Part Number:UCD9090
Yihe
You helped me when i had trouble with initialization this device. Thank you so much. May i get one other question?
The device id is read . Flash is read. But i had difficulties in writing data. May i ask you if it correct sequence of actions?
A. clean write protect
1. start
2. send device address | write
3. send
0xe2 - command
0x05 - data size
0x04, 0x00, 0x00, 0x01, 0x04 - command data value
4. repeat start
5. send device address | write
6. send
0xe3 - command
0x04 - data size
0x00, 0x00,0x88, 0x20 - command data value
stop
B. write to flash
the same sequence as above except data size - data.
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i receive NACK when i try to send data size on step 6.
Thank you
dmitry