> How does the RCC (clock tree) compare? RCC looks like in G0 family, which is not registers compatible with older versions. But clock tree is similar to those found in F4/F7.
czw., 16 kwi 2020 o 02:34 David Sidrane <david.sidr...@nscdg.com> napisał(a): > How does the RCC (clock tree) compare? > > On Wed, Apr 15, 2020, 5:11 PM Nathan Hartman <hartman.nat...@gmail.com> > wrote: > > > On Wed, Apr 15, 2020 at 4:08 PM Gregory Nutt <spudan...@gmail.com> > wrote: > > > This document address migration from F1 to F3 and addresses all major > > > differences between F1 and F3: AN4228, Application note, Migrating > from > > > STM32F1 Series to STM32F3 Series microcontrollers. Table 6 address > every > > > peripheral. > > > > Ok, I'll look at that. > > > > Meanwhile... So I've been studying, toward making a decision, whether > > to try implementing this in the stm32 directory or create a new one > > for stm32g4... I probably won't know which is better and which is less > > (or more!) work until I actually start writing code. > > > > As I'm looking at STM32F3 parts we support and compare to STM32G474, > > it seems the STM32F334 has the most similarities to this new part. > > > > Comparison: > > > > (At least what I know so far...) > > > > Both have GPIO ports ABCF. STM32G474CxT adds port G but only for > > PG10-NRST. That is, the reset pin can be used as a GPIO. > > > > Analog: the STM32G474Cxt is heavy on analog features with much more > > ADC, DAC, COMP, and OPAMP peripherals and pins than the STM32F3. These > > features are obviously new IP as the ADC adds Hardware Oversampling, > > IO Voltage Booster, Gain Compensation, Bulb Sampling, Sampling Time > > Control Trigger, Dual Interleaved Sampling, new Analog Watchdog > > features. The DAC adds Sample and Hold, and also Internal DACs that > > can be connected to other internal peripherals, e.g., to a COMP or > > OPAMP. And there's much more. [1] > > > > Timers: Both have HRTIM, but the STM32F334 has HRTIM IP version 1.0 > > while STM32G474Cxt has HRTIM IP version 2.0. This adds various > > features and capabilities, described in [2]. Also, the G4 more of the > > regular resolution timers. > > > > Communication: STM32F334 has CAN. STM32G474CxT has FDCAN1, FDCAN2, > > FDCAN3. STM32G474CxT has LPTIM, LPUART, SAI, USB. Also, more I2C and > > SPI. > > > > Side-by-side comparison of Ports, Pins, and Peripherals: > > > > Ports: > > =============================== > > STM32G474CxTx | STM32F334CxTx > > =============================== > > PORT_A | PORT_A > > PORT_B | PORT_B > > PORT_C | PORT_C > > PORT_F | PORT_F > > PORT_G | - x - > > ------------------------------- > > > > > > Pins: > > =============================== > > STM32G474CxTx | STM32F334CxTx > > =============================== > > PA0 | PA0 > > PA1 | PA1 > > PA2 | PA2 > > PA3 | PA3 > > PA4 | PA4 > > PA5 | PA5 > > PA6 | PA6 > > PA7 | PA7 > > PA8 | PA8 > > PA9 | PA9 > > PA10 | PA10 > > PA11 | PA11 > > PA12 | PA12 > > PA13 | PA13 > > PA14 | PA14 > > PA15 | PA15 > > ------------------------------- > > PB0 | PB0 > > PB1 | PB1 > > PB2 | PB2 > > PB3 | PB3 > > PB4 | PB4 > > PB5 | PB5 > > PB6 | PB6 > > PB7 | PB7 > > PB8-BOOT0 | PB8 > > PB9 | PB9 > > PB10 | PB10 > > PB11 | PB11 > > PB12 | PB12 > > PB13 | PB13 > > PB14 | PB14 > > PB15 | PB15 > > ------------------------------- > > PC13 | PC13 > > PC14-OSC32_IN | PC14-OSC32_IN > > PC15-OSC32_OUT | PC15-OSC32_OUT > > ------------------------------- > > PF0-OSC_IN | PF0-OSC_IN > > PF1-OSC_OUT | PF1-OSC_OUT > > ------------------------------- > > PG10-NRST | - x - > > ------------------------------- > > > > > > Peripherals: > > =============================== > > STM32G474CxTx | STM32F334CxTx > > =============================== > > ADC1 | ADC1 > > ADC2 | ADC2 > > ADC3 | - x - > > ADC4 | - x - > > ADC5 | - x - > > - x - | CAN > > COMP1 | - x - > > COMP2 | COMP2 > > COMP3 | - x - > > COMP4 | COMP4 > > COMP5 | - x - > > COMP6 | COMP6 > > COMP7 | - x - > > CRS | - x - > > DAC1 | DAC1 > > DAC2 | DAC2 > > DAC3 | - x - > > DAC4 | - x - > > FDCAN1 | - x - > > FDCAN2 | - x - > > FDCAN3 | - x - > > HRTIM1 | HRTIM1 > > I2C1 | I2C1 > > I2C2 | - x - > > I2C3 | - x - > > I2C4 | - x - > > I2S | - x - > > I2S2 | - x - > > I2S3 | - x - > > IR | IR > > LPTIM1 | - x - > > LPUART1 | - x - > > OPAMP1 | - x - > > OPAMP2 | OPAMP2 > > OPAMP3 | - x - > > OPAMP4 | - x - > > OPAMP5 | - x - > > OPAMP6 | - x - > > QUADSPI1 | - x - > > RCC | RCC > > RTC | RTC > > SAI1 | - x - > > SPI1 | SPI1 > > SPI2 | - x - > > SPI3 | - x - > > SYS | SYS > > TIM1 | TIM1 > > TIM15 | TIM15 > > TIM16 | TIM16 > > TIM17 | TIM17 > > TIM2 | TIM2 > > TIM20 | - x - > > TIM3 | TIM3 > > TIM4 | - x - > > TIM5 | - x - > > TIM8 | - x - > > - x - | TSC > > UCPD1 | - x - > > USART1 | USART1 > > USART2 | USART2 > > USART3 | USART3 > > USB | - x - > > ------------------------------- > > > > References: > > > > [1] STM32F3 vs STM32G4 Analog: AN5310: > > > > > https://www.st.com/content/ccc/resource/technical/document/application_note/group1/0e/97/a6/8e/6b/bd/49/40/DM00607955/files/DM00607955.pdf/jcr:content/translations/en.DM00607955.pdf > > > > [2] HRTIM differences: AN4539 Rev4, page 7, and Appendices: > > > > > https://www.st.com/content/ccc/resource/technical/document/application_note/13/d6/48/9d/11/11/4c/08/DM00121475.pdf/files/DM00121475.pdf/jcr:content/translations/en.DM00121475.pdf > > > > Cheers, > > Nathan > > >
