Hello,
Our customer has troubled command operation of AD5270. They send the commands by following order and setting.
1) 0x2400
2) 0x1000
3) 0x1C02
4) 0x0400
After sending the commands, they checked the position of the digital rheostat wiper. The position was center.
Are there any problems in the order and/or setting of the commands?
And could you please advise me, why do we need an external pull-up resistor on SDO pin if it is not use?
Best regards,
Akira
Hi Mark,
Thank you for your answer. Our customer tried it, but AD5270 was no responding. On the other hand, the customer tried to change the timing of the SPI.
The following is NG case;
And the following is OK case;
I can't find the timing specification about this area except t7 and t9. In my understanding, the NG case doesn't go against the specifications not only t7 and t9 but also others. Are there any constraints of timing about this area except Table.7 in the datasheet of AD5270?
Best regards,
Akira
Hi Mark,
Thank you for your answer. Our customer tried it, but AD5270 was no responding. On the other hand, the customer tried to change the timing of the SPI.
The following is NG case;
And the following is OK case;
I can't find the timing specification about this area except t7 and t9. In my understanding, the NG case doesn't go against the specifications not only t7 and t9 but also others. Are there any constraints of timing about this area except Table.7 in the datasheet of AD5270?
Best regards,
Akira
