Tool/software:
Hi Team,
I would like to know is there any specific settings is needed for enabling the 3rd and 4th channel output?
With H-bridge configuration and Half-bridge mode configuration the DRV8714S-Q1 is only enabling the 1st and 2nd channel. We have tried by giving input to IN3 and IN4 and also remapped the input as IN1 and IN2 but 3rd and 4th channel is not providing the output.
Hi John,
Can you also capture a waveform of the output and PVDD?
Can you tell me what this register value is:
Can you try setting it just drive high side or drive low side for HB3 and HB4?
Best,
Keerthi
Hi Keerthi,
This is for the working channel; I had given the input to IN1 and mapped to HB2. HB1 is made as Drive low side mode by setting the register 7-6 as 01b.
PVDD is 12V.
C4 is SH2 output.
Ok, I will check by changing the HB3& HB4 as Drive high side and Drive low side configuration.
Hi Keerthi,
Please find the waveform for Drive High side configuration is enabled.
When I tried to make the 3rd channel with PWM drive it is not providing the desired output, here SH3 showing the GH3 voltage.
My configurations are,
BRG_MODE: 00b
HB1_CTRL: 01b
HB2_CTRL: 00b
HB3_CTRL: 11b
HB4_CTRL: 00b
HB1_PWM: 00b
HB2_PWM: 00b
HB3_PWM: 01b
HB4_PWM: 10b
HB1_HL: 1b
HB2_HL: 0b
HB3_HL: 0b
HB4_HL: 0b
