AFE7954: TI204C-IP parameters setting

jeongju Go

Prodigy 40 points

Part Number: AFE7954
Other Parts Discussed in Thread: TSW14J58EVM, AFE7950EVM, LMK04828, AFE7950

Tool/software:

Hi team

I have a question about TI204C-IP parameters

I use it like this:

IP_8B10B

IP_TYPE "TX"

DAC_RESOLUTION 16

NUMBER_OF_TX_LANES 8

NUMBER_OF_QUADS 2

MGT_TYPE "GTHP"

NUMBER_OF_REFCLK_BUFFERS 1

LANE_DAC_TO_GT_MAP {3'd7,3'd6,3'd5,3'd4,3'd3,3'd2,3'd1,3'd0}

TX_LANE_POLARITY 8'b00000000

TX_LANE_DATA_WIDTH 32

TX_F_VAL 4

TX_K_VAL 32

and i want use this

INPUT RATE [MSPS]	RESOLUTION	SENCODING	SERDESRATE [Gbps]	L-M-F-S-Hd 1 LINK
250	16	8/10b	10	4-8-4-1-0

Table 7-4. JESD204B/C Formats for 1 DUC per TX Chain ( AFE7954_preliminary_datasheet )

Q1. How can I set up the parameters according to the table?

Q2. If I use lane as 8, how do I mapping I,Q?

Q3. What is the effect of setting NUMBER_OF_QUADS differently?

Q4. I want the same Single DUC as Figure 7-2. How do I set this up?

Regards,

Jeongju Go

15 days ago

0 Camilo Garcia Trujillo 13 days ago

TI__Expert 3750 points

Hi Jeongju,

If all you are trying to do is setup the JESD204C IP to interface with the AFE7954 we can help you by creating a reference design for you if you already have a specific mode for the AFE7954.

If that is the case, could you send the script for your current mode?

Best,

Camilo

0 jeongju Go 8 days ago in reply to Camilo Garcia Trujillo

Prodigy 40 points

Hi Camilo

Thank for your reply!

First of all, I don't use Latte, so I'll leave my setting about AFE7954.

<JESD>
clock = 491.52MHz
SerDes = 9830.4Mbps
LMFS = 48410 // but, if i do not allocate 8 lanes, a vivado error will appear.
IP_8B10B
IP_TYPE "TX"
DAC_RESOLUTION = 16
NUMBER_OF_TX_LANES = 8
NUMBER_OF_QUADS = 2
MGT_TYPE "GTHP"
NUMBER_OF_REFCLK_BUFFERS = 1
LANE_DAC_TO_GT_MAP = {3'd7,3'd6,3'd5,3'd4,3'd3,3'd2,3'd1,3'd0}
TX_LANE_POLARITY = 8'b00000000
TX_LANE_DATA_WIDTH = 32
TX_F_VAL = 4
TX_K_VAL = 32

<DAC>
Tx interface rate config = 245.76 Msps
Tx DAC rate config = 8847.36 MHz
channel Frequency resolution(NCO) = 1kHz
Tx channel Frequency set(NCO) = single, 8071875
system channel config = 1Tx~4Tx
system band config = all single
TDD config = TDD
Tx nyquist config = second

If there is anything else I need to write, please let me know

Regards,

Jeongju Go.

0 Camilo Garcia Trujillo 8 days ago in reply to jeongju Go

TI__Expert 3750 points

Hi Jeongju,

Thank you for the parameters. Just a question, what FPGA board in specific would you like us to use as a reference? Would it be the TSW14J58EVM, ZCU102, or a different one?

Best,

Camilo

0 jeongju Go 8 days ago in reply to Camilo Garcia Trujillo

Prodigy 40 points

Hi camilo,

I use ZCU102 board.

Regards,

Jeongju Go.

0 jeongju Go 8 days ago in reply to jeongju Go

Prodigy 40 points

Hi camilo,

In development, AFE7950EVM and ZCU102 are used.
Finally, we need to run it in AFE7954 and XQZU9EG-FFRC900.

Regards,

Jeongju Go.

0 Camilo Garcia Trujillo 2 days ago in reply to jeongju Go

TI__Expert 3750 points

Hi Jeongju,

We can create the full design for AFE7950EVM and ZCU102, and we will be able to share it next week.

I will close the post for now and will reach out to you though email once the design is ready next week.

Best,

Camilo

0 jeongju Go 1 day ago in reply to Camilo Garcia Trujillo

Prodigy 40 points

Hi Camilo

Thank for your reply!

Can you share the TICS_Pro LMK04828 register output and Vitis spi api C code to set AFE7950?

Regards,

Jeongju Go.

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AFE7954: TI204C-IP parameters setting