Thanks for this repository!
I wanted to revisit the idea of using the FMC peripheral to drive the display.
The way I see it:
FMC configured in SRAM mode?
Connections STM32 -> HUB75 as follows
FMC_A0-A3, 4 bit address bus to HUB75 A, B, C, D
FMC_D0-D7, 8 bit data bus to HUB75 R1, G1, B1, R2, G2, B2
FMC_NWE to an inverter (as FMC_NWE is active low, need to convert to active high), then to HUB75 CLK
Generate a PWM signal to feed into HUB75 OE/Blanking to control brightness
Which signal would be best to drive HUB75 Latch/STB? Just a GPIO?
It appears https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA is able to use the equivalent "FMC" peripheral on the ESP32 to send data to HUB75 displays
Thanks!
Thanks for this repository!
I wanted to revisit the idea of using the FMC peripheral to drive the display.
The way I see it:
FMC configured in SRAM mode?
Connections STM32 -> HUB75 as follows
FMC_A0-A3, 4 bit address bus to HUB75 A, B, C, D
FMC_D0-D7, 8 bit data bus to HUB75 R1, G1, B1, R2, G2, B2
FMC_NWE to an inverter (as FMC_NWE is active low, need to convert to active high), then to HUB75 CLK
Generate a PWM signal to feed into HUB75 OE/Blanking to control brightness
Which signal would be best to drive HUB75 Latch/STB? Just a GPIO?
It appears https://github.com/mrcodetastic/ESP32-HUB75-MatrixPanel-DMA is able to use the equivalent "FMC" peripheral on the ESP32 to send data to HUB75 displays
Thanks!