
With the 'EE_COPY' command, the EEPROM cells are programmed with the current calibration register contents. After sending
out the command, the voltage at the IO pin has to be raised to VPROG within TVPROG. As shown in Figure 6.9.14.3-1, the programming
time at pin IO is TPROG. Without a previous 'CALIB_WRITE' command the 'EE_COPY' doesn't lead to a change of the
EEPROM content.
mcu输出的电压只有3.3v,这个升压动作是连接elmos的外部cpu的gpio实现的吗?还是elmos内部会升压?有官方推荐的原理图吗?
To verify successful programming, the 'EE_READ' command loads the EEPROM data into the calibration register and transmits
the data at the IO pin, see Figure 6.9.14.4-1. The EEPROM data is read with a nominal, low and high read voltage and presented
sequentially at the output IO indicating data integrity. Additionally, one VPROG_STATUS bit is appended to the end of the
EEPROM bits being read each time. The VPROG_STATUS contains the output of a comparator observing the programming
voltage during programming. A high level shows the programming voltage has been within limits, a low level indicates that
the programming was not correct
为什么读的时候需要以3种电压去读呢