МК по 15р. N76E003 (8051 nuvoton)

N76E003
Описание: http://www.nuvoton.com/resourc... ev1.00.pdf
Появились как замена подорожавшим STM8S003F3P6 (совместимы по выводам)
В целом выглядят более привлекательными несмотря на то что более медленные.
Мелкие устройства (амперметры, терморегуяторы, электронные нагрузки, блоки питания, таймеры) c Aliexpress интенсивно переводятся именно на эти процессоры.
Быстрый старт: http://mcu.goodboard.ru/viewtopic.php?id=116

Купить можно у производителя или на Aliexpress
http://www.nuvoton.com/hq/prod... _locale=en




Описание из доки
1. GENERAL DESCRIPTION
The N76E003 is an embedded flash type, 8-bit high performance 1T 8051-based microcontroller. The
instruction set is fully compatible with the standard 80C51 and performance enhanced.
The N76E003 contains a up to 18K Bytes of main Flash called APROM, in which the contents of User
Code resides. The N76E003 Flash supports In-Application-Programming (IAP) function, which
enables on-chip firmware updates. IAP also makes it possible to configure any block of User Code
array to be used as non-volatile data storage, which is written by IAP and read by IAP or MOVC
instruction. There is an additional Flash called LDROM, in which the Boot Code normally resides for
carrying out In-System-Programming (ISP). The LDROM size is configurable with a maximum of 4K
Bytes. To facilitate programming and verification, the Flash allows to be programmed and read
electronically by parallel Writer or In-Circuit-Programming (ICP). Once the code is confirmed, user can
lock the code for security.
The N76E003 provides rich peripherals including 256 Bytes of SRAM, 768 Bytes of auxiliary RAM
(XRAM), Up to 18 general purpose I/O, two 16-bit Timers/Counters 0/1, one 16-bit Timer2 with threechannel
input capture module, one Watchdog Timer (WDT), one Self Wake-up Timer (WKT), one 16-
bit auto-reload Timer3 for general purpose or baud rate generator, two UARTs with frame error
detection and automatic address recognition, one SPI, one I2
C, five enhanced PWM output channels,
eight-channel shared pin interrupt for all I/O, and one 12-bit ADC. The peripherals are equipped with
18 sources with 4-level-priority interrupts capability.
The N76E003 is equipped with three clock sources and supports switching on-the-fly via software. The
three clock sources include external clock input, 10 kHz internal oscillator, and one 16 MHz internal
precise oscillator that is factory trimmed to ±1% at room temperature. The N76E003 provides
additional power monitoring detection such as power-on reset and 4-level brown-out detection, which
stabilizes the power-on/off sequence for a high reliability system design.
The N76E003 microcontroller operation consumes a very low power with two economic power modes
to reduce power consumption － Idle and Power-down mode, which are software selectable. Idle
mode turns off the CPU clock but allows continuing peripheral operation. Power-down mode stops the
whole system clock for minimum power consumption. The system clock of the N76E003 can also be
slowed down by software clock divider, which allows for a flexibility between execution performance
and power consumption.
With high performance CPU core and rich well-designed peripherals, the N76E003 benefits to meet a
general purpose, home appliances, or motor control system accomplishment.
N76E003 Datasheet
Oct 28, 2016 Page 6 of 261 Rev. 1.00
2. FEATURES
 CPU:
– Fully static design 8-bit high performance 1T 8051-based CMOS microcontroller.
– Instruction set fully compatible with MCS-51.
– 4-priority-level interrupts capability.
– Dual Data Pointers (DPTRs).
 Operating:
– Wide supply voltage from 2.4V to 5.5V.
– Wide operating frequency up to 16 MHz.
– Industrial temperature grade: -40℃ to +105℃.
 Memory:
– Up to 18K Bytes of APROM for User Code.
– Configurable 4K/3K/2K/1K/0K Bytes of LDROM, which provides flexibility to user developed
Boot Code.
– Flash Memory accumulated with pages of 128 Bytes each.
– Built-in In-Application-Programmable (IAP).
– Code lock for security.
– 256 Bytes on-chip RAM.
– Additional 768 Bytes on-chip auxiliary RAM (XRAM) accessed by MOVX instruction.
 Clock sources:
– 16 MHz high-speed internal oscillator trimmed to ±1% when VDD 5.0V, ±2% in all conditions.
– 10 kHz low-speed internal oscillator.
– External clock input.
– On-the-fly clock source switch via software.
– Programmable system clock divider up to 1/512.
 Peripherals:
– Up to 17 general purpose I/O pins and one input-only pin. All output pins have individual 2-level
slew rate control.
– Standard interrupt pins ̅̅̅̅̅̅̅ and ̅̅̅̅̅̅̅.
– Two 16-bit Timers/Counters 0 and 1 compatible with standard 8051.
N76E003 Datasheet
Oct 28, 2016 Page 7 of 261 Rev. 1.00
– One 16-bit Timer 2 with three-channel input capture module and 9 input pin can be selected.
– One 16-bit auto-reload Timer 3, which can be the baud rate clock source of UARTs.
– One 16-bit PWM counter interrupt for timer.
– One programmable Watchdog Timer (WDT) clocked by dedicated 10 kHz internal source.
– One dedicated Self Wake-up Timer (WKT) for self-timed wake-up for power reduced modes.
– Two full-duplex UART ports with frame error detection and automatic address recognition. TXD
and RXD pins of UART0 exchangeable via software.
– One SPI port with master and slave modes, up to 8 Mbps when system clock is 16 MHz.
– One I
2
C bus with master and slave modes, up to 400 kbps data rate.
– Three pairs, six channels of pulse width modulator (PWM) output, 10 output pins can be
selected., up to 16-bit resolution, with different modes and Fault Brake function for motor
control.
– Eight channels of pin interrupt, shared for all I/O ports, with variable configuration of edge/level
detection.
– One 12-bit ADC, up to 500 ksps converting rate, hardware triggered and conversion result
compare facilitating motor control.
 Power management:
– Two power reduced modes: Idle and Power-down mode.
 Power monitor:
– Brown-out detection (BOD) with low power mode available, 4-level selection, interrupt or reset
options.
– Power-on reset (POR).
 Strong ESD and EFT immunity.
 Development Tools:
– Nuvoton On-Chip-Debugger (OCD) with KEILTM development environment.
– Nuvoton In-Circuit-Programmer (ICP).
– Nuvoton In-System-Programming (ISP) via UART

