This Updater can then be used to distribute new content to your customers. Software, SDKs and POSE page. This question is answered in detail in our Developer FAQ section. Click here to view our FAQs. Here are a couple of tips that may help developers work with the serial port on the Cradle interface of Handspring handhelds.
Some devices require hardware handshaking to operate.
It's useful to note that hardware handshaking should be turned off, and there is a possibility that some serial lines may need to be tied. The serial signals on the Cradle Connector are at TTL voltage levels, not RS232. Some devices are OK with these levels. Others, like laptops and desktop PCs, are not. The level shifting circuitry to communicate with RS232 based systems is done in the serial cradle.