hello , Dan wrote in returning SangTae Ha "MPC850 and ATA/IDE" >There are at least three easy and inexpensive ways people add ATA/IDE >to the 8xx processors for embedded systems:
>Connect to PCMCIA interface >Use a simple CPLD between the processor bus and disk >Program one of the UPMs to generate timing and then >externally buffer the signals I use the third way (UPMB) to add ATA/IDE (SanDisk 16M) to Mpc860T for my embedded system and OS is MVL PE3.0 in my board. According to MPC860UM, Program the UPMs in the following steps: 1. Write patterns into the RAM array. 2. Program MPTPR 3. Program the machine mode register (MAMR and MBMR). 4. Set up BRx and ORx. But I have a difficulty to write patterns into the RAM array because I know little UPM timing. Who can give me a RAM table and MPTPR, MBMR example? Thanks in advance! ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
