Hi, LPC4357 gurus!
I am working on a new project using your lovely LPC4357 and I am checking if there is a way to increase the LCD refresh rate of my -rather challenging- 800 x 480 x 24bit LCD display.
From the LPC4357 user manual 29.7.2 "Dual DMA FIFOs and associated control logic", first paragraph:
The pixel data accessed from memory is buffered by two DMA FIFOs that can be
independently controlled to cover single and dual-panel LCD types. Each FIFO is 16
words deep by 64 bits wide and can be cascaded to form an effective 32-Dword deep
FIFO in single panel mode.
I am wondering if, when in single panel mode:
- the LCD FIFOs are automagically cascaded -no further settings needed
- or if there is some bit -into some control register- to set to force the LCD FIFOs cascading, because it isn't enabled when setting the single panel mode
I am really hoping the cascading isn't automatic when in single panel mode so there would be a way to force the cascading and get a double length FIFO, which in turn could be very useful to increase the LCD refresh rate!
Many thanks for your help!