static void ICACHE_FLASH_ATTR eeprom_erase(uint8_t devaddr, uint32_t startaddr, uint32_t length)
{
uint8_t msgff[16] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
};
uint32_t i;
uint32_t stopaddr = startaddr + length;
for (i = startaddr; i < stopaddr; i += sizeof(msgff))
{
if(!eeprom_writePage(DEVICEADDRESS, i, msgff, sizeof(msgff)))
console_printf("Failed to clean up the memory address %03x, block size %d\r\n", i, sizeof(msgff));
else
console_printf("Memory address %03x, block size %d erased.\r\n", i, sizeof(msgff));
}
}
void user_init(void)
{
int i;
uint8_t buffer[16];
loop_size = rand();
// Data to write
uint8_t msg1[] = "Test Message #1";
uint8_t msg2[] = "Test Message #2";
uint8_t msg3[] = "Hello world!";
//Init uart
uart_init(BIT_RATE_115200, BIT_RATE_115200);
sleepms(1);
console_printf("Booting...\r\n");
console_printf("-----------------------------------------------\r\n");
console_printf("AT24C512 Library Benchmark\r\n");
console_printf("-----------------------------------------------\r\n");
// i2c init
i2c_init();
// Erase memory
eeprom_erase(DEVICEADDRESS, 0, 224);
console_printf("-----------------------------------------------\r\n");
// Write some stuff to EEPROM
if(!eeprom_writePage(DEVICEADDRESS, 0x00, msg1, sizeof(msg1)))
console_printf("Failed write, address: %d, data: %s\r\n", 0x00, msg1);
else
console_printf("Message 1 stored in the memory.\r\n");
if(!eeprom_writePage(DEVICEADDRESS, 0x40, msg2, sizeof(msg2)))
console_printf("Failed write, address: %d, data: %s\r\n", 0x40, msg2);
else
console_printf("Message 2 stored in the memory.\r\n");
if(!eeprom_writePage(DEVICEADDRESS, 0x80, msg3, sizeof(msg3)))
console_printf("Failed write, address: %d, data: %s\r\n", 0x80, msg3);
else
console_printf("Message 3 stored in the memory.\r\n");
console_printf("-----------------------------------------------\r\n");
// Read the first page in EEPROM memory, a byte at a time
console_printf("EEPROM read byte, starting at 0x000:\r\n");
for (i = 0; i < sizeof(msg1)-1; i++) {
uint8_t b = eeprom_readByte(DEVICEADDRESS, i);
console_printf("0x%02x ", b);
}
console_printf("\r\n");
for (i = 0; i < sizeof(msg1)-1; i++) {
uint8_t b = eeprom_readByte(DEVICEADDRESS, i);
console_printf("%c ", isprint(b) ? b : '.');
}
console_printf("\r\n");
console_printf("-----------------------------------------------\r\n");
console_printf("EEPROM read buffer, starting at 0x000:\r\n");
os_sprintf(buffer, "%s", eeprom_readPage(DEVICEADDRESS, 0, sizeof(buffer)), sizeof(buffer));
//First print the hex bytes on this row
for (i = 0; i < sizeof(buffer)-1; i++) {
char outbuf[6];
console_printf("0x%02x ", buffer[i]);
}
console_printf("\r\n");
for (i = 0; i < sizeof(buffer)-1; i++) {
char outbuf[6];
console_printf("%c ", isprint(buffer[i]) ? buffer[i] : '.');
}
console_printf("\r\n");
console_printf("-----------------------------------------------\r\n");
// Now dump 224 bytes
console_printf("EEPROM dump:\r\n");
eeprom_dump(DEVICEADDRESS, 0, 224);
// Start write benchmark test
writeByByteTest();
// Start read benchmark test
readByByteTest();
system_os_task(user_procTask, user_procTaskPrio,user_procTaskQueue, user_procTaskQueueLen);
}
/**
* Write a single byte to specified address of EEPROM.
*
* @param address address in the EEPROM.
* @param data data to write.
* @return 0 - success, error code otherwise.
*/
unsigned char eeprom_writeByte(unsigned int address, unsigned char data)
{
return eeprom_writePage(address, &data, 1);
}
