Скачать или смотреть GPIO - Live-coding Raspberry Pi Pico Emulator (Episode 17)

We'll continue working on SIO / GPIO and the corresponding interrupts, then the SIO spinlocks and divisor.

In this live-coding series we're implementing an emulator for the RP2040 chip, which powers the new Raspberry Pi Pico. Every week we implement a new feature together, diving into the datasheet and thickening our Cortex M0+ implementation.

Previous streams:    • Live Coding RP2040 Emulator  

Get emails with the links to the future stream:
https://pages.wokwi.com/rp2040

For more details check out the Hackaday project: https://hackaday.io/project/177082-ra...

Project repo: https://github.com/wokwi/rp2040js
Wokwi Arduino simulator: https://wokwi.com

0:00 Hello
0:45 INTF, Integer Divider & Spin Locks: what happened since the last stream
13:00 Fixing Timer Alarms INTF behavior + test
18:49 Trying to run MicroPython. It works! 🎉
28:18 GPIO Implementation: RPIO Peripheral
41:10 The PADS peripheral
55:22 The GPIOn_STATUS register (datasheet section 2.19.6) and GPIO Input
1:08:05 Plugging in SIO + Adding the SQPI pins
1:17:52 Listening for pin state changes
1:27:57 Testing the new GPIO with Blink (+ bug fixes)
1:30:18 QSPI PADS
1:36:48 GPIO Interrupts
2:09:10 Testing with hello_gpio_irq SDK example + bug hunt
2:24:12 It works! + commit
2:29:05 Release version rp2040js 0.5.0 + summary