Hi!
I am currently developing an electronic board using the microprocessor R32C/118.
For the connection of debuger E8a I found two different types of connections:
and provides a connection by pins P64, P65, P66, P67, P55, P50, CNVss,RESET #
this one provides a connection by pins P29, P30, P31, P32, P39, P44, CNVss,RESET #
My question:
I would like to know which of these connections is good, and if both are possible, what are the features not available while debugging, in the case of using one or the other connection (memory expansion, UART1 ...).
Thank you in advance for attention you pay to my question.
Where do you see that the RSK uses P29 and so on? That's not true.
The RSK uses P64-P67 and P50/P55 as is mentioned in the E8a manual.
Thank you for your answer, I found my mistake.
I thought that P64-P67 stands for the package pin number, but in fact it's p6_4 to p6_7 ...
So I still wonder if the UART1 can be use while debugging (since it shares pin P64-P67) ?
Same question with the memory expansion (since i shares pin P50 and P55).
UART1 cannot be used during debugging. If you look in the additional document for E8a describing operation with R32C devices you see that the debugger initilises all UART1 registers.
P50 and P55 are a little different as they are mainly used during software download. So if you put pull-ups on these pins it should work in memory expansion mode.
Thanks a lot for your attention!