The Arm Beetle IoT evaluation board is built around the Arm CoreLink SSE-100 Subsystem, which allows design teams to create IoT endpoints faster and with lower risk. Arm’s scalable IP solutions are designed to target across the value chain, from sensors to servers. Arm’s IoT subsystem with Mbed OS is a complete reference system, that reduces the complexity and risk of a SoC design for IoT endpoints. The subsystem features a range of peripherals and interfaces. It is specifically designed for use with Cortex-M processors and Arm Cordio Bluetooth Smart Radio IP. Arm has taken this subsystem and generated a proof of concept test chip called Beetle.

1. Team Emertxe
EmxDev Boards - EmxARM9A03
Overview

2. Contents

3. EmxDev Boards – EmxARM9A03
Contents
● Target Overview
● Booting Sequence
● Peripheral Interfaces

4. Target Overview

5. EmxDev Boards – EmxARM9A03
Target Overview
● Know your Target Controller
● Target Architecture
● Target Board

6. EmxDev Boards – EmxARM9A03
Target Overview - Target Controller
●
ARM920T
– 200MIPS at 180MHz, MMU
– 16KB Inst & Data Cache
– ICE
●
Memories
– 128 ROM, 16 KB SRAM
– EBI
– SDRAM, SM,CF, NOR, NAND
●
Ethernet MAX 10/100
●
USB 2.0 FS Host
● USB 2.0 FS Device
● MCI
●
SSC
● USART
– Smart Card
– RS485, RS232
– IrDA
– Modem
●
I2C, SPI
● Debug Unit

7. EmxDev Boards – EmxARM9A03
Target Overview - Target Architecture

8. EmxDev Boards – EmxARM9A03
Target Overview - Base Board

9. EmxDev Boards – EmxARM9A03
Target Overview - Application Board

10. Booting Sequences

11. EmxDev Boards – EmxARM9A03
Booting Sequence
● Controller's Booting Sequence
● Boot Loader Stages

12. EmxDev Boards – EmxARM9A03
Booting Sequence - Controller's Boot Sequence
Device
Setup
SPI
Data Flash
Parallel
Boot
OR
Download from
Data Flash
Download from
EEPROM
Download from
8 bit Device
DBGU Serial
Download
USB Download
DFU Protocol
RUN
RUN
RUN
RUN
RUN
TWI
EEPROM Boot

13. ● Stage 1 Boot Loader
● Stage 2 Boot Loader
EmxDev Boards – EmxARM9A03
Booting Sequence – Boot Loader Stages

14. ● Pointer to Stage 2 Boot Loader
EmxDev Boards – EmxARM9A03
Booting Sequence – Stage 1 Boot Loader
ROM
(ROM Code)
SRAM
Memory
(serial / parallel)
(S1BL)
Stage 2
Boot Loader
Kernel
Data
Memory
(parallel)

15. ● Pointer to Kernel Image
● We use U-Boot as S2BL
EmxDev Boards – EmxARM9A03
Booting Sequence – Stage 2 Boot Loader
Memory
(parallel)
Stage 2
Boot Loader
Kernel
Data

16. Thank You