User Manual
GD32450I-EVAL
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JP17 must be fitted to SDRAM, JP5 must be fitted to USART. Download the program
<15_EXMC_SDRAM_DeepSleep> to the EVAL board. This demo shows how to use
SDRAM in the deepsleep mode. Firstly, MCU works in the normal mode, SDRAM
auto-refresh cycles are performed by MCU, we write the specified data to the SDRAM.
Secondly, we make the MCU to deepsleep mode, at the time, SDRAM auto-refresh
cycles are performed by itself and LED2 will light on. Thirdly, press the user key to wake
up MCU, compare the data which read from SDRAM with the write data, if the test pass,
LED1 will be turned on. Otherwise, turn on the LED3. Information via a HyperTerminal
output as following:
5.16
EXMC_NandFlash
5.16.1
DEMO Purpose
This demo includes the following functions of GD32 MCU:
Learn to use EXMC control the NAND flash
5.16.2
DEMO Running Result
GD32450I-EVAL board has EXMC module to control NAND flash. Before running the
demo, JP5 must be fitted to USART. Download the program <16_EXMC_NandFlash> to
the EVAL board. This demo shows the write and read operation process of NAND flash
memory by EXMC module. If the test pass, LED1 will be turned on. Otherwise, turn on
the LED3. Information via a HyperTerminal output as following:
