NRF52840 QSPI Driver LCD（LCD Driver IC GC9C01）

[Jgong]

Hi ，Nordic team

     I applied QSPI driver QSPILCD and encountered the following problems:
     question 1, use nrf_drv_qspi_write write data: header and tail will be a few more bytes.(note image)

      

     The green box is the data to be sent, how to remove the head and tail? Using nrfx_qspi_cinstr_quick_send won't solve this problem, but this is only 9 bytes.

     Question 2: QSPI hardware writes RGB565 to the screen, No callback (void qspi_lcd_handler(nrf_drv_qspi_evt_t event, void * p_context) is entered when the written color contains blue, but adding a 10K pull-down resistor to the pin of QSPI_IO1 works

[Wayne_Chang]

hi all,

Is there any solution update here?

I also encountered the same problem. The red area is the data I sent, but the blue area is not what I sent. Is this caused by the hardware design, or can I modify it on the software side?

I already read the post that provided by haakonsh but it didn't say any thing about this.




Wayne