I'm using 56F805 to control a number of DC controllers. The DSP is hooked up to a separate H-bridge, which receives two digital signals for...

I'm using 56F805 to control a number of DC controllers. The DSP is hooked up to a separate H-bridge, which receives two digital signals for direction, and one PWM for current control (for 1 motor). Is there an advantage to using PWMMC over the regular PWM bean? All the functionality seems to be in PWM already, so what's the advantage of PWMMC?

Hi, I'm working on microcontroler freescale. And I have to develop a SPI interface via hardware IO. Have anyone already developed...

Hi, I'm working on microcontroler freescale. And I have to develop a SPI interface via hardware IO. Have anyone already developed this kind of SPI soft or is there anyone how could give me the chronograph of the 3 signals (MISO, MOSI and CLK)??? Thnaks in advance for your help.

Hello group, my name is Carlo and I am a new member. I'm developing with the MC56F8013 DSP demo board and I'm having some trouble. ...

Hello group, my name is Carlo and I am a new member. I'm developing with the MC56F8013 DSP demo board and I'm having some trouble. Problem #1: I cannot get the DSP to boot up properly in standalone mode, when disconnected from the PC. I use the C+ASM stationery. The startup code which copies variables from FLASH to RAM at startup seems t

I'm using an evaluation version, and get the following link error for sine function: Link Error : Undefined : "Fsin" Referenced from...

I'm using an evaluation version, and get the following link error for sine function: Link Error : Undefined : "Fsin" Referenced from "Fmain" Link failed I remembered to have #include Is this the limitation on the evaluation version?

It appears that the only clock source for the PWM unit is the IPBUS, which is always 1/2 the chip operating frequency (section 11.5.2). My ...

It appears that the only clock source for the PWM unit is the IPBUS, which is always 1/2 the chip operating frequency (section 11.5.2). My chip is running at 80 MHz, so I get a 40MHz clock at the PWM unit. I need a faster PWM clock speed, for smaller pulse-width deltas at high pwm rates. Is there any way in the 56F805 to clock the PWM unit at the full chip operat

Hi! My DSP56311EVM is nicely working on my old desktop PC, P3 with win2k. I installed SUITE56 on the laptop (P4, winxp), and the...

Hi! My DSP56311EVM is nicely working on my old desktop PC, P3 with win2k. I installed SUITE56 on the laptop (P4, winxp), and the board seems to be not detected. Any idea of what's going wrong? Thanks!

Hello everyone, It seems I have ran into a wall or I'm missing an EE type deal with my lack of electral engineering knowledege for an...

Hello everyone, It seems I have ran into a wall or I'm missing an EE type deal with my lack of electral engineering knowledege for an 56f805. I have programmed my DSP to talk to a 1-wire temp sensor. The problem I am having is I can configure the pin as an output and pull the pin active low to reset the device but when it talks back I can not seem to c

Hi, I am working with the DSP56858. In the CPU bean for my project, I can select a value of crystal from 2MHz to 4MHz. Where in the...

Hi, I am working with the DSP56858. In the CPU bean for my project, I can select a value of crystal from 2MHz to 4MHz. Where in the program is this crystal value being used? Is it being saved as a global variable? If so, in which file would it be? Thanks. Hardeep

Hi Guys: Please bear with my dumb questions. I am trying to understand how the FALSH and RAM memories are used in a DSP chip. My...

Hi Guys: Please bear with my dumb questions. I am trying to understand how the FALSH and RAM memories are used in a DSP chip. My understanding is that the FLASH is like the hard drive while the RAM in a DSP is same as the RAM in a computer. With 56F8013, we have 16kB Flash and 4kB RAM. Is it correct when a DSP starts running, the p

Hi to all, I've finished a design with a DSP56321, and i am now debugging the hardware. My approach is nothing original: i just...

Hi to all, I've finished a design with a DSP56321, and i am now debugging the hardware. My approach is nothing original: i just copied from the DSP56321EVM schematics the part between the processor and the PC's parallel port, and wish to use SUITE56 to load a program into the dsp's memory. This part consists only in a few line buffers/drivers and