Hi Folks I have been looking into some sorts of portable standalone programmers for PIC. The idea is for on site firmware update. The idea...

Hi Folks I have been looking into some sorts of portable standalone programmers for PIC. The idea is for on site firmware update. The idea is to preload the programmer with the firmware hex code (presumably the programmer is equipped with flash/eeprom to house the binary code. For security reason, the hex code is not distributed), and the service engineer will take the programmer to si...

I have a problem in my program. This program is to write in eeprom(hn58x2432) & read from it to display to lcd module.It is transmit by...

I have a problem in my program. This program is to write in eeprom(hn58x2432) & read from it to display to lcd module.It is transmit by I2C. Please help me to check my program. Thanks. It have some problem when it compiled.Below is the error message. LINE 11 ACK REG P2.0==============> ILLEGAL MNEMONIC LINE 12 SCL REG P2.1==============> ILLEGAL MNEMONIC LINE 13

I have a problem in my program. This program is to write in eeprom(hn58x2432) & read from it to display to lcd module.It is transmit by...

I have a problem in my program. This program is to write in eeprom(hn58x2432) & read from it to display to lcd module.It is transmit by I2C. Please help me to check my program. Thanks. It have some problem when it compiled.Below is the error message. LINE 11 ACK REG P2.0==============> ILLEGAL MNEMONIC LINE 12 SCL REG P2.1==============> ILLEGAL MNEMONIC LINE 13

I have a EP9307 based custom designed board. At present it is using the same setup as the development kit for EP9307. At present we use redboot...

I have a EP9307 based custom designed board. At present it is using the same setup as the development kit for EP9307. At present we use redboot to download zimage on to flash and then boot the kernel by loading it into sdram. I want to load the Zimage from SDCARD directly. I have modified first stage bootloader to load from EEprom, This in turn loads the second stage bootloader which initial...

I have a EP9307 based custom designed board. At present it is using the same setup as the development kit for EP9307. At present we use...

I have a EP9307 based custom designed board. At present it is using the same setup as the development kit for EP9307. At present we use redboot to download zimage on to flash and then boot the kernel by loading it into sdram. I want to load the Zimage from SDCARD directly. I have modified first stage bootloader to load from EEprom, This in turn loads the second stage bootloader which ini...

Hi, I am developing dspi code for mcf54452 board. I am communicating processor with EEPROM (AT25080A) slave device. Write function is working...

Hi, I am developing dspi code for mcf54452 board. I am communicating processor with EEPROM (AT25080A) slave device. Write function is working fine. But the read function is not working. Write seq: ---------- 1. Send WREN command 2. Send write Instruction 3. Send address where to be data written 4. Send data Note: i checked the write seq by seeing the signals in scope. Every byte ...

I am designing a new USB device that contains the Cypress EZ-USB FX chip. I am trying to download some very simple/basic firmware code to the...

I am designing a new USB device that contains the Cypress EZ-USB FX chip. I am trying to download some very simple/basic firmware code to the EZ-USB FX chip through the Cypress USB Control Panel. Before I get too far, let me start this by saying that the device does enumerate as a Cypress EZ-USB - EEPROM Missing device. With that said, as soon as I select the .hex file to download firmwar...

Hi all, I have released under GPL some code that some of you might find useful. 1) fconfig It is a Linux application to read and modify...

Hi all, I have released under GPL some code that some of you might find useful. 1) fconfig It is a Linux application to read and modify RedBoot configuration. I created it when I needed to synchronize Linux configuration (MAC and IP addresses, UART baudrate, etc.) with RedBoot config. 2) ee24 It is a Linux MTD driver (kernel 2.6.x) for 24XX series of I2C eeproms. It supports EEPRO...

Analog Devices, Altera and Danville Signal joined forces to create the ADDS-21261/Cyclone DSP & FPGA Evaluation Package featuring Danville's new...

Analog Devices, Altera and Danville Signal joined forces to create the ADDS-21261/Cyclone DSP & FPGA Evaluation Package featuring Danville's new dspstak 21261zx DSP Engine and dspstak c96k46 I/O Module. The dspstak 21261zx combines the power of a SHARC DSP and a Cyclone FPGA. With a supporting cast of SDRAM, Flash, EEProm, SPI, Programmable Clocks, USB and RS-232, the dspstak is great f...

Hi Guys, I have a EP9307 (Arm 920T) based board. The design is based on Cirrus logic EP9307 development board. At present the boot sequence is...

Hi Guys, I have a EP9307 (Arm 920T) based board. The design is based on Cirrus logic EP9307 development board. At present the boot sequence is first stage bootloader (com port) => redboot (com port) => Zimage (ethernet) => Ramdisk (ethernet). I want to load Zimage directly from SDcard without using redboot. I have modified first stage bootloader to boot from spi eeprom. This in turn loads a

Hi, I'm having some problems using i2c to write to an eeprom, a 24lc515. Sometimes it'll write to it without any problems, and sometimes...

Hi, I'm having some problems using i2c to write to an eeprom, a 24lc515. Sometimes it'll write to it without any problems, and sometimes it won't write at all. The code I am using is this: void EE_wr_byte(int EE_address, char data) { unsigned char transfer; unsigned int temp; unsigned char control = 0xA0; P4OUT |= SDA + SCL; //Stop P4DIR |= SDA + SCL; //Port as output P4OUT &= ~S...

Microchip has introduced eight members of the NEW 8-bit PIC? microcontroller family with an integrated Liquid-Crystal Display (LCD) module. ...

Microchip has introduced eight members of the NEW 8-bit PIC? microcontroller family with an integrated Liquid-Crystal Display (LCD) module. These LCD PIC microcontrollers include the world's first 28-pin Flash LCD microcontrollers, and the first programmable 80-pin Flash LCD microcontrollers, capable of driving 192 segments for touchscreen and segmented LCD displays. Microchip's LCD PIC micr...

Does anyone know if there's a flash version of the Motorola 6805 C8/C9 chip that is pin compatible with the Motorola chip or a pin...

Does anyone know if there's a flash version of the Motorola 6805 C8/C9 chip that is pin compatible with the Motorola chip or a pin compatible chip that has 4K or more of rewritable memory like flash or EEPROM in addition to code memory.

Mu Code for HC12 is given below : USER_STACKTOP equ $0a00 ;just above RAM area PORTA equ $0000 ;Port A register PORTB equ $0001 ;Port B...

Mu Code for HC12 is given below : USER_STACKTOP equ $0a00 ;just above RAM area PORTA equ $0000 ;Port A register PORTB equ $0001 ;Port B register PORTP equ $0056 ;Port P register DDRA equ $0002 ;Port A Data Direction Register DDRB equ $0003 ;Port B Data Direction Register DDRP equ $0057 ;Port P Data Direction Register INTCR equ $001e ;Interrupt Control Register COPCTL eq...

In our target board, we use 32K x 8 EEPROM. Our NVM is partitioned into non-relocatable area and relocatable area. In the non-relocatable...

In our target board, we use 32K x 8 EEPROM. Our NVM is partitioned into non-relocatable area and relocatable area. In the non-relocatable area, there is block reserved for machine serial number, a block reserved for clock value, and number of other blocks for different variables. In the relocatable area, we have two big blocks. One block stores machine events and the other block stores machi...