RX hardware
Connection to easyDSP
To do monitoring and flash programming together, SCI1 should be connected to easyDSP.
So connect RXD1 and TXD1 pins of MCU to the easyDSP RX and TX pins.
Also connect easyDSP header #4 pin to MCU VCC.
Please check the corresponding pins by MCU type in the table below. The number of pin should be checked from MCU datasheet.
In case MCU has UB or UB# pin, it should be pulled down or pulled up respectively.
Other considerations :
- When reset, easyDSP /RESET pin goes low for 500msec around.
- In case there is a reset IC between easyDSP /RESET and MCU RES#, it should transfer easyDSP /RESET signal to MCU RES# within 0.5sec.
- RX and TX pins of easyDSP header are pulled up with 100kOhm resistor in the pod.
- In case you can't use SCI1, you can use another SCI channel but only monitoring is doable (flash programming not doable). In this case no need to connect /BOOT and /RESET pins.