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74 lines
2.9 KiB
Plaintext
74 lines
2.9 KiB
Plaintext
/**
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@defgroup boards_im880b im880b
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@ingroup boards
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@brief Support for the im880b with stm32l151cb-a
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## Hardware
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### MCU
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| MCU | stm32l151cb-a |
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|:--------------------- |:----------------------------------------- |
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| Family | ARM Cortex-M3 |
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| Vendor | ST Microelectronics |
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| RAM | 16KiB |
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| Flash | 128KiB |
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| Frequency | 32MHz (no external oscillator connected) |
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| FPU | no |
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| Timers | 10 (8x 16-bit, 2x watchdog timers) |
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| ADCs | 1x 24-channel 12-bit |
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| UARTs | 3 |
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| SPIs | 2 |
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| I2Cs | 2 |
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| Vcc | 1.65V - 3.6V |
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| Datasheet | [Datasheet](https://www.st.com/resource/en/datasheet/stm32l151cb-a.pdf) |
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| Reference Manual | [Reference Manual](https://www.st.com/content/ccc/resource/technical/document/reference_manual/cc/f9/93/b2/f0/82/42/57/CD00240193.pdf/files/CD00240193.pdf/jcr:content/translations/en.CD00240193.pdf) |
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| Programming Manual | [Programming Manual](https://www.st.com/content/ccc/resource/technical/document/programming_manual/5b/ca/8d/83/56/7f/40/08/CD00228163.pdf/files/CD00228163.pdf/jcr:content/translations/en.CD00228163.pdf) |
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| Board Manual | [Board Manual](https://cdn.sos.sk/productdata/29/eb/a68245ed/im880b-l-lorawan.pdf)|
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### User Interface
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## Flashing
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As no usb connector is present on the device an external programmer must
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be connected to the board for flashing. You can use JTAG or STLINK programmer.
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* JTAG:
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* - JTDO: PB_3 / P39
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* - JTDI: PA_15 / P38
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* - JTCK: PA_14 / P37
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* - JTMS: PA_13 / P34
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* STLINK:
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* - NRST: NRST / P7
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* - SWCLK: PA_14 / P37
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* - SWDAT: PA_13 / P34
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### STM32 Loader
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To flash RIOT on the board, after connecting the UART-USB bridge, just run:
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```
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BOARD=im880b make flash
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```
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This uses the stm32loader script to erase the memory and flash it interfacing
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with the STM32 ROM bootloader.
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## Connecting via Serial
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The default UART port is the USART1, there is no usb connection a USB/TTL
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converter must be used to connect to the board TX & RX pins. The default
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port is /dev/ttyUSB0. The pin connections are:
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* USART1:
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* - TX: PA_9 / P30
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* - RX: PA_10 / P31
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```
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BOARD=im880b make term
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```
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*/
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## SX1272 radio
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Please note that the board has a Semtech SX1272 radio. This means that when the
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semtech-loramac package or the sx127x driver are used the correct driver version
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(sx1272) must be selected.
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