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参数资料
| 型号： | ST7PLU09MCTRE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8 |
| 封装： | 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8 |
| 文件页数： | 27/124页 |
| 文件大小： | 1995K |
| 代理商： | ST7PLU09MCTRE |
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Known limitations
ST7LUS5, ST7LU05, ST7LU09
122/124
15.2.2
In-circuit programming of devices previously programmed with
Hardware Watchdog option
Description
In-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
automatically deactivated as one might expect. As a consequence, internal resets are
generated 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 impacted.
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
programming 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 are controlled using “ICP OPTIONS DISABLED” mode.
Devices can therefore be reprogrammed by plugging them in the ST Programming Board
socket, whatever the watchdog configuration.
When using third-party tools, please refer to the manufacturer's documentation to check
how to access specific programming modes. If a tool does not have a mode that ignores the
option byte settings, devices programmed with the hardware watchdog option cannot be
reprogrammed using this tool.
15.2.3
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 15.2.2.
相关PDF资料 |
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| ST90135M5T6 | 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP80 |
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| ST90158M9Q6 | 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7PMC1K2B3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7PMC1K2B6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
| ST7PMC1K2T3 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU with nested interrupts, Flash, 10-bit ADC, brushless motor control, five timers, SPI, LINSCI? |
| ST7PMC1K2T6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
| ST7PMC1K2T6/ST7PMC1K2 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI |
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