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Yes, I did tried to read the register in SPI mode, sorry about that I didn't make it clear.
I guess Uart interface can be used sometimes if the Host's SPI interface is being used by other perpherial, but the host won't able to access the control register.
UART/SPI pin is high, actually I tried both high and low.
Is the oscillator working? What frequency? Yes it is working at 16Mhz
REG_DATA pin is low (tried both, in the datasheet it says the content of the control register can be read at RxD after setting REG_DATA to high and RxTx to high, but...
I have read the datasheet and the application note and tried all possible wiring connection. I have also tried setting the chip to read and write the control register but the chip did not make any response at all. Referring to the application note page 14, there's a resistor R20 at the output of...
Hi all
I am using st7540 with its default setting and connecting it to a microcontroller. I send data on TXD line of st7540 at 2400 baud rate but i am unable to detect carrier frequency at TX_out line,
I have connected UART/SPI to 1 and RxTx to 0, already followed the datasheet to setup and...
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