Nice the Flex Cable is symmetric, also that it terminates in the connector and not soldered on both ends.
CR1220's are nicely smaller, assuming those won't ship ( I have a pack ) - any other parts that won't be included?
No gratuitous LED for Power - which actually was telling with what resulted in the 'white wire' edit during Beta. But no open space near 3V3 - or to drop pin or extra parts on a very full PCB.
@loglow I would recommend thicker traces for the power and ground rails along the tops/bottoms (and from there to the original source of those signals.)
Perhaps if they're fed by the Teensy itself, they already have limited current supply capacity, though?
...Not sure what you meant here. Were you wishing that there was a power LED, or were you happy that one wasn't added to the breakout?
...
I am very keen to help test this board. Have two T4's and I don't mind paying costs... I'm on a tight schedule to try upgrading to T4 in an active project and this board looks great. Let me know and thanks!
Hey loglow! you mind if I get in on this also?
Will there be an assembled version available with the T4?
What headers are you using for the T4 - looks like machine headers?
Only thing that seems to be a little challenging is the flexcable connectors and soldering - that should be interesting.
very very rarely did I ever have a board perfect with the first batch.
those photos are great - definitely good for assembling the board.
[COLOR="#0000FF"]Pin Name GPIO Serial I2C SPI PWM CAN Audio XBAR FlexIO Analog SD[/COLOR]
0 AD_B0_03 1.3 Serial1(6) RX [COLOR="#FF0000"]SPI1(3) CS[/COLOR]0 PWM1_X1 2_RX IO-17
1 AD_B0_02 1.2 Serial1(6) TX [COLOR="#FF0000"]SPI1(3) MISO[/COLOR] PWM1_X0 2_TX IO-16
2 EMC_04 4.4 PWM4_A2 2:TX_DATA IO-06 1:4
3 EMC_05 4.5 PWM4_B2 2:TX_SYNC IO-07 1:5
4 EMC_06 4.6 PWM2_A0 2:TX_BCLK IO-08 1:6
5 EMC_08 4.8 PWM2_A1 2:RX_DATA IO-17 1:8
6 B0_10 2.10 PWM2_A2 QT4_1 1:TX3_RX1 2:10
7 B1_01 2.17 Serial2(4) RX PWM1_B3 1:TX_DATA IO-15 2:17, 3:17
8 B1_00 2.16 Serial2(4) TX PWM1_A3 1:RX_DATA IO-14 2:16, 3:16
9 B0_11 2.11 PWM2_B2 QT4_2 1:TX2_RX2 2:11
10 B0_00 2.0 SPI(4) CS0 QT1_0 MQS_RIGHT 2:0
11 B0_02 2.2 SPI(4) MOSI QT1_2 1_TX 2:2
12 B0_01 2.1 SPI(4) MISO QT1_1 MQS_LEFT 2:1
13 B0_03 2.3 SPI(4) SCK QT2_0 1_RX 2:3
14/A0 AD_B1_02 1.18 Serial3(2) TX QT3_2 SPDIF_OUT 3:2 A1:7, A2:7
15/A1 AD_B1_03 1.19 Serial3(2) RX QT3_3 SPDIF_IN 3:3 A1:8, A2:8
16/A2 AD_B1_07 1.23 Serial4(3) RX Wire1(3) SCL SPDIF_EXTCLK 3:7 A1:12, A2:12
17/A3 AD_B1_06 1.22 Serial4(3) TX Wire1(3) SDA SPDIF_LOCK 3:6 A1:11, A2:11
18/A4 AD_B1_01 1.17 Serial3(2) CTS Wire(1) SDA QT3_1 3:1 A1:6, A2:6
19/A5 AD_B1_00 1.16 Wire(1) SCL QT3_0 3:0 A1:5, A2:5
20/A6 AD_B1_10 1.26 Serial5(8) TX 1:RX_SYNC 3:10 A1:15, A2:15
21/A7 AD_B1_11 1.27 Serial5(8) RX 1:RX_BCLK 3:11 A1:0, A2:0
22/A8 AD_B1_08 1.24 PWM4_A0 1_TX 3:8 A1:13, A2:13
23/A9 AD_B1_09 1.25 PWM4_A1 1_RX 1:MCLK 3:9 A1:14, A2:14
--- ---- ---- ------ --- --- --- --- ---- ---- ----- ------
24/A10 AD_B0_12 1.12 Serial6(1) TX Wire2(4) SCL PWM1_X2 A1:1
25/A11 AD_B0_13 1.13 Serial6(1) RX Wire2(4) SDA PWM1_X3 GPT1_CLK A1:2
26/A12 AD_B1_14 1.30 SPI1(3) MOSI 1:TX_BCLK 3:14 A2:3
27/A13 AD_B1_15 1.31 SPI1(3) SCK 1:TX_SYNC 3:15 A2:4
28 EMC_32 3.18 Serial7(7) RX PWM3_B1
29 EMC_31 4.31 Serial7(7) TX SPI2(1) CS1 PWM3_A1
30 EMC_37 3.23 GPT1_3 3_RX 3:MCLK IO-23
31 EMC_36 3.22 GPT1_2 3_TX 3:TX_DATA IO-22
32 B0_12 2.12 1:TX1_RX3 IO-10 2:12
33 EMC_07 4.7 PWM2_B0 2:MCLK IO-09 1:7
34 SD_B0_03 2.15 Serial5(8) RTS SPI2(1) MISO PWM1_B1 IO-07 DATA1
35 SD_B0_02 3.14 Serial5(8) CTS SPI2(1) MOSI PWM1_A1 IO-06 DATA0
36 SD_B0_01 3.13 Wire1(3) SDA SPI2(1) CS0 PWM1_B0 IO-05 CLK
37 SD_B0_00 3.12 Wire1(3) SCL SPI2(1) SCK PWM1_A0 IO-04 CMD
38 SD_B0_05 3.17 Serial5(8) RX SPI2(1) B_DQS PWM1_B2 IO-09 DATA3
39 SD_B0_04 3.16 Serial5(8) TX SPI2(1) B_SSO_B PWM1_A2 IO-08 DATA2
i'm wondering if your flex will fit tight in the 609-1788-1-ND connector used on the beta test setups? that connector is a pressure fit, it looks like, whereas yours has a lock tab which you mention helps grip it. i don't want to solder flex to teensy until i decide to dedicate a teensy to the breakout.
another thing i wonder about is the usb-a anchor pins being that close to the edge of the board. i've never had a board of any type with usb that far forward on the edge and it seems to me it might have too much stress crack potential. maybe not, maybe just lack of experience using a placement like that.
Is the back filled with anything?
Dis you mean will the back of the card have anything on it? I wasn't planning on it. Anything useful you'd like to see there?