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msp432p401lp-cc256x: use defines for Bluetooth GPIO config

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This commit is contained in:
Matthias Ringwald 2020-11-16 23:02:10 +01:00
parent 09c40e12a8
commit 9782e8840d
1 changed files with 24 additions and 12 deletions
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36
port/msp432p401lp-cc256x/main.c
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@ -205,6 +205,18 @@ Pin 36: BTRTS=GPIO-P6.6
Pin 37: BTCTS=GPIO-P5.6
*/
#define BLUETOOTH_TX_PORT GPIO_PORT_P3
#define BLUETOOTH_TX_PIN GPIO_PIN2
#define BLUETOOTH_RX_PORT GPIO_PORT_P3
#define BLUETOOTH_RX_PIN GPIO_PIN3
#define BLUETOOTH_RTS_PORT GPIO_PORT_P6
#define BLUETOOTH_RTS_PIN GPIO_PIN6
#define BLUETOOTH_CTS_PORT GPIO_PORT_P5
#define BLUETOOTH_CTS_PIN GPIO_PIN6
#define BLUETOOTH_nSHUTDOWN_PORT GPIO_PORT_P2
#define BLUETOOTH_nSHUTDOWN_PIN GPIO_PIN5
/* UART Configuration Parameter. These are the configuration parameters to
* make the eUSCI A UART module to operate with a 115200 baud rate. These
* values were calculated using the online calculator that TI provides
@ -286,8 +298,8 @@ void DMA_INT1_IRQHandler(void)
void DMA_INT2_IRQHandler(void)
{
MAP_DMA_clearInterruptFlag(DMA_CH5_EUSCIA2RX & 0x0F);
// raise RTS
GPIO_setOutputHighOnPin(GPIO_PORT_P5, GPIO_PIN6);
// raise our RTS
GPIO_setOutputHighOnPin(BLUETOOTH_CTS_PORT, BLUETOOTH_CTS_PIN);
}
static void hal_uart_dma_harvest(void){
@ -304,7 +316,7 @@ static void hal_uart_dma_harvest(void){
hal_dma_rx_offset = 0;
hal_dma_rx_start_transfer(hal_dma_rx_active_buffer);
hal_dma_rx_active_buffer = 1 - hal_dma_rx_active_buffer;
GPIO_setOutputLowOnPin(GPIO_PORT_P5, GPIO_PIN6);
GPIO_setOutputLowOnPin(BLUETOOTH_CTS_PORT, BLUETOOTH_CTS_PIN);
}
if (bytes_to_read == 0){
(*rx_done_handler)();
@ -313,15 +325,15 @@ static void hal_uart_dma_harvest(void){
void hal_uart_dma_init(void){
// nShutdown
MAP_GPIO_setAsOutputPin(GPIO_PORT_P2, GPIO_PIN5);
MAP_GPIO_setAsOutputPin(BLUETOOTH_nSHUTDOWN_PORT, BLUETOOTH_nSHUTDOWN_PIN);
// BT-CTS
MAP_GPIO_setAsOutputPin(GPIO_PORT_P5, GPIO_PIN6);
GPIO_setOutputHighOnPin(GPIO_PORT_P5, GPIO_PIN6);
MAP_GPIO_setAsOutputPin(BLUETOOTH_CTS_PORT, BLUETOOTH_CTS_PIN);
GPIO_setOutputHighOnPin(BLUETOOTH_CTS_PORT, BLUETOOTH_CTS_PIN);
// BT-RTS
MAP_GPIO_setAsInputPinWithPullDownResistor(GPIO_PORT_P6, GPIO_PIN6);
MAP_GPIO_setAsInputPinWithPullDownResistor(BLUETOOTH_RTS_PORT, BLUETOOTH_RTS_PIN);
// UART pins
MAP_GPIO_setAsPeripheralModuleFunctionInputPin(GPIO_PORT_P3,
GPIO_PIN2 | GPIO_PIN3, GPIO_PRIMARY_MODULE_FUNCTION);
MAP_GPIO_setAsPeripheralModuleFunctionInputPin(BLUETOOTH_TX_PORT, BLUETOOTH_TX_PIN, GPIO_PRIMARY_MODULE_FUNCTION);
MAP_GPIO_setAsPeripheralModuleFunctionInputPin(BLUETOOTH_RX_PORT, BLUETOOTH_RX_PIN, GPIO_PRIMARY_MODULE_FUNCTION);
// UART
@ -358,9 +370,9 @@ void hal_uart_dma_init(void){
MAP_DMA_enableInterrupt(INT_DMA_INT2);
// power cycle
MAP_GPIO_setOutputLowOnPin(GPIO_PORT_P2, GPIO_PIN5);
MAP_GPIO_setOutputLowOnPin(BLUETOOTH_nSHUTDOWN_PORT, BLUETOOTH_nSHUTDOWN_PIN);
delay_ms(10);
MAP_GPIO_setOutputHighOnPin(GPIO_PORT_P2, GPIO_PIN5);
MAP_GPIO_setOutputHighOnPin(BLUETOOTH_nSHUTDOWN_PORT, BLUETOOTH_nSHUTDOWN_PIN);
delay_ms(200);
// setup ping pong rx
@ -373,7 +385,7 @@ void hal_uart_dma_init(void){
MAP_DMA_enableChannel(DMA_CH5_EUSCIA2RX & 0x0F);
// ready
GPIO_setOutputLowOnPin(GPIO_PORT_P5, GPIO_PIN6);
GPIO_setOutputLowOnPin(BLUETOOTH_CTS_PORT, BLUETOOTH_CTS_PIN);
}
int hal_uart_dma_set_baud(uint32_t baud){