I understand about JTAG but how do you interface the JTAG pins to the PC running the development software? On 23 February 2014 22:45, Martin Klingensmith wrote: > > On 2/23/2014 5:25 PM, David C Brown wrote: > > But how do you program a chip in circuit rather than on the development > > board? > > Most (all?) PLDs have JTAG connections and are non-volatile. You can use > any suitable header or pogo pins. > > I believe a majority of FPGAs are volatile and have various power-up > programming methods - serial platform flash (special flash chip), > commodity serial flash, parallel flash, etc. > > - > Martin K > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 __________________________________________ David C Brown 43 Bings Road Whaley Bridge High Peak Phone: 01663 733236 Derbyshire eMail: dcb.home@gmail.com SK23 7ND web: www.bings-knowle.co.uk/dcb --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .