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參數(shù)資料
| 型號(hào)： | AT91FR40162SB-CU-999 |
| 廠商： | Atmel |
| 文件頁數(shù)： | 7/22頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 32BIT RISC 121BGA |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 系列： | AT91 |
| 核心處理器： | ARM7 |
| 芯體尺寸： | 16/32-位 |
| 速度： | 75MHz |
| 連通性： | EBI/EMI，UART/USART |
| 外圍設(shè)備： | WDT |
| 輸入/輸出數(shù)： | 32 |
| 程序存儲(chǔ)器容量： | 2MB（1M x 16） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 256K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.65 V ~ 1.95 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 121-BGA |
| 包裝： | 帶卷 (TR) |
15
6410BS–ATARM–12-Jan-10
AT91FR40162SB
7.7
AT91 Flash Memory Uploader (FMU) Software
All Flash-based AT91 devices are delivered with pre-programmed software called the AT91
Flash Memory Uploader, which resides in the first sector of the embedded Flash. The Flash
Memory Uploader allows programming to the embedded flash through a serial port. Either of the
on-chip USARTs can be used by the Flash Memory Uploader. The purpose of the AT91 Flash
Memory Uploader is to provide a Flash programming solution during small and medium produc-
tiion. The FMU is “one-time usable”. This means that once the customer’s code is written in
sector 0 of the Flash, the FMU is overwritten. If IAP functionality is needed, customers need to
use the JTAG port or implement their own boot loader with IAP capability.
Figure 7-1.
Flash Memory Uploader
7.7.1
Flash Memory Uploader Operations
The Flash Memory Uplo ader requires the encapsulated Flash to be used as the
AT91FR40162SB boot memory and a valid clock to be applied to MCKI. After reset, the Flash
Memory Uploader immediately recopies itself into the internal SRAM and jumps to it. The follow-
ing operation requires this memory resource only. External accesses are performed only to
program the encapsulated Flash.
When starting, PIO input change interrupts are initialized on the RXD lines of both USARTs.
When an interrupt occurs, a Timer Counter channel is started. When the next input change is
detected on the RXD line, the Timer Counter channel is stopped. This is how the first character
length is measured and the USART can be initiated by taking into account the ratio between the
device master clock speed and the actual communication baud rate speed.
The Programming System, then, can send commands and data following a proprietary protocol
for the Flash device to be programmed. It is up to the Programming System to erase and pro-
gram the first sector of the Flash as the last step of the operation, in order to reduce, to a
minimum, the risk that the Flash Memory Uploader is erased and the power supply shuts down.
AT91R40008
USART0
USART1
16-Mbit
Flash Memory
AT91FR40162SB
Target System
NCSF
NCS0
Programming System
Serial
Port
RS232
Driver
RXD0
RXD1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT91FR40162SBPRE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Flash memory in a single compact 121-ball BGA package |
| AT91FR40162S-CJ | 功能描述:ARM微控制器 - MCU 256K SRAM 2M FLASH IND TEMP RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT |
| AT91FR40162S-CJ SL383 | 制造商:Atmel Corporation 功能描述:MCU 32-bit 91F ARM7TDMI RISC 2048KB Flash 1.8V 121-Pin BGA T/R |
| AT91FR4042 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
| AT91FR4042_02 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT91 ARM Thumb Microcontrollers |
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