int32_t main(void)
{
uint32_t i;
uint8_t * pt;
uint8_t *paddr = (uint8_t *)TEST_SECTOR1;
pt = (uint8_t *)u8TestData;
SystemCoreClockUpdate();
#ifdef DEBUG_PRINT
//Uart_Io_Init();
#endif
#ifdef DEBUG_PRINT
printf("==================================================\n");
printf("main flash Example Program Start \n");
printf("==================================================\n");
#endif
delay();
#ifdef DEBUG_PRINT
printf("==================================================\n");
printf("main flash erase \n");
printf("==================================================\n");
#endif
delay();
MFlash_SectorErase((uint16_t*)TEST_SECTOR1);
MFlash_SectorErase((uint16_t*)(TEST_SECTOR1+4));
for(i=0;i<TEST_SIZE;i++)
{
u8TestData[i] = i;
}
#ifdef DEBUG_PRINT
printf("==================================================\n");
printf("main flash write 16bit data \n");
printf("==================================================\n");
#endif
delay();
MFlash_WriteData16Bit((uint16_t*)TEST_SECTOR1, (uint16_t*)u8TestData, sizeof(u8TestData)/sizeof(uint16_t));
for(i=0;i<TEST_SIZE;i++)
{
u8TestData[i] = 0xff;
}
for(i=0;i<TEST_SIZE;i++)
{
*pt++ = *paddr++;
}
for(i=0;i<TEST_SIZE;i++)
{
if(i != u8TestData[i])
{
#ifdef DEBUG_PRINT
printf("main flash 16bit write data fail \n");
while(1);
#endif
}
}
#ifdef DEBUG_PRINT
printf("main flash 16bit write data successfully \n");
#endif
delay();
#ifdef DEBUG_PRINT
printf("==================================================\n");
printf("main flash erase \n");
printf("==================================================\n");
#endif
delay();
MFlash_SectorErase((uint16_t*)TEST_SECTOR1);
MFlash_SectorErase((uint16_t*)(TEST_SECTOR1+4));
#ifdef DEBUG_PRINT
printf("==================================================\n");
printf("main flash write 32bit data \n");
printf("==================================================\n");
#endif
for(i=0;i<TEST_SIZE;i++)
{
u8TestData[i] = TEST_SIZE - i;
}
delay();
MFlash_WriteData32Bit((uint32_t*)TEST_SECTOR1, (uint32_t*)u8TestData, sizeof(u8TestData)/sizeof(uint32_t),TRUE);
for(i=0;i<TEST_SIZE;i++)
{
u8TestData[i] = 0xff;
}
paddr = (uint8_t *)TEST_SECTOR1;
pt = (uint8_t *)u8TestData;
for(i=0;i<TEST_SIZE;i++)
{
*pt++ = *paddr++;
}
for(i=0;i<TEST_SIZE;i++)
{
if((TEST_SIZE - i) != u8TestData[i])
{
#ifdef DEBUG_PRINT
printf("main flash 32bit write data fail \n");
while(1);
#endif
}
}
#ifdef DEBUG_PRINT
printf("main flash 32bit write data successfully \n");
printf("==================================================\n");
printf("main flash Example Program End \n");
printf("==================================================\n");
#endif
while(1);
}
/*******************************************************************************
* 函数命名: Ymodem
* 输入参数: - address of the first byte
* 输出参数: - None
* —返回值: - The size of the file
* 函数功能: Receive a file using the ymodem protocol
*******************************************************************************/
int32_t Ymodem_Receive (uint8_t *buf)
{
uint8_t packet_data[128 + 5], file_size[50], *file_ptr, *buf_ptr;
int32_t i, packet_length, session_done, file_done, errors, session_begin, size = 0, packets_received = 0;
uint32_t flashdestination, ramsource;
