Automotive

I wish to debug a legacy board using a MB96F637RB processor to do some reverse engineering and modification of existing code. MY plan was to use a MB2198-01 Emulator with Softune workbench 6, however I cannot find library files that support the CY/MB96F637RB processor. Any help would be appreciated including suggestions about other approaches.

Hello,

I use a CY96F315RS with a 16Mhz Resonator on 48Mhz (Murata CSTCE) in an application with Stop Mode for standby. 

Sometimes (about 1 from 100 switches) the MCU hangs after wake from the stop mode and NO code will be executed anymore.

When we measure the current consumption, only less than 10mA is measured in the event of a fault, normally it is over 40mA. Then the only way to get him run is to reset the MCU. 

Regards,

Jackson

Hello,

I would like to generate fast sine using PWM and DMA (128kHz sine). This signal would source inverter, it would be needed complementary PWM signal, but only one of PWM out can be active during one half of sine, the second out has to be fixed low during this time (like on the below picture).

I used PWM dedicated for Motor Control, because it has got a feature to force states on the PWM output (line selection). I prepared 3 lookup tables with Period, Duty cycle and Line selection.

uint32_t period[SINE_SIZE];
uint32_t duty[SINE_SIZE];
uint32_t lineSel[SINE_SIZE];

PWM is running in Up mode, at the beggining of PWM cycle there are sent new values from lookup tables to TCPWM registers (sending is done using DMA).

period[i]  -> TCPWM0_GRPx_CNTy_PERIOD_BUFF
duty[i]      -> TCPWM0_GRPx_CNTy_CC0_BUFF
lineSel[i] -> TCPWM0_GRPx_CNTy_LINE_SEL_BUFF

I set up a following configuration:

An result of such configuration:

Unfortunately chops are not in accordance with defined values in lookup tables. My suspicion is that DMA transfer tooks to much time. Transfer is triggered on CC1 event, unCC1 is set to 1u.

My questions:
1. What can be a latency of DMA?
2. Is it possible to set up Trigger Multiplexer that one Trig out (TCPWM) is shared between three Trig ins of DMA (ch 8, 1 and 0)?
3. Any additional hints how to configure peripherials to achive mentioned signal?

I am developing a FlexRay communication board.
I am using your communication chip.
Can I get sample code for CY88121C FlexRay controller?

Thank you.