bytes = 4;
msg_buffer[0] = CMD_READ_LOCK_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[3] = STATUS_CMD_OK;
}
//命令CMD_READ_SIGNATURE_ISP
else if(cmd==CMD_READ_SIGNATURE_ISP)
{
tmp = SPIWrite(msg_buffer[2]);
if(msg_buffer[1] == 1) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[3]);
if(msg_buffer[1] == 2) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[4]);
if(msg_buffer[1] == 3) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[5]);
if(msg_buffer[1] == 4) msg_buffer[2] = tmp;
num_bytes = 4;
msg_buffer[0] = CMD_READ_SIGNATURE_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[3] = STATUS_CMD_OK;
}
//命令CMD_READ_OSCCAL_ISP
else if(cmd==CMD_READ_OSCCAL_ISP)
{
tmp = SPIWrite(msg_buffer[2]);
if(msg_buffer[1] == 1) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[3]);
if(msg_buffer[1] == 2) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[4]);
if(msg_buffer[1] == 3) msg_buffer[2] = tmp;
tmp = SPIWrite(msg_buffer[5]);
if(msg_buffer[1] == 4) msg_buffer[2] = tmp;
num_bytes = 4;
msg_buffer[0] = CMD_READ_OSCCAL_ISP;
msg_buffer[1] = STATUS_CMD_OK;
msg_buffer[3] = STATUS_CMD_OK;
}
else
{
num_bytes = 1;
msg_buffer[0] = STATUS_CMD_UNKNOWN;
}
//傳送緩沖區(qū)數(shù)據(jù)
if(num_bytes>0)
{
putChar(MESSAGE_START);
checkSum=MESSAGE_START;
putChar(seqNum);
checkSum^=seqNum;
tmp=(num_bytes&0xFF00)>>8;
putChar(tmp);
checkSum^=tmp;
tmp=num_bytes&0x00FF;
putChar(tmp);
checkSum^=tmp;
putChar(TOKEN);
checkSum^=TOKEN;
for(i=0;i<num_bytes;i++)
{
putChar(msg_buffer[i]);
checkSum^=msg_buffer[i];
}
putChar(checkSum);
checkSum=0x00;
}
}
*/
/**********************************************************************
functionName:void rx_pkg_process(void)
description:串口接收包處理
**********************************************************************/
void rx_pkg_process(void)
{
uint16 i;
uint08 cmd;
cmd = uart_tx_buf[0];
if(msg_end_flag)
{
msg_end_flag=0;
for(i=0;i<uart_rx_counter;i++)
{
put_char(uart_rx_buf[i]);
}
/*switch(cmd)
{
case 0:
{
break;
}
default:
{
break;
}
}*/
}
}
/**********************************************************************
functionName:void uart0_tx_isr(void)
description:串口發(fā)送中斷函數(shù)
**********************************************************************/
#pragma interrupt_handler uart0_tx_isr:14
void uart0_tx_isr(void)
{
uart_tx_counter--;
if(uart_tx_counter) //如果還沒有發(fā)送完成
{
UDR=uart_tx_buf[uart_tx_rd_ptr];
uart_tx_rd_ptr++;
if(uart_tx_rd_ptr==UART_BUF_SIZE)uart_tx_rd_ptr=0;
}
else
{
UCSRB&=~BIT(TXCIE); //發(fā)送結(jié)束中斷不使能
//UART_TX_LED;
}
}
/**********************************************************************
functionName:uint08 write_uart(uint08 uart_data)
description:寫串口數(shù)據(jù)
**********************************************************************/
uint08 put_char(uint08 uart_data)
{
if(uart_tx_counter==UART_BUF_SIZE)
{
return(UART_FALSE); //表示串口緩沖器溢出
}
uart_tx_buf[uart_tx_wr_ptr]=uart_data;
uart_tx_wr_ptr++;
if(uart_tx_wr_ptr>=UART_BUF_SIZE)uart_tx_wr_ptr=0;
uart_tx_counter++;
if(uart_tx_counter==1)
{
UDR=uart_tx_buf[uart_tx_rd_ptr];
uart_tx_rd_ptr++;
if(uart_tx_rd_ptr==UART_BUF_SIZE)uart_tx_rd_ptr=0;
UCSRB|=BIT(TXCIE); //發(fā)送結(jié)束中斷使能
}
return(UART_TURE);
}
/**********************************************************************
functionName:putChars(BYTE *sentData)
description:通過串口發(fā)送數(shù)據(jù)字符串
**********************************************************************/
uint08 put_chars(uint08 *sentData)
{
while(*sentData)
{
if(put_char(*sentData)==UART_FALSE)
return(UART_FALSE);
sentData++;
}
return(UART_TURE);
}
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