This is a port of NuttX to the STM32L4 Family
Used development boards are the Nucleo L476RG, Nucleo L496ZG and
STM32L4VGDiscovery
Most code is copied and adapted from the STM32 Port.
TODO list
---------
Peripherals with equivalent implementation in STM32 port
IRQs : OK
GPIO : OK
EXTI : OK, to be tested.
HSI : OK
HSE : OK
PLL : Works @ 80 MHz
MSI : OK
LSE : OK
RCC : All registers defined, peripherals enabled, basic clock working
SYSCTL : All registers defined
USART : Working in normal mode (no DMA, to be tested, code is written)
DMA : works; at least tested with QSPI
SRAM2 : OK; can be included in MM region or left separate for special app
: purposes
FIREWALL : Code written, to be tested, requires support from ldscript
SPI : OK, tested (Including DMA)
I2C : Code written, to be tested
RTC : works
QSPI : works in polling, interrupt, DMA, and also memory-mapped modes
CAN : OK, tested
OTGFS : dev implemented, tested, outstanding issue with CDCACM
: (ACM_SET_LINE_CODING, but otherwise works); host implemented,
: only build smoke-tested (i.e. builds, but no functional testing
: yet)
Timers : Implemented, with PWM oneshot and freerun, tickless OS support.
: Limited testing (focused on tickless OS so far), PWM and QE tested OK.
PM : TODO, PWR registers defined
FSMC : TODO
AES : TODO
RNG : works
CRC : TODO (configurable polynomial)
WWDG : TODO
IWDG : TODO
MMCSD : TODO
ADC : TODO
DAC : TODO
New peripherals with implementation to be written from scratch
These are Low Priority TODO items, unless someone requests or contributes
it.
TSC : TODO (Touch Screen Controller)
SWP : TODO (Single wire protocol master, to connect with NFC enabled
: SIM cards)
LPUART : TODO (Low power UART working with LSE at low baud rates)
LPTIMER : TODO (Low power TIMER)
OPAMP : TODO (Analog operational amplifier)
COMP : There is some code (Analog comparators)
DFSDM : TODO (Digital Filter and Sigma-Delta Modulator)
LCD : TODO (Segment LCD controller)
SAIPLL : works (PLL For Digital Audio interfaces, and other things)
SAI : TODO (Digital Audio interfaces, I2S, SPDIF, etc)
HASH : TODO (SHA-1, SHA-224, SHA-256, HMAC)
DCMI : TODO (Digital Camera interfaces)
DMA2D : TODO (Chrom-Art Accelerator for image manipulation)
