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LpcUart: [#22] This could have worked.

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* It appears that LPC11u68 has ony USART0 redirected to USB as debug UART.
* The code here was written only for USART1-4.
This commit is contained in:
RedHawk
2023-05-05 19:31:30 +03:00
parent 620439fff4
commit 13e392f37b
5 changed files with 124 additions and 6 deletions
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14
source/shoh/src/peripherals/LpcUart.cpp
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@@ -13,6 +13,10 @@
* We don't have movable pins -> not needed.
*
* Muxing is like this:
* Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 14, (IOCON_FUNC4 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
* Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 13, (IOCON_FUNC4 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
*
* USART0 (the only debug uart):
* Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 18, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
* Chip_IOCON_PinMuxSet(LPC_IOCON, 0, 19, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
*/
@@ -90,7 +94,7 @@ LpcUart::LpcUart(const LpcUartConfig &cfg) {
* UARTs.
* */
/* Use main clock rate as base for UART baud rate divider */
Chip_Clock_SetUSARTNBaseClockRate(Chip_Clock_GetMainClockRate(), false);
Chip_Clock_SetUSARTNBaseClockRate(Chip_Clock_GetMainClockRate(), false); //(115200 * 256), false);
}
uart = nullptr; // set default value before checking which UART to configure
@@ -123,19 +127,19 @@ LpcUart::LpcUart(const LpcUartConfig &cfg) {
if(cfg.tx.port >= 0) {
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.tx.port, cfg.tx.pin, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.tx.port, cfg.tx.pin, (IOCON_FUNC4 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
}
if(cfg.rx.port >= 0) {
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.rx.port, cfg.rx.pin, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.rx.port, cfg.rx.pin, (IOCON_FUNC4 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
}
if(use_cts) {
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.cts.port, cfg.cts.pin, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.cts.port, cfg.cts.pin, (IOCON_FUNC4 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
}
if(use_rts) {
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.rts.port, cfg.rts.pin, (IOCON_FUNC1 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
Chip_IOCON_PinMuxSet(LPC_IOCON, cfg.rts.port, cfg.rts.pin, (IOCON_FUNC4 | IOCON_MODE_INACT | IOCON_DIGMODE_EN));
}
notify_rx = nullptr;