How to do serial over USB with demo/emulator-run.ts? #133
Description
First, let me write this is very cool. I'd like to use @mingpepe 's core1 branch to run CI tests for AtomVM which extensively uses core1.
I got AtomVM's hello_pico sample to work but I had to alter compilation flags to use uart instead of usb for serial.
The demo/emulator-run.ts script works well with hello_uart.hex, but I can't seem to get it working with hello_usb.hex. I tried to adapt the code from demo/micropython-run.ts, but failed: nothing is being printed. What am I missing?
Also as a side note, why is demo/emulator-run.ts using a hex file instead of uf2 file(s)?
diff --git a/demo/emulator-run.ts b/demo/emulator-run.ts
index e18cc9f..c268dd8 100644
--- a/demo/emulator-run.ts
+++ b/demo/emulator-run.ts
@@ -3,10 +3,11 @@ import { RP2040 } from '../src';
import { bootromB1 } from './bootrom';
import { loadHex } from './intelhex';
import { GDBTCPServer } from '../src/gdb/gdb-tcp-server';
+import { USBCDC } from '../src/usb/cdc';
// Create an array with the compiled code of blink
// Execute the instructions from this array, one by one.
-const hex = fs.readFileSync('hello_uart.hex', 'utf-8');
+const hex = fs.readFileSync('hello_usb.hex', 'utf-8');
const mcu = new RP2040();
mcu.loadBootrom(bootromB1);
loadHex(hex, mcu.flash, 0x10000000);
@@ -18,5 +19,10 @@ mcu.uart[0].onByte = (value) => {
process.stdout.write(new Uint8Array([value]));
};
+const cdc = new USBCDC(mcu.usbCtrl);
+cdc.onSerialData = (value) => {
+ process.stdout.write(value);
+};
+
mcu.core.PC = 0x10000000;
mcu.execute();