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Refactored bits of gpio_api.c 

In between the last two commits, I added debugging lines using serial to
try and locate the line of code that was causing the issues with GPIO.
However, didn't get anywhere with this because the gpio_write function
is defined in a header file, rather than in an implementation file, so
the printf function can't go there. As a result, it's just refactoring.
pull/17/head
Matthew Else 2013-07-19 15:23:25 +01:00
parent c703096234
commit 66ca1c9db2
1 changed files with 16 additions and 14 deletions
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30
libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11XX/gpio_api.c
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@ -41,20 +41,20 @@ void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) {
LPC_GPIO_TypeDef *port_reg; LPC_GPIO_TypeDef *port_reg;
switch (pin & 0xF000) { switch (pin & 0xF000) {
case 0x0000: case 0x0000:
port_reg = LPC_GPIO0; port_reg = LPC_GPIO0;
break; break;
case 0x1000: case 0x1000:
port_reg = LPC_GPIO1; port_reg = LPC_GPIO1;
break; break;
case 0x2000: case 0x2000:
port_reg = LPC_GPIO2; port_reg = LPC_GPIO2;
break; break;
case 0x3000: case 0x3000:
port_reg = LPC_GPIO3; port_reg = LPC_GPIO3;
break; break;
default: default:
return; return;
} }
#warning TODO (@toyowata): Need to check array offset #warning TODO (@toyowata): Need to check array offset
@ -63,7 +63,9 @@ void gpio_init(gpio_t *obj, PinName pin, PinDirection direction) {
obj->reg_in = &port_reg->DATA; obj->reg_in = &port_reg->DATA;
obj->reg_data= &port_reg->DATA; obj->reg_data= &port_reg->DATA;
gpio_dir(obj, direction); gpio_dir(obj, direction);
switch (direction) { switch (direction) {
case PIN_OUTPUT: pin_mode(pin, PullNone); break; case PIN_OUTPUT: pin_mode(pin, PullNone); break;
case PIN_INPUT : pin_mode(pin, PullDown); break; case PIN_INPUT : pin_mode(pin, PullDown); break;