sameer
commented
3 years ago HI zappos23,
Great to hear that you found my work helpful! :slightly_smiling_face:
If you're getting the Arduino logo then there are bigger problems so let's figure that out first. It can only come from the default program in the onboard flash memory. How are you trying to load the bitstream?
Unfortunately, I don't have an imx219 handy. I had borrowed one at the time but never got it to work. The problems from what I remember:
- Power budget: The v2 camera module has a higher start up power requirement than the v1 camera. Not quite sure why, but it causes problems for the MKR Vidor 4000. The board can't boot when powered by USB and the camera is attached so you have to either (1) connect it after starting the board, or (2) temporarily supplement the USB power supply with a LiPo cell via the JST connector
- Symptoms: can't use the board as a USB blaster, can't put it into flash mode (red light fading in and out)
- There is some discussion on the forum from what I recall but I don't think the folks at Arduino ever worked it out https://forum.arduino.cc/index.php?board=125.0
- Register sets: in theory these are supposed to work. I pulled them from the imx219 drivers but I have no way of checking. Ideally I'd be using some combination of oscilloscope + logic analyzer to verify that the i2c lines and mipi lanes are being driven as expected but haven't gotten around to buying one.
Here are some resources that might be helpful in getting it to work:
- IMX219 Datasheet
- imx219.c, Linux V4L2 i2c driver
As for the overall direction of mipi-ccs, I'm considering setting up something to convert the V4L2 linux drivers into the equivalent ones for an FPGA.
zappos23
Hi @sameer,
Thank you for sharing all your work. I find it very helpful and i learn a lot from it. I saw you mentioned that there is support for imx219 driver at https://github.com/hdl-util/mipi-ccs. May i know if imx219 driver is working? I tried it but it doesn't seems to show anything from the camera except arduino logo.
I swapped the ov5647 module to imx219 as below: imx219 #(.INPUT_CLK_RATE(48_000_000), .TARGET_SCL_RATE(100_000)) imx219 ( .clk_in(CLK_48MHZ), .scl(MIPI_SCL), .sda(MIPI_SDA), .mode(mode), .resolution(resolution), .format(format), .ready(ready), .power_enable(MIPI_GP[0]), .model_err(model_err), .nack_err(nack_err) );
Beside that there is some timing violations during synthesis not sure if this is a problem.
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ ; Slow 1200mV 85C Model Setup: 'mem_pll|altpll_component|auto_generated|pll1|clk[0]' ; +--------+-------------------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------+-----------------------------------------------------+--------------+------------+------------+ ; Slack ; From Node ; To Node ; Launch Clock ; Latch Clock ; Relationship ; Clock Skew ; Data Delay ; +--------+-------------------------------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------+------------------------------------------------------+-----------------------------------------------------+--------------+------------+------------+ ; -2.274 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[5] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][5] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.920 ; ; -2.270 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[7] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][6] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.916 ; ; -2.234 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[5] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][4] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.880 ; ; -2.233 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[6] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][5] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.879 ; ; -2.219 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[6] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][6] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.865 ; ; -2.175 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[3] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][2] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.821 ; ; -2.173 ; arbiter:arbiter|fifo:pixel_read_fifo|receiver[2] ; arbiter:arbiter|fifo:pixel_read_fifo|gray_code_chain:gray_code_chain_receiver|value_chain[0][1] ; hdmi_pll|altpll_component|auto_generated|pll1|clk[0] ; mem_pll|altpll_component|auto_generated|pll1|clk[0] ; 0.771 ; 0.014 ; 2.819 ;