Timeline for Programming a AT28C64B EEPROM using an STM32F429
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Apr 5, 2021 at 19:08 | history | edited | the busybee | CC BY-SA 4.0 |
Add polling algorithm; add citation on hardware protection
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| Apr 5, 2021 at 17:25 | comment | added | 08d09 | @thebusybee I tried writing to the chip with a Willem programmer and it could write without any problems so data protection doesn't seem to be turned on(the programmer's software doesn't have an option to turn it on or off). I also tried applying the disable sequence but that also did not work. Could you please explain how polling works? i have a 10ms delay for the write cycle, should increasing that just skip over polling? | |
| Apr 5, 2021 at 17:21 | comment | added | 08d09 | @Kartman The pins I use are 5V tolerant according to the datasheet so I didn't use any level translators, The EEPROM is supplied with 5V. I could use my SRAM(UM61256AK) chips with both 3.3V and 5V without issues. | |
| Apr 5, 2021 at 12:29 | comment | added | Kartman | @busybee. I agree. Sorry finger trouble on a mobile device! | |
| Apr 5, 2021 at 12:26 | comment | added | the busybee | @Kartman The question in this comment should go to the OP. ;-) Anyway, the hint on the supply voltage is valuable, but the OP did not tell us the specific device. | |
| Apr 5, 2021 at 11:05 | comment | added | Kartman | The eeprom is most likely a 5V device. The STM32 is 3V3. Do you have level translators? Many cmos SRAM will work on 3V3, 5V eeproms will probably refuse. | |
| Apr 5, 2021 at 10:36 | history | answered | the busybee | CC BY-SA 4.0 |