راستی آرا الکترونیک یه چند مدل از میکرو های STR91xFAxxx رو داره میاره ! برین بخرین تا تموم نشده
سلام
خصوصیت این شماره چیه؟
من قصد دارم یک شماره که هم از نظر مشخصات و هم مناسب کارهای آزمایشی هم باشه تهیه کنم برای همین هنوز نوعی که قیمت و مشخصات خوبی داشته باشه نیافتم
System:
ARM Cortex-M0 processor, running at frequencies of up to 50 MHz.
ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC).
Serial Wire Debug.
System tick timer.
Memory:
32 kB on-chip flash programming memory.
8 kB SRAM.
In-Application Programming (IAP) and In-System Programming (ISP) support via
on-chip bootloader software.
Digital peripherals:
11 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors.
GPIO pins can be used as edge and level sensitive interrupt sources.
Four general purpose counter/timers with a total of one capture input and nine
match outputs.
Programmable WatchDog Timer (WDT).
Analog peripherals:
10-bit ADC with input multiplexing among five pins.
Serial interfaces:
UART with fractional baud rate generation, internal FIFO, and RS-485 support.
One SPI controller with SSP features and with FIFO and multi-protocol capabilities
Clock generation:
12 MHz internal RC oscillator trimmed to 1% accuracy that can optionally be used
as a system clock.
Programmable watchdog oscillator with a frequency range of 7.8 kHz to 1.8 MHz.
PLL allows CPU operation up to the maximum CPU rate without the need for a
high-frequency crystal. May be run from an external clock or the internal RC
oscillator.
Clock output function with divider that can reflect the external clock, IRC clock,
CPU clock, and the Watchdog clock.
Power control:
Integrated PMU (Power Management Unit) to minimize power consumption during
Sleep and Deep-sleep modes.
Two reduced power modes: Sleep and Deep-sleep modes.
Processor wake-up from Deep-sleep mode via a dedicated start logic using up to
six of the functional pins.
Power-On Reset (POR).
Brownout detect with four separate thresholds for interrupt and forced reset.
Unique device serial number for identification.
Single 3.3 V power supply (1.8 V to 3.6 V).
Available as WLCSP16 package.
System:
ARM Cortex-M0 processor, running at frequencies of up to 50 MHz.
ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC).
Serial Wire Debug.
System tick timer.
Memory:
32 kB on-chip flash programming memory.
8 kB SRAM.
In-Application Programming (IAP) and In-System Programming (ISP) support via
on-chip bootloader software.
Digital peripherals:
11 General Purpose I/O (GPIO) pins with configurable pull-up/pull-down resistors.
GPIO pins can be used as edge and level sensitive interrupt sources.
Four general purpose counter/timers with a total of one capture input and nine
match outputs.
Programmable WatchDog Timer (WDT).
Analog peripherals:
10-bit ADC with input multiplexing among five pins.
Serial interfaces:
UART with fractional baud rate generation, internal FIFO, and RS-485 support.
One SPI controller with SSP features and with FIFO and multi-protocol capabilities
Clock generation:
12 MHz internal RC oscillator trimmed to 1% accuracy that can optionally be used
as a system clock.
Programmable watchdog oscillator with a frequency range of 7.8 kHz to 1.8 MHz.
PLL allows CPU operation up to the maximum CPU rate without the need for a
high-frequency crystal. May be run from an external clock or the internal RC
oscillator.
Clock output function with divider that can reflect the external clock, IRC clock,
CPU clock, and the Watchdog clock.
Power control:
Integrated PMU (Power Management Unit) to minimize power consumption during
Sleep and Deep-sleep modes.
Two reduced power modes: Sleep and Deep-sleep modes.
Processor wake-up from Deep-sleep mode via a dedicated start logic using up to
six of the functional pins.
Power-On Reset (POR).
Brownout detect with four separate thresholds for interrupt and forced reset.
Unique device serial number for identification.
Single 3.3 V power supply (1.8 V to 3.6 V).
Available as WLCSP16 package
سلام
دیتا شیت و اطلاعاتی که نشون دادین اشتباه هستش , معماری str91 ها بر پایه ی arm9e هستش نه بر اساس cortex-m0
سرعتش هم 96 مگا هرتزه
جالب اینه که دارای 2 تا حافظه ی فلش جدا گانه هستن
از همه مهتری هم توی این سری از میکرو های str91 یک قابلیت جالب به نام imc قرار دادن (3-Phase induction motor controller),یعنی سخت افزار های لازم برای درایو کردن موتور های سه فاز رو داره
حتما دیتاشیت رو بخونین
به نظر من معرفی این قطعه ی کوچک 16 پایه، زنگ خطری است برای میکروهای 8 بیتی کم پایه (Low Pin Count) مثل سری ATtiny از AVR یا PIC12 از Microchip. همیشه این نظر وجود داشت که برای کاربردهای ساده، میکروهای 8 بیتی با I/Oهای کم، تنها انتخاب ممکن هستند چون ساده ترین ARMها حداقل 48 پایه دارند. به نظر من این رویکرد فیلیپس در نوع خودش بدیع و قابل توجهه. :smile:
There is nothing so practical as a good theory. — Kurt Lewin, 1951
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