Based on LPC55S69JBD64 chip (Data Sheet):
- Cortex-M33 96 MHz (2 cores up to 150 Mhz)
- 640 KB Flash
- 320 KB RAM
- High-speed USB 2.0 host/device controller: 8 bi-directional endpoints including EP0 (*)
- HTQFP64 packaging
In order to support other MCUs from the LPC5500 family, the HIC limits usage to one core, 256 KB Flash and 96 KB RAM.
(*) "Supports 8 physical (16 logical) endpoints" (source: Data Sheet)
| Region | Size | Start | End |
|---|---|---|---|
| Flash | 256 KB | 0x0000_0000 | 0x0004_0000 |
| SRAM | 96 KB | 0x2000_0000 | 0x2004_0000 |
| USB RAM | 16 KB | 0x4010_0000 | 0x4010_4000 |
Bootloader size is 64 KB
Reference design is based on MCU-Link.
| Signal | I/O | Symbol | Pin |
|---|---|---|---|
| SWD / JTAG | |||
| SWCLK / TCK | O | PIO0_0 | 36 |
| SWDIO / TMS | I/O | PIO0_2 | 52 |
| SWO / TDO | I | PIO0_3 | 53 |
| TDI | O | PIO0_1 | 2 |
| nRESET | I/O | PIO0_19 | 58 |
| GNDDetect | I | PIO0_22 | 50 |
| UART | |||
| UART RX | I | PIO0_24 | 45 |
| UART TX | O | PIO0_25 | 51 |
| LEDs | |||
| Con. LED | O | PIO0_5 | 56 |
Additional pins are used to drive external circuitry:
- SWDIO TX Enable (PIO0_28, pin 44)
- nRESET Output Enable (PIO0_13, pin 46)
The lpc55s69_mculink_bl and lpc55s69_mculink_if images support both
MCU-LINK and MCU-LINK-PRO boards. Installation of the bootloader can be
done by putting the board in firmware update mode and using the NXP
blhost tool:
$ blhost --usb 0x1fc9,0x0021 flash-image lpc55s69_mculink_bl_crc.hex erase
The MCU-LINK does not have amy buttons, but both board have "Disable VCOM" and "Disable SWD" respectively mapped to non-forwarding reset and forwarding reset functionality in DAPLink.
| Signal | I/O | Symbol | Pin |
|---|---|---|---|
| Button | |||
| NF-RST But. | I | PIO0_18 | 38 |
| F-RST But. | I | PIO0_27 | 18 |
The MCU-LINK-PRO
defines board type detection using HW_VER_4 and HW_VER_3. When
HW_VER_4 and HW_VER_3 are respectively low and high, we determine that
the board is a MCU-LINK-PRO, otherwise we assume the board is a MCU-LINK.
MCU-LINK only has one red activity LED. MCU-LINK-PRO has 7 LEDs (1 red
and 6 green), 5 are currently used by DAPLink (see table below).
| Signal | I/O | Symbol |
|---|---|---|
| Detection | ||
| HW_VER_4 | I | PIO1_5 |
| HW_VER_3 | I | PIO1_4 |
| LEDs | ||
| Con. LED (r) | O | PIO0_5 |
| Run. LED (g) | O | PIO1_17 |
| HID LED (g) | O | PIO1_13 |
| CDC LED (g) | O | PIO1_18 |
| MSC LED (g) | O | PIO1_15 |
| N/A LED 1 (g) | O | PIO1_12 |
| N/A LED 2 (g) | O | PIO1_12 |