diff options
Diffstat (limited to 'hw/thefreeman/avr32dd20-devkit/hwdef.h')
| -rw-r--r-- | hw/thefreeman/avr32dd20-devkit/hwdef.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/hw/thefreeman/avr32dd20-devkit/hwdef.h b/hw/thefreeman/avr32dd20-devkit/hwdef.h index f1b6095..231f74a 100644 --- a/hw/thefreeman/avr32dd20-devkit/hwdef.h +++ b/hw/thefreeman/avr32dd20-devkit/hwdef.h @@ -28,6 +28,7 @@ * 18 PA1 G: aux green * 19 PA2 B: aux blue * 20 PA3 CH: detect charging + * or BBY: boost bypass PFET * * BST EN enable the boost regulator and Op-Amp * DAC sets the current, max current depends on Vset voltage divider and Rsense @@ -35,6 +36,8 @@ * and low value Rsense (high current range, pin high) * IN- NFET : pull up after BST enable to eliminate startup flash, pull down otherwise * CH senses the status of the onboard charger + * BBY routes power around the boost converter in li-ion 3V mode + * (pin low = bypass, pin high = boost) * BATT LVL : Vbat * (100.0/(330+100)) * LVB is for OTSM firmware, not used here */ @@ -77,6 +80,11 @@ enum CHANNEL_MODES { #define BST_ENABLE_PIN PIN5_bp #define BST_ENABLE_PORT PORTD_OUT +// BST bypass +#define USE_BST_BYPASS +#define BST_BYPASS_PIN PIN3_bp +#define BST_BYPASS_PORT PORTA_OUT + // HDR // turns on HDR FET for the high current range #define HDR_ENABLE_PIN PIN7_bp @@ -133,7 +141,9 @@ inline void hwdef_setup() { VPORTA.DIR = PIN0_bm // R | PIN1_bm // G | PIN2_bm // B - //| PIN3_bm // CH + #ifdef USE_BST_BYPASS + | PIN3_bm // BBY + #endif | PIN7_bm; // HDR VPORTD.DIR = PIN5_bm // EN | PIN6_bm // DAC @@ -143,7 +153,9 @@ inline void hwdef_setup() { //PORTA.PIN0CTRL = PORT_PULLUPEN_bm; // R //PORTA.PIN1CTRL = PORT_PULLUPEN_bm; // G //PORTA.PIN2CTRL = PORT_PULLUPEN_bm; // B - //PORTA.PIN3CTRL = PORT_PULLUPEN_bm; // CH + #ifdef USE_BST_BYPASS + PORTA.PIN3CTRL = PORT_PULLUPEN_bm; // BBY + #endif PORTA.PIN4CTRL = PORT_PULLUPEN_bm; PORTA.PIN5CTRL = PORT_PULLUPEN_bm; //PORTA.PIN6CTRL = PORT_PULLUPEN_bm; // BATT LVL @@ -177,6 +189,12 @@ inline void hwdef_setup() { // to generate a zero without spending power on the DAC // (and do this in set_level_zero() too) + // TCA/TCB/TCD aren't being used, so turn them off + TCA0.SINGLE.CTRLA = 0; + TCB0.CTRLA = 0; + TCB1.CTRLA = 0; + TCD0.CTRLA = 0; + } |