Goldpin connectors
I want to merge issues #7 (closed) #104 (closed) #97 (closed) #96 (closed) and have a general discussion about which connectors we really need and in what version.
To sum up:
v3.1:
- J6 - FPGA_JTAG MOLEX_87832-1420 (problem with FMC region3)
- CON1 - ATMEGA connector
- JP1 - LPC_JTAG Goldpin 2.54mm (problem with FMC region3)
- JP2 - LPC_PROG 1.27 dual goldpin mini
New LNLS version:
- J6 - FPGA_JTAG MOLEX_87832-1420
- JP2 - FTSH-105-01-F-D-K MMC JTAG 1.27MM
WUT: It's obvious that we want to remove CON1. Our concept is similar to new LNLS version. Now there are 3 questions:
- Do we need two connectors for MMC? Or we can keep only JTAG connector?
- Can we keep FPGA_JTAG connector in FMC region3? It would be easily used with single FMC and RTM. In the case of double FMC, it is now a possibility to use USB JTAG.
- Can we use MMC JTAG connector with 1.27mm pitch (like in new LNLS version)? It will be easier to keep it out of fmc region3 (we also use that connector in our other projects).
With new USB circuit, we have USB JTAG (please check #34 (closed)) and also ISP for MMC.