Posted on October 18, 2016 at 03:46 We are using the following micro controller from ST Micro.
MCU Series STM32F4
MCU Line STM32F407/417
MCU name STM32F407ZETx
MCU Package LQFP144
MCU Pin number 144
We are using FSMC interface to access a communication ASIC whichrequires synchronous bus.
We are using the following configuration:
NOR Flash/PSRAM/SRAM/ROM 1
Chip select: NE4
Memory type: PSRAM
Address: 16 bits
Data: 16 bits
Clock: Burst Read Write
Wait: Synchronous
NOR/PSRAM control:
Memory type PSRAM
Bank Bank 1 NOR/PSRAM 4
Write operation Enabled *
Wait signal polarity Low polarity
NOR/PSRAM timing:
Bus turn around time in HCLK clock cycles 15
CLK clock divide ratio 16
Data latency in CLK clock cycles 2
Kindly let us know how do we get started with the reading and writing of the device.
