參數(shù)資料
型號(hào)： ST7LITE19F1M6
英文描述： ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI
中文描述： ST7LITE1 - 8單電壓閃存EEPROM的MEMORY.DATA位MCU。 ADC的。 4定時(shí)器。的SPI
文件頁(yè)數(shù)： 116/122頁(yè)
文件大小： 1716K
代理商： ST7LITE19F1M6
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ST7LITE0, ST7SUPERLITE
116/122
16 IMPORTANT NOTES
16.1 Execution of BTJX Instruction
Description
Executing a BTJx instruction jumps to a random
address in the following conditions: the jump goes
to a lower address (jump backward) and the test is
performed on a data located at the address
00FFh.
16.2 In-Circuit Programming of devices
previously
programmed
Watchdog option
with
Hardware
Description
I
n-Circuit Programming of devices configured with
Hardware Watchdog (WDGSW bit in option byte 1
programmed to 0) requires certain precautions
(see below).
In-Circuit Programming uses ICC mode. In this
mode, the Hardware Watchdog is not automati-
cally deactivated as one might expect. As a conse-
quence, internal resets are generated every 2 ms
by the watchdog, thus preventing programming.
The device factory configuration is Software
Watchdog so this issue is not seen with devices
that are programmed for the first time. For the
same reason, devices programmed by the user
with the Software Watchdog option are not im-
pacted.
The only devices impacted are those that have
previously been programmed with the Hardware
Watchdog option.
Workaround
Devices configured with Hardware Watchdog
must be programmed using a specific program-
ming mode that ignores the option byte settings. In
this mode, an external clock, normally provided by
the programming tool, has to be used. In ST tools,
this mode is called "ICP OPTIONS DISABLED".
Sockets on ST programming tools (such as
ST7MDT10-EPB) are controlled using "ICP OP-
TIONS DISABLED" mode. Devices can therefore
be reprogrammed by plugging them in the ST Pro-
gramming Board socket, whatever the watchdog
configuration.
When using third-party tools, please refer the
manufacturer’s documentation to check how to ac-
cess specific programming modes. If a tool does
not have a mode that ignores the option byte set-
tings, devices programmed with the Hardware
watchdog option cannot be reprogrammed using
this tool.
16.3 In-Circuit Debugging with Hardware
Watchdog
In Circuit Debugging is impacted in the same way
as In Circuit Programming by the activation of the
hardware watchdog in ICC mode. Please refer to
Section 16.2
.
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參數(shù)描述
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ST7LITE2_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
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