J-Flash
- Works with RX600, ARM7/9/11, Cortex-A5/A8/A9 and Cortex-M0/M0+/M1/M3/M4/M7 cores
- Supports the following internal and external flash devices:
- internal flash of most popular microcontrollers
- CFI-compliant NOR flash (the combinations 18x, 2x8, 1x16, 2x16 are supported)
- most non-CFI compliant NOR flash devices (the combinations 18x, 2x8, 1x16, 2x16 are supported)
- SPI NOR-flash
- NAND flash
Contents
J-Flash comes with sample projects for most popular microcontrollers and evaluation boards which run out-of-the-box. J-Flash can be controlled via GUI or via command line which makes it also possible to use J-Flash for production purposes. Download J-Flash as part of the J-Link Software & Documentation Package:
Programming Speeds
The following table shows some performance values regarding the programming speed.
| Microcontroller | Hardware | Flash device | Flash organization | Programming speed (KBytes/sec.) |
|---|---|---|---|---|
| Atmel AT49BV162A Eval board | Atmel AT91EB40 | Atmel AT49BV162A internal flash | 1x16 bits | 97.8 |
| Atmel AT91RM9200 | Cogent CSB337 Eval board | Intel 28F640J3 | 1x16 bits | 93.0 |
| Digi NS9360 | Net Silicon NS9360 Eval board | AMD AM29LV160DB | 2x16 bits | 208.5 |
| Sharp LH7A400-10 | LogicPD LH7A400-10 Eval board | Intel 28F640J3A120 | 2x16 bits | 147.8 |
| Analog Devices ADuC7020 | Analog Devices ADuC7020 Eval board | Analog Devices ADuC7020 internal flash | 1x32 bits | 30.8 |
| Atmel AT91SAM7S64 | Atmel AT91SAM7-EKS64 Eval board | Atmel AT91SAM7S64 internal flash | 1x32 bits | 18.5 |
| Atmel AT91SAM7X256 | Atmel AT91SAM7X-EK Eval board | Atmel AT91SAM7X256 internal flash | 1x32 bits | 35.3 |
| Philips LPC2106 | IAR LPC2106 Eval board | Philips LPC2106 internal flash | 1x32 bits | 22.2 |
| ST STR711 | IAR STR711 Eval board | ST STR711 internal flash | 1x32 bits | 50.5 |
| Philips PCF87750 | Philips PCF87750 (custom hardware) | Philips PCF87750 internal flash | 1x32 bits | 68.2 |
What is Multi-Bank Programming support?
Multi-bank programming support describes the possibility to program different flash devices, present on the same hardware, in one Flash programming session. For example, if you want to use the internal flash of your target hardware as well as the external flash for the target application code, multi-bank programming enables you to download the target application into the internal and external flash in one flash programming session. The settings for both flash banks are saved in the same J-Flash project, so you will only need one project in order to program multiple flash banks.
Memory mapped QSPI flash support
Most modern MCUs have a dedicated QSPI unit on-chip that makes the QSPI flash memory mapped available in the MCU address space so that it can access the QSPI flash like parallel flash and directly execute instructions from it (execute-in-place, XiP). For most of such MCUs, QSPI flash programming is supported out-of-the-box. If it is supported for a specific MCU, please refer to the list of supported devices.
SPI flash support
As SPI flash memories are not memory-mapped and can be connected to basically any SPI unit a MCU provides, there are no out-of-the-box algorithms available for that. However, customers can always add a flash bank and algorithm on their own for supporting such flashes by making use of the open flash loader functionality. For more information, please refer to the SEGGER Wiki.
eMMC support
There are no out-of-the-box algorithms available for that. However, customers can always add a flash bank and algorithm on their own for supporting such flashes by making use of the open flash loader functionality. For more information, please refer to the SEGGER Wiki.
DataFlash support
As DataFlash memories are not memory-mapped and can be connected to basically any SPI unit a MCU provides, there are no out-of-the-box algorithms available for that. However, customers can always add a flash bank and algorithm on their own for supporting such flashes by making use of the open flash loader functionality. For more information, please refer to the SEGGER Wiki.
NAND flash support
As NAND flash memories are not memory-mapped and can be connected in different ways to the MCU (dedicated NAND flash controller, just GPIOs, ...), there are no out-of-the-box algorithms available for that. However, customers can always add a flash bank and algorithm on their own for supporting such flashes by making use of the open flash loader functionality. For more information, please refer to the SEGGER Wiki.