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здесь я написал что-то не туда.

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Да, действительно (по описанию) очень даже прикольный. Чип. До STM8S/L он не дотягивает разве что NVIC'ом. Хотя, может быть приоритеты прерываний все-таки имеются, просто не обозначены в спецификации. На taobao эти чипы есть (наверное оптом) по 0,5юаня. А это ~8.3 американских цента... По цене они уделали даже озвученый STM8S003.

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Сообщение от Voland_ Хотя, может быть приоритеты прерываний все-таки имеются, просто не обозначены в спецификации.

Имеются, как и у всех х51. На стр. 203-207 идет описание приоритетов.

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Сообщение от paskal как и у всех х51

воу-воу!! ). Interrupt controller не очень-то относится к ядру, и у каждого производителя он свой, опциональный. А учитывая, что 8051 используют ооочень многие производители, сомневаюсь что вы их все пересмотрели . Допустим вот. на стр.87-89 есть описание, где для приоритетов прерываний используется только один бит.

PS: за "наколку" для углубленного изучения спасибо.

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генератор кода
кривой (работает 1 раз)
https://github.com/Jen-Chih-Liu/N76E003_CODE_GEN
там найдешь exe файл

Добавлено через 12 минут
запускать из папки dist/dyaddtable
там нужные библиотеки

0

Сообщение от Voland_ Допустим вот. на стр.87-89 есть описание, где для приоритетов прерываний используется только один бит.

Там все также как было в оригинальном интеловском 8051. Это Nuvoton расширил до 2-х бит сделав 4 уровня приоритетов.

0

кто хочет починить генератор кода ?

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