Hello Support Team,
I am working with a HJ-580 board that includes a DA14580-based module and I try to to implement the Serial Port Service (DSPS) Application with smart snippets. There is a problem when downloading.
Compilation with keil uvision is ok, there is no problem.
I try to download the .Hex file inside the HJ-580 module using arduino 3.3V uart. I only use RX and TX on P0_4,P0_5 with 57600,N,8,1 from the arduino uart bridge (comxx), plus power supply pin 3.3V,GND.
1-Can you confirm, that there is no need of the uart-cts and uart-rts signal to download a file?
2- when the booter ask for a hard reset, is it a reset for the DA14580 from the HJ-580 module ?
I try to put the RST pin of the HJ-580 to 1 without effect.
If I reset the arduino, the booter tell me "reset detected" but afterthis there is a CRC problem and the download fail.
3- There is a pin named "UART RX Enable on the HJ-580 module. Have this pin be grounded to enable the download with the booter?