MSP430-SDK: Schematic Verification

Hi Ashok,

We typically do schematic reviews on friday where the whole MSP hardware customer support team reviews the schematic together. Would you be ok with waiting till friday so we can give this a thorough review with the team?

Hi Ashok,

According to the schematic, it should be used in water meter application, please see my comments below.

1. Please ensure proper isolation between different ground planes(GND/USS_GND/RF_GND), based on the current schematic, it seems that all grounds use the same symbol and there is no clear different network labels.

2. USS_IN should be carefully protected since it can be damaged by the electrostatic breakdown if the device will run in a harsh environment based on our experience, so it is recommended to reserve the ESD protection circuits space in the board for backup, like using the TVS tube TPD4E1U06 to do the protection as shown below.

3. It seems your Pin71 PVCC1 isn't connected, please make sure all the VCC and GND pins have proper connected.

4. We connect JTAG_TXD and JTAG_RXD to the UART TXD/RXD for data transmission, but it seems you didn't connect them to the UART pin, however, if you don't use them for the communication, it should be fine, please double check it.

Thanks

Best Regards,
Peter