示例#1
0
文件: eeprom.c 项目: 0xBADCA7/lk
/**
 * @brief	main routine for EEPROM example
 * @return	Always returns 0
 */
int main(void)
{
	uint8_t *ptr = (uint8_t *) buffer;
	uint8_t ret_code;

	/* Generic Initialization */
	SystemCoreClockUpdate();
	Board_Init();

	/* Enable SysTick Timer */
	SysTick_Config(SystemCoreClock / TICKRATE_HZ);

	/* Enable EEPROM clock and reset EEPROM controller */
	Chip_Clock_EnablePeriphClock(SYSCTL_CLOCK_EEPROM);
	Chip_SYSCTL_PeriphReset(RESET_EEPROM);

	/* Data to be read from EEPROM */
	ret_code = Chip_EEPROM_Read(EEPROM_ADDRESS, ptr, IAP_NUM_BYTES_TO_READ_WRITE);

	/* Error checking */
	if (ret_code != IAP_CMD_SUCCESS) {
		DEBUGOUT("Command failed to execute, return code is: %x\r\n", ret_code);
	}

	/* Check and display string if it exists */
	ShowString((char *) ptr);

	/* Get a string to save */
	MakeString(ptr);

	/* Data to be written to EEPROM */
	ret_code = Chip_EEPROM_Write(EEPROM_ADDRESS, ptr, IAP_NUM_BYTES_TO_READ_WRITE);

	/* Error checking */
	if (ret_code == IAP_CMD_SUCCESS) {
		DEBUGSTR("EEPROM write passed\r\n");
	}
	else {
		DEBUGOUT("EEPROM write failed, return code is: %x\r\n", ret_code);
	}

	return 0;
}
示例#2
0
文件: config.c 项目: scintilist/MSD
// Read config from EEPROM
void readConfigFromEEPROM(void){
	Chip_EEPROM_Read(0x00000000, (uint8_t *)&daq, sizeof(daq));
}
示例#3
0
/* Přeposílání jednotlivých zpráv na ethernet
 *
 * Funkce filtruje zprávy, které začínaji znakem #.
 * Každá přijatá zpráva ukončená znakem 0x0A se odesílá
 * jednotlivě se zpožděním kvůli synchronizaci přenosu.
 * Před každým odesláním packetu prečte data z paměti.
 *  */
void ethernet_transmit(){
		switch (state) {
			case WAIT_FOR_DATA: {
				while(!empty_buffer(&buf_uart)){
					if(buf_uart.buffer[buf_uart.consumer] == FIRST_CHAR){
						BUF_CONSUMER_PLUS1;
						state = WRONG_MESSAGE;
						break;
					}
					if(buf_uart.buffer[buf_uart.consumer] == LAST_CHAR){
						BUF_CONSUMER_PLUS1;
						break;
					}
					state = RIGHT_MESSAGE;
					break;
				}
				break;
			}
			case WRONG_MESSAGE: {
				while(!empty_buffer(&buf_uart)){
					if(buf_uart.buffer[buf_uart.consumer] != LAST_CHAR){
						BUF_CONSUMER_PLUS1;
					} else{
						BUF_CONSUMER_PLUS1;
						state = WAIT_FOR_DATA;
						break;
					}
				}
				break;
			}
			case RIGHT_MESSAGE: {
				while(!empty_buffer(&buf_uart)){
					if(buf_uart.buffer[buf_uart.consumer] == FIRST_CHAR){
						state = WRONG_MESSAGE;
						break;
					}
					if(buf_uart.buffer[buf_uart.consumer] != LAST_CHAR){
						buffer[message_lenght] = buf_uart.buffer[buf_uart.consumer];
						BUF_CONSUMER_PLUS1;
						message_lenght++;
					} else{
						buffer[message_lenght] = buf_uart.buffer[buf_uart.consumer];
						BUF_CONSUMER_PLUS1;
						message_lenght++;
						state = ETHERNET_TRANSMIT;
						break;
					}
				}
				break;
			}
			case ETHERNET_TRANSMIT: {

				/* Read all data from EEPROM page*/
				Chip_EEPROM_Read(LPC_EEPROM, 0, PAGE_ADDR, eeprom_read, EEPROM_RWSIZE_8BITS, EEPROM_PAGE_SIZE);

				/* Destination address */
				memcpy(destination_addr,(char*)eeprom_read + 2, sizeof(destination_addr));
				/* Source address */
				memcpy(source_addr,(char*)eeprom_read + 9, sizeof(source_addr));
				/* Source ip */
				memcpy(source_ip,(char*)eeprom_read + 16, sizeof(source_ip));
				/* Destination ip */
				memcpy(destination_ip,(char*)eeprom_read + 21, sizeof(destination_ip));

				delayMs(3);
				UDP_packet_send((char*) buffer, message_lenght,destination_addr,
						source_addr,source_ip,destination_ip);

				memset(buffer,0,message_lenght); // Vynulování přeposlaných dat v bufferu
				message_lenght = 0;
				state = WAIT_FOR_DATA;
				break;
			}

		}
}