Is it possible for nRF52832 to drive an 240x240 LCD and a Touch Panel

RE: Is it possible for nRF52832 to drive an 240x240 LCD and a Touch Panel

Bee — Wed, 22 Jun 2016 02:44:41 GMT

Thank you for your intensive answer. I will think of your advise.

RE: Is it possible for nRF52832 to drive an 240x240 LCD and a Touch Panel

RK — Wed, 22 Jun 2016 02:30:35 GMT

64MHz is the only speed for the system clock. What you can do all depends on the capabilities of the display. If it's an advanced one you send drawing commands to which has onboard RAM, that might work, if you have to memory map it and refresh it that's 240x240 x bytes per pixel, if it's 8-bit per channel RGB that's 240x240x3 = 172k which is 3x the RAM on the nrf52 and you have no hope at all.

Either way - if you are running BLE and other stuff and trying to refresh a huge display then you'll have nothing left for actual watch functions. I'd use a powerful chip to run the watch and display and use the nRF52 just for the communications stack.

RE: Is it possible for nRF52832 to drive an 240x240 LCD and a Touch Panel

Bee — Wed, 22 Jun 2016 02:01:04 GMT

Oh, yes. Thanks for answer my question. I think shuold say "Is it possible for nRF52832 to drive an SPI TFT 240x240 LCD and a TWI Capacitive Touch Panel when nRF52832 is running S132 and keep NFC function at the same time". Is 64MHz the highest speed for system clock?

RE: Is it possible for nRF52832 to drive an 240x240 LCD and a Touch Panel

RK — Tue, 21 Jun 2016 10:26:38 GMT

Of course it's possible for an nrf52 to drive a display and touch panel, much less capable chips are able to drive them. The rest of your question doesn't make any sense. What's a 'touch panel with BLE and NFC', or did you leave out a comma? Is 64MHz the highest speed for what?