Novena PVT2 ECO List
This is a list of all the changes applied to the board from PVT1 to PVT2 (Crowd Supply initial campaign) release. If it's not on this list, it didn't happen.
Each change has the format of issue summary/resolution, and specific change
Contents
ECO1: Improve HPD margin
HPD on i.MX6 has a low impedance (10k). This causes marginal HPD performance on some boards. Make R29L stronger.
| PVT1 | PVT2 | Notes |
|---|---|---|
| R29L 10k, 1% / REC1005N | R29L 1k, 1% | HDMI HPD perforance |
ECO2: EOL issue U11D
STMPE610 is EOL. Switch to STMPE811, pin-compatible and not EOL.
| PVT1 | PVT2 | Notes |
|---|---|---|
| U11D STMPE610 | U11D STMPE811QTR | resolve EOL issue |
ECO3: EOL issue audio amplifier
NS4890 is EOL. Replace with compatible NS4890B in two places.
| PVT1 | PVT2 | Notes |
|---|---|---|
| U10A, U12A NS4890 | U10A, U12A NS4890B | resolve EOL issue |
ECO4: Improve kernel panic logging
U10S is too small for good kernel panic logging. Replace with larger capacity I2C EEPROM to store several crashes worth of logs.
| PVT1 | PVT2 | Notes |
|---|---|---|
| U10S 24LC32A-I/ST | U10S FT24C512AUTR-T | improve KP logging |
ECO5: 47uF 1206 capacitor is wrong AGAIN
The wrong package type (1210) is being ordered for this 1206 part. This was supposed to be corrected on PVT1. Please double-confirm that instruction is understood that this part cannot be substituted with a 1210 footprint.
| DVT and PVT1 | PVT2 | Notes |
|---|---|---|
| C43M 47uF, 6.3V, 20% X5R | 47uF, 6.3V, 20% X5R (CL31A476MQHNNNE) | double-confirm this change is understood! |
| C44M 47uF, 6.3V, 20% X5R | 47uF, 6.3V, 20% X5R (CL31A476MQHNNNE) | |
| C45M 47uF, 6.3V, 20% X5R | 47uF, 6.3V, 20% X5R (CL31A476MQHNNNE) | |
| C18M 47uF, 6.3V, 20% X5R | 47uF, 6.3V, 20% X5R (CL31A476MQHNNNE) | |
| C52C 47uF, 6.3V, 20% X5R | 47uF, 6.3V, 20% X5R (CL31A476MQHNNNE) |