/* Initialize flashdestination variable */
flashdestination = 0;
flashdestination = APPLICATION_ADDRESS;
//flashdestination = 0x1100;
for (session_done = 0, errors = 0, session_begin = 0; ;)
{
for (packets_received = 0, file_done = 0, buf_ptr = buf; ;)
{
switch (Receive_Packet(packet_data, &packet_length, 0x10000))//纯数据缓存在 packet_data 中 0x1000
{
case 0://正常传输 or 传输结束
errors = 0;
switch (packet_length)//数据包长度
{
case -1:/* Abort by sender */
Put_char(ACK);
return 0;
case 0:/* End of transmission */
Put_char(ACK);
file_done = 1;
// session_done = 1; //ybz 改变Ymodem协议 多个bin文件不可以连续传输。因为升级中掉电后，bin文件还存在在上位机的进程中，上电后再给一个bin文件升级时，其实是download了两个bin文件. 加上此句会造成上位机卡死。
break;
default:/* Normal packet */
if ((packet_data[PACKET_SEQNO_INDEX] & 0xff) != (packets_received & 0xff))
{
Put_char(NAK);
}
else
{
if (packets_received == 0)
{
/* Filename packet */
if ((packet_data[PACKET_HEADER] != 0) && (packet_data[4] != 0) && (packet_data[4] != 0x30))
{
/* Filename packet has valid data */
for (i = 0, file_ptr = packet_data + PACKET_HEADER; (*file_ptr != 0) && (i < FILE_NAME_LENGTH);)
{
FileName[i++] = *file_ptr++;
}
FileName[i++] = '\0';
for (i = 0, file_ptr ++; (*file_ptr != ' ') && (i < FILE_SIZE_LENGTH); )
{
file_size[i++] = *file_ptr++;
}
file_size[i++] = '\0';
Str2Int(file_size, &size);
temp = size;
/* Test the size of the image to be sent */
/* Image size is greater than Flash size */
if (size > USER_FLASH_SIZE) //USER_FLASH_SIZE + 1
{
/* End session */
Put_char(CA);
Put_char(CA);
return -1; //写入bin文件的size 大于 Flash可以写入的size
}
/* erase user application area */
__disable_irq();
// MFlash_SectorErase ((uint16_t*)0x00001000);//擦除第2扇区
MFlash_SectorErase ((uint16_t*)0x00010000); //擦除第3扇区
Put_char(ACK);
Put_char(CRC16);
__NOP();
}
/* Filename packet is empty, end session */
else
{
Put_char(ACK);
file_done = 1;
session_done = 1;
break;
}
} /* Filename packet */
else /* Data packet */
{
memcpy(buf_ptr, packet_data + PACKET_HEADER, packet_length);
ramsource = (uint32_t)buf;
/* Write received data in Flash */
// 要写的地址 数据首地址 数据长度
if (0 == Write(flashdestination, (uint32_t*)ramsource, (uint16_t)packet_length/4))
{
Put_char(ACK);
flashdestination = flashdestination + packet_length;
}
else /* An error occurred while writing to Flash memory */
{
/* End session */
Put_char(CA);
Put_char(CA);
return -2;
}
} //end if(packets_received == 0)
packets_received++;
session_begin = 1;
}//end if() /* Normal packet */
}
break; //break case 0://正常传输 or 传输结束
case 1://abort by user
Put_char(CA);
Put_char(CA);
return -3;
default: //如果会话开始后发生错误
if (session_begin > 0)
{
errors++;
}
if (errors > MAX_ERRORS) //错误累积到一定程度之后，终止会话。 （5次)
{
Put_char(CA);
Put_char(CA);
return 0;
}
flashdestination = 0; //这两句修复了，升级过程中掉电。再上电后重新发送APP_bin第一次发生错误后，再次发送APP_bin写入flash地址错误 (正确的地址应为0x0000_1100)
flashdestination = APPLICATION_ADDRESS; //重新发送C字符后， 重新初始化APP_address
//flashdestination = 0x1100;
Delay_ms(1000); //ybz
Put_char(CRC16); //如果没有接收到字符 就一直向终端发送字符C
break; //break switch
}
if (file_done != 0) //发送文件过程有错，退出文件传输
{
break; //break for (file_done = 0)
}
}
if (session_done != 0) //会话发生错误， 退出会话
{
break; //break for (session_done = 0)
}
}
return (int32_t)size;
}
