3.3.2 Programming with the DediProg SF100

As described in Programming with the DediProg SF600, the recommended method of programming the SPI NOR Flash Chips on the EV42J24A is via the use of a Dediprog SF600 level, in-system programmer. However, many users have only an SF100 level programmer available and the previous board for the CEC173x was only supported by the SF100. The SF100 programmer can be enabled to work with the EV42J24A by use of a flywire connection as shown below. Jumper wires are easily attached between pins on the programmer and the EV42J24A.

The details of this connection are shown in the figure below. The basic programming procedure remains the same, and the jumpers are recommended to be set to get power from the programmer. Unlike the SF600, the SF100 only supplies a single chip select. So, to program both SPI chips with the SF100, the user must manually move the chip select wire between chip select pins on the header as indicated below. To program all four devices, the SF100 must first be connected to header J61, which connects to SPI Channel 0, and the chip select signal must be sequentially connected between CS1 and CS2. Then, this procedure must be repeated by connecting the SF100 to header J62, which connects to SPI Channel 1 and the respective chip selects.

Alternatively, DediProg supplies the ISP-SP-CB Flywire cable. Using this cable and a 2x6 header socket, it is easy to make a simple programming cable.

The Dediprog ISP-SP-CB 10-pin Split Cable has a 14-pin header (only 10 of them are used for the ISP Split Cable), which can be connected to the SF100 ISP header directly. Each individual split cable has a different color and is labeled with the pin name so that they are easy to identify.

Shown below is a complete programming log using the SF100 programmer and the flywire setup. Note that this setup supports single I/O only but programs at 24 MHz. These settings come from the miscellaneous section under the config button.