Dear Team,
We are encountering an issue when working with the EV-SC594-SOM and DDR3 memory. After flashing a set of files containing coefficients, I am unable to see any values in the L3 buffer, which we are trying to copy from flash memory to L3 memory. Below are the DDR settings and SPI2 settings used for testing:
#define CFG0_REG_DDR_DLLCTLCFG 0x06f00622ul
#define CFG0_REG_DMC_MR2MR3 0x00180004ul
#define CFG0_REG_DMC_CTL_VALUE 0x00004a05ul
#define CFG0_REG_DMC_MRMR1 0x057000c0ul
#define CFG0_REG_DMC_TR0_VALUE 0x4140e646ul
#define CFG0_REG_DMC_TR1_VALUE 0x40680c30ul
#define CFG0_REG_DMC_TR2_VALUE 0x00330410ul
#define CFG0_REG_DMC_ZQCTL_0 0x00785A64ul
#define CFG0_REG_DMC_ZQCTL_1 0x00000000ul
#define CFG0_REG_DMC_ZQCTL_2 0x70000000ul
#define SPI_mode 0
#define SPI_CLK 62500000 //62.5 MHz
#define SPI_Baud_rate 1
Could you please provide the correct DDR settings and SPI settings that will allow the values from the flash memory to be successfully copied to the L3 buffer?
Thank you for your assistance.
Best regards,
Franky
Dear Nandini,
Thank you for your feedback!
We would like to confirm if the following configurations are feasible:
We have reviewed the datasheets for both the EZKIT and the Flash Memory. The relevant details are provided in the image below.
Based on the documentation, SPI2 supports a maximum of 62.5 MHz (Baud Rate = 1), while the Flash Memory supports up to 133 MHz for Fast Read operations.
Hence can you explain why Setting Baud rate as 1 is too fast for the communication with Flash memory and does it exceed the maximum Clock Operating Conditions?? Please explain how ?
Could you also please provide an example code that demonstrates setting the Baud Rate to 1 and successfully reading data from the memory?
Regards
Franky
