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how can i use eeprom on psoc-4.??
i read emulated eeprom component datasheet. there is only write function which can write the data but i cant find the function which can read the data from eeprom.
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i hope PSoC5 works with the similar API than your PSoC4 (it's highly probable)
it's used for EEPROM not an Em EEPROM, the functionalities between these 2 EEPROM are probably close.
After add this 2 points above, please find below a basic function to read EEPROM :
void refresh_values(unsigned char *tab){
int i=0;
reg8 * Pointer = (reg8*) CYDEV_EE_BASE;
EEPROM_Start();
for(i=0;i<5;i++) tab = Pointer;
EEPROM_Stop();
}
I use this code to read 5 bytes into the EEPROM. You need to add a component EEPROM on your Topdesign.
It's a simple proposal to read EEPROM without use the read API: i hope it will be useful for you.
yours,
rob1
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Thanks rob1 for your valuable Reply.
but i want to tell you something.
i think psoc-4 has not a eeprom component. There is only Emulated eeprom component.
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When reading from emeeprom it is quite the same as reading from flash, you just use a pointer / address and get the data. I frequently use a structure in flash and a copy in sram to work on. So I can check the number of eeprom writes and check for valid data.
On some BLE chips take care: the clocks may be changed during the flash write, check the "System Reference Guide".
Bob
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okay thanks bob,
can you give me basic syntax which can read the memory and transfer to the SRAM??
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okay Thanks bob,
Can you tell me one more thing.
which number of row or memory i use for flash memory like emulated eeprom example project using this code
static const uint8 CYCODE eepromArray[]=
{ 0x46, 0x69, 0x72, 0x73,0x74, 0x20, 0x72, 0x75, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00 };
uint8 array[] ={ 0x50, 0x6F, 0x77, 0x65, 0x72, 0x43, 0x79, 0x63, 0x6C, 0x65, 0x23, 0x20, 0x30, 0x00 };
/* P o w e r C y c l e # 0*/
i want 10 array for non-volatile memory.
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Didn't I comment in the example to use the upmost flash rows?
The emulated eeprom example works differently and cares for data located anywhere in flash.
Bob