Non-volatile memory can retain stored data when not powered, and includes flash memory, read-only memory (ROM), electrically erasable programmable ROM (EEPROM), static RAM (SRAM), erasable programmable ROM (EPROM), resistance variable memory, such as phase-change random-access memory (PCRAM), ...
static uint8_t get_txpower_from_eeprom(void) { return eeprom_read_byte(&eemem_txpower); } Example #8 0 Show file File: process_steno.c Project: bdprice/qmk_firmware void steno_init() { if (!eeconfig_is_enabled()) { eeconfig_init(); } mode = eeprom_read_byte(EECONFIG_STENO...
}unsignedcharEEPROM_read(unsignedintuiAddress){while(EECR & (1<<EEPE));/* Wait for completion of previous write */EEARH = (uiAddress>>8);/* Set up address register */EEARL = uiAddress; EECR |= (1<<EERE);/* Start eeprom read by writing EERE */returnEEDR;/* Return data from ...
PCM2704C会自动查看CK和DT引脚,如果EEPROM存在,它将从中读取数据(57字节)。 只要EEPROM已正确编程,则无需在PCM侧进行配置。 要对EEPROM进行编程,您需要一些能够执行I2C写入的设备。 PCM2704不能执行这些写入操作。 例如,MSP430是某些主机处理器。 下面是一个关于它的应用说明:www.ti.com/.../slaa208a.pdf ...
Improvements in the circuits and techniques for read, write and erase of EEprom memory (60). In the circuits for normal read, and read between write or erase for verification, the reading is made relative to set of threshold levels as provided by a corresponding set of reference cells (431...
I am trying to use the Kinetis SDK v2.3 with a TWR-K64F to read and write a 16kBit serial EEPROM ( Microchip 24LC16B ). Specifically, I am using the
An EEPROM device includes a device isolation layer disposed at a predetermined region of a semiconductor substrate to define active regions, a pair of control gates crossing the device isolation layers and an active region, a pair of selection gates interposed between the control gates to cross ...
In EE_ReadUsername(), you wrote: char c = EEPROM.read(dataAddress + i); This variable (c) is set but never used. You may want to add that character to the data character array. Also, the array has to be terminated with a NUL byte. Share Improve this answer Follow answered Jan...
6.4 Writing to the Data EEPROM Memory...At the completion of the write cycle, the WR bit iscleared in hardware and the EEPROM Interrupt Flagbit, EEIF, is set. The user may either enable thisinterrupt, or poll this bit. EEIF must be cleared bysoftware. This forum is mis-configured so ...
I'm assuming that with EEPROM the erase cycle is automatic with every write so either direction of bit flip probably has the same cost in endurance terms. The idea that changing part of the EEPROM lowers the retention of other parts hadn't really occurred to me. I also have no idea of...