Please get useful source below:
CPLD source code from:
https://www.nxp.com/downloads/en/printed-circuit-boards/T1024RDB-PC-DS.zip
First debug tool:
CodeWarrior® Development Suites for Networked Applications
SDK source:
https://www.nxp.com/webapp/swlicensing/sso/downloadSoftware.sp?catid=SDK_ENABLEMENT
More SDK introduction, please refer to: