1. Kconfig - Removed USART1 config option from STM32_STM32G47XX. Not necessary to adding LPUART functionality. 2. stm32_lowput.c - Added extra check from STM32G4 board because that is the only with LPUART functionality. 2. stm32_serial.c - Removed unneeded function (stm32_serial_get_lpuart). Fixed up_putc return bug. Added configuration for DMAMAP_LPUART RX and TX for STM32G4XXX only. The G4 is the only in this family with LPUART and uses a DMAMUX unlike the others.
1. Removed 1WIRE LPUART refereences in Kconfig and stm32_uart.h. There is no support for LPUART currently in stm32_1wire.c. 2. Removed references to LPUART under DMA_V2 ifdefs. STM32G4 uses DMA_V1, and I saw that none of the chips DMA_V2 (F20, F4) have LPUARTs. AFAIK the only chip in the stm32 folder that has LPUART peripherals is the STM32G4.
Removed unnecessary brackets and empty lines
Added lpuartnsh (LPUART NuttShell) config to the nucleo-g474re board configurations. nsh uses USART3 by default. lpuartnsh uses nsh as a template, changes the serial console to LPUART1, and adds the DMA configs to enable DMA for the LPUART.
Added support for using the lpuart prescaler register. Without prescaling the apbclock, 9600 baud is not supported on the G474RE. By utilizing the prescaler, when necessary, we can support nearly any baud rate (300 baud to 30M Mbaud). lowputc defaults to a prescaler of 16 for the lpuart so standard baud rates (9600 to 115200) are supported early in the boot process. Later in stm32_serial.c the ideal prescaler and BRR values are determined.
Added ifdef statements for LPUART code sections not compatible with other chips.
Changed LPUART BRR calcuation to use 64-bit integers.
Feedback from nuttx pull request. Added brackets around single line if/else statements. Reordered lpuartnsh defconfig file.
Fix lpuart brr calculation after attempting to break the calculation into 2 lines.
Removed TAB
Port C was not working because the GPIO pin count was
wrong. The 48 pin packages has 34 GPIO (Not counting PH0 & PH1)
It is GPIOA GPIO B (sans PB11) and GPIOC PC13-PC15
arch/arm/src/stm32/hardware/stm32_spi.h:
* Avoid numerous ifdef on STM32 part numbers and make the
different variations of SPI peripheral features more
self-documenting: based on STM32_HAVE_IP_SPI_V* defines
from chip.h, define some or all of HAVE_SPI_I2S,
HAVE_SPI_TI_MODE, HAVE_SPI_ARB_DATA_SIZE, HAVE_SPI_FIFOS,
HAVE_SPI_NSSP, HAVE_SPI_I2S_ASTRT, and make decisions on
which registers and bitfields to define based on them.
* Define registers and bitfields for STM32_HAVE_IP_SPI_V4,
currently used only for STM32G47XX family MCUs, including
SPI_CR1_CRCL, SPI_CR2_NSSP, SPI_CR2_FRXTH, SPI_CR2_LDMARX,
SPI_CR2_LDMATX, SPI_CR2_DS_SHIFT/SPI_CR2_DS_MASK,
SPI_SR_FRLVL_SHIFT/SPI_SR_FRLVL_MASK, and
SPI_I2SCFGR_ASTRTEN.
* SPI_I2SCFGR_I2SSTD_PHILLIPS: Was defined incorrectly as
(xx << SPI_I2SCFGR_I2SSTD_SHIFT). Corrected this to
(0 << SPI_I2SCFGR_I2SSTD_SHIFT).
* SPI_I2SCFGR_I2SSTD_MSB: Was defined incorrectly as
(0 << SPI_I2SCFGR_I2SSTD_SHIFT). Corrected this to
(1 << SPI_I2SCFGR_I2SSTD_SHIFT).
* Fix nxstyle errors.
arch/arm/include/stm32/chip.h:
* Add new section "Peripheral IP versions" and specify version of
SPI IP block for STM32F10XX, STM32F20XX, STM32F30XX, STM32F33XX,
STM32F37XX, STM32F4XXX, STM32G47XX, and STM32L15XX.
Add support for the STM32G474 family of microcontrollers and the
B-G474E-DPOW1 Discovery Board, which features a STM32G474RET6.
This is a major pull request as it adds support for an entirely
new family of STM32. This support is implemented in
arch/arm/src/stm32 and shares implementation with other STM32
families supported by that code, such as the 'L15xx, 'F10xx,
'F20xx, 'F3xxx, and 'F4xxx.
arch/arm/Kconfig:
arch/arm/include/stm32/chip.h:
arch/arm/include/stm32/irq.h:
arch/arm/src/stm32/Kconfig:
arch/arm/src/stm32/hardware/stm32_adc.h:
arch/arm/src/stm32/hardware/stm32_adc_v2.h:
arch/arm/src/stm32/hardware/stm32_dma.h:
arch/arm/src/stm32/hardware/stm32_dma_v1.h:
arch/arm/src/stm32/hardware/stm32_flash.h:
arch/arm/src/stm32/hardware/stm32_i2c.h:
arch/arm/src/stm32/hardware/stm32_i2c_v2.h:
arch/arm/src/stm32/hardware/stm32_memorymap.h:
arch/arm/src/stm32/hardware/stm32_pinmap.h:
arch/arm/src/stm32/hardware/stm32_tim.h:
arch/arm/src/stm32/stm32_allocateheap.c:
arch/arm/src/stm32/stm32_dma.c:
arch/arm/src/stm32/stm32_dma_v1.c:
arch/arm/src/stm32/stm32_dumpgpio.c:
arch/arm/src/stm32/stm32_gpio.c:
arch/arm/src/stm32/stm32_gpio.h:
arch/arm/src/stm32/stm32_lowputc.c:
arch/arm/src/stm32/stm32_rcc.c:
arch/arm/src/stm32/stm32_rcc.h:
arch/arm/src/stm32/stm32_serial.c:
arch/arm/src/stm32/stm32_syscfg.h:
arch/arm/src/stm32/stm32_uart.h:
* Add architectural support to existing NuttX files. This
makes the STM32G474 family parts accessible to the system.
With big thanks for detailed code review:
David Sidrane (davids5)
Mateusz Szafoni (raiden00)
Abdelatif Guettouche (Ouss4)
arch/arm/include/stm32/chip.h: remove redundant STM32 family definitions. It is already done in arch/arm/src/stm32/Kconfig
Approved-by: GregoryN <gnutt@nuttx.org>
NuttX: STM32F407VG has only one DAC
NDAC=2 causes compilation error when trying to use e.g. STM32_DAC1_CR macro.
Approved-by: GregoryN <gnutt@nuttx.org>
