| LCD | 50% | Only one type of lcd implemented. No dma transfers (so updates are sloooow), no partial updates/inverse and other fancy stuff. |
| Backlight | 100% | PWM frequency is quite low ~500Hz but my backlight driver circuit can't cope with higher freq reliably. |
| Buttons | 100% | Hardware keys for generic/reference design. |
| I2C? | 100% | One can write and readback registers of the internal codec. |
| SD | 90% | Basicaly works. DMA handling is suboptimal. Needs more testing. |
| NAND | 0% | Not implemented |
| PCM | 10% 80% | I can play looping sample. Rockbox PCM driver not implemented yet. but playback is choppy. |
| Recording Codec | 0% 80% | Not implemented. Driver for internal Dolphin codec implemented but not much tested. No support for anything else than playback through i2s yet. |
| ADC Recording | 50% 0% | Implemented but Not implemented. not tested nor calibrated. |
| RTC ADC | 0% 50% | Not present in my device. From Implemented but not tested nor calibrated. various documents it seems that HYM8563 (PCF8563 clone) is widely used. Some members of the rk27xx family have internal RTC. |
| FM RTC | 50% 0% | RDA5807P? Not present in my device. From various documents it seems that HYM8563 (PCF8563 clone) is widely used. Some members of the rk27xx family have internal RTC. can work in TEA5767 compatibility mode. Rockbox has mature driver for that. |
| USB FM | 5% 50% | The USB core has some weird scheme of supporting control packets. Some requests seems to be handled purely in hardware which doesn't quite fit rockbox usbstack concept. RDA5807P? can work in TEA5767 compatibility mode. Rockbox has mature driver for that. |
| USB | 5% | The USB core has some weird scheme of supporting control packets. Some requests seems to be handled purely in hardware which doesn't quite fit rockbox usbstack concept. |